Import ocaml-duppy_0.8.0.orig.tar.gz

[dgit import orig ocaml-duppy_0.8.0.orig.tar.gz]

33 files changed, 17976 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
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+0.8.0 (12-11-2018)
+=====
+* Removed camlp4 syntactic sugar (unmaintained, unused in liquidsoap now).
+
+0.7.4 (10-11-2018)
+=====
+* Fix stack overflow by making recursive function fully tail-rec. (ref savonet/liquidsoap#640)
+
+0.7.3 (12-09-2018)
+=====
+* Fix write/select logic on windows systems. (savonet/liquidsoap#610)
+* Avoid race conditions when shutting down.
+
+0.7.2 (28-08-2018)
+=====
+* Add placeholder implementation for `caml_poll` on Win32.
+
+0.7.1 (18-08-2018)
+=====
+* Use poll() when available.
+* Wake up all queues when shutting down.
+
+0.7.0 (03-11-2017)
+=====
+* Fix bytes compatibility with OCaml 4.06 and above.
+* Fix camlp4 availability test.
+
+0.6.1 (23-08-2017)
+=====
+* Added SecureTransport support.
+
+0.6.0 (11-04-2017)
+=====
+* Added SSL support.
+
+0.5.2 (03-08-2015)
+=====
+* Dummy github release.
+
+0.5.1 (05-08-2013)
+=====
+* Removed win32 select work-around: patch applied upstream.
+
+0.5.0 (04-03-2013)
+=====
+* Remove Panic exception and let original exception bubble through.
+
+0.4.2 (08-10-2011)
+=====
+* Reimplemented monadic Mutex and Condition.
+* Consume more than one char when waking up Async tasks.
+
+0.4.1 (04-08-2011)
+=====
+* Added optional timeout for
+  all [Duppy.Io] and [Duppy.Monad.Io]
+  operations.
+* Fixed handling of EINTR: update the
+  timeout when restarting after being
+  interrupted.
+
+0.4.0 (26-06-2011)
+=====
+* Added a monad API to write
+  server code.
+* Close both sides of the pipe
+  in Duppy.Async
+* Make calls to [stop] and [wake_up]
+  thread-safe in Duppy.Async
+* Catch Unix.EINTR when calling Unix.select.
+
+0.3.2 (19-08-2010)
+=====
+* Switch from Thread.select to
+  Unix.select. They are the same on
+  POSIX and only Unix.select is available
+  on Win32..
+* Do not use assertions on Mutex.try_lock
+  on Win32: on this plateform, a thread can
+  double-lock a mutex, making the assertion
+  inconsistent.
+
+0.3.1 (14-10-2009)
+=====
+* Really catch raised exception on Duppy.Io
+  operations: catching was missing on recurrent
+  calls.
+
+0.3.0 (18-06-2009)
+=====
+* Added support for --enable-debugging configure option
+* Fixed Makefile for BSD: call $(MAKE) for generating documentation.
+* Added the possibility to restart the task after the returned positive
+  delay in Async.
+* Added unknown exceptions on Duppy.Io when calling on_error.
+
+0.2.0 (17-02-2009)
+=====
+* Fixed typo in Duppy.Async: exception is now Stopped.
+
+0.1.2 (01-07-2008)
+=====
+* Changed logic in shutdown for Async interface:
+  now [Duppy.Async.shutdown t] also wakes the task if
+  asleep. Still it can't stop a running task.
+* Fixed race conditions when a queue starts the select loop:
+  a task could be submitted, but no queue would wake up.
+
+0.1.1 (15-04-2008)
+=====
+* Fixed Conditions usage for non-unix systems
+* Fixed typos in the documentation, added some details
+* Installs .cmx file
+
+0.1.0 (07-03-2008)
+=====
+* Initial release
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+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
+
+
diff --git a/Makefile.in b/Makefile.in
new file mode 100644
index 0000000..9672296
--- /dev/null
+++ b/Makefile.in
@@ -0,0 +1,31 @@
+# $Id: Makefile.in 2660 2006-07-18 17:23:31Z dbaelde $
+
+PROGNAME := ocaml-duppy
+DISTFILES := @AUTOCONF_INSTALL_FILES@ CHANGES COPYING Makefile.in README \
+	bootstrap configure configure.ac  \
+	src/*.ml src/*.mli src/*.c src/Makefile.in src/META.in \
+	src/OCamlMakefile examples/*.ml examples/Makefile \
+	examples/Makefile.*.in examples/OCamlMakefile
+VERSION = @VERSION@
+
+all clean install uninstall:
+	$(MAKE) -C src $@
+
+distclean: clean
+	$(MAKE) -C examples clean
+
+doc:
+	$(MAKE) -C src htdoc
+	mkdir -p doc
+	rm -rf doc/html
+	mv src/doc/duppy/html doc
+	rm -rf src/doc
+
+dist:
+	rm -rf $(PROGNAME)-$(VERSION)
+	mkdir $(PROGNAME)-$(VERSION)
+	cp -R -L --parents $(DISTFILES) $(PROGNAME)-$(VERSION)
+	tar zcvf ../$(PROGNAME)-$(VERSION).tar.gz $(PROGNAME)-$(VERSION)
+	rm -rf $(PROGNAME)-$(VERSION)
+
+.PHONY: dist doc
diff --git a/README b/README
new file mode 100644
index 0000000..91f6adc
--- /dev/null
+++ b/README
@@ -0,0 +1,40 @@
+ocaml-duppy
+
+
+ocaml-duppy is an advanced scheduler for Ocaml programmers.
+
+Please read the COPYING file before using this software.
+
+Prerequisites:
+==============
+
+- ocaml >= 4.03.0
+
+- findlib >= 1.8.0
+
+- ocaml-pcre >= 7.3.4
+
+The code may work with earlier versions but these are the one currently
+supported.
+
+Compilation:
+============
+
+	$ make all
+
+This should build both the native and the byte-code version of the
+extension library.
+
+Installation:
+=============
+
+	$ make install
+
+This should install the library file (using ocamlfind) in the
+appropriate place.
+
+Author:
+=======
+
+This author of this software may be contacted by electronic mail
+at the following address: savonet-users@lists.sourceforge.net.
diff --git a/bootstrap b/bootstrap
new file mode 100755
index 0000000..151564b
--- /dev/null
+++ b/bootstrap
@@ -0,0 +1,17 @@
+#!/bin/sh -e
+
+if [ -d m4 ]; then
+  OPTIONS="-I m4"
+  aclocal -I m4
+fi
+autoreconf -f -i $OPTIONS $1
+# autoconf maintainers have not yet implemented
+# a function to install missing files from autoconf
+# itself, so we need to fake a call to automake here..
+automake -a -c -f 2>/dev/null || true
+if [ -d examples ]; then
+  if [ -f examples/configure.ac ]; then
+    cd examples
+    autoreconf -f -i
+  fi
+fi
diff --git a/config.guess b/config.guess
new file mode 100755
index 0000000..f50dcdb
--- /dev/null
+++ b/config.guess
@@ -0,0 +1,1480 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
+
+timestamp='2018-02-24'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+#
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
+#
+# You can get the latest version of this script from:
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+#
+# Please send patches to <config-patches@gnu.org>.
+
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Options:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright 1992-2018 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+set_cc_for_build='
+trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
+trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
+: ${TMPDIR=/tmp} ;
+ { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
+ { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+ { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
+dummy=$tmp/dummy ;
+tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int x;" > "$dummy.c" ;
+	for c in cc gcc c89 c99 ; do
+	  if ($c -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; then
+	     CC_FOR_BUILD="$c"; break ;
+	  fi ;
+	done ;
+	if test x"$CC_FOR_BUILD" = x ; then
+	  CC_FOR_BUILD=no_compiler_found ;
+	fi
+	;;
+ ,,*)   CC_FOR_BUILD=$CC ;;
+ ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+esac ; set_cc_for_build= ;'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+	PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+case "$UNAME_SYSTEM" in
+Linux|GNU|GNU/*)
+	# If the system lacks a compiler, then just pick glibc.
+	# We could probably try harder.
+	LIBC=gnu
+
+	eval "$set_cc_for_build"
+	cat <<-EOF > "$dummy.c"
+	#include <features.h>
+	#if defined(__UCLIBC__)
+	LIBC=uclibc
+	#elif defined(__dietlibc__)
+	LIBC=dietlibc
+	#else
+	LIBC=gnu
+	#endif
+	EOF
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`"
+
+	# If ldd exists, use it to detect musl libc.
+	if command -v ldd >/dev/null && \
+		ldd --version 2>&1 | grep -q ^musl
+	then
+	    LIBC=musl
+	fi
+	;;
+esac
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
+    *:NetBSD:*:*)
+	# NetBSD (nbsd) targets should (where applicable) match one or
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	#
+	# Note: NetBSD doesn't particularly care about the vendor
+	# portion of the name.  We always set it to "unknown".
+	sysctl="sysctl -n hw.machine_arch"
+	UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
+	    "/sbin/$sysctl" 2>/dev/null || \
+	    "/usr/sbin/$sysctl" 2>/dev/null || \
+	    echo unknown)`
+	case "$UNAME_MACHINE_ARCH" in
+	    armeb) machine=armeb-unknown ;;
+	    arm*) machine=arm-unknown ;;
+	    sh3el) machine=shl-unknown ;;
+	    sh3eb) machine=sh-unknown ;;
+	    sh5el) machine=sh5le-unknown ;;
+	    earmv*)
+		arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
+		endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'`
+		machine="${arch}${endian}"-unknown
+		;;
+	    *) machine="$UNAME_MACHINE_ARCH"-unknown ;;
+	esac
+	# The Operating System including object format, if it has switched
+	# to ELF recently (or will in the future) and ABI.
+	case "$UNAME_MACHINE_ARCH" in
+	    earm*)
+		os=netbsdelf
+		;;
+	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+		eval "$set_cc_for_build"
+		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+			| grep -q __ELF__
+		then
+		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+		    # Return netbsd for either.  FIX?
+		    os=netbsd
+		else
+		    os=netbsdelf
+		fi
+		;;
+	    *)
+		os=netbsd
+		;;
+	esac
+	# Determine ABI tags.
+	case "$UNAME_MACHINE_ARCH" in
+	    earm*)
+		expr='s/^earmv[0-9]/-eabi/;s/eb$//'
+		abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"`
+		;;
+	esac
+	# The OS release
+	# Debian GNU/NetBSD machines have a different userland, and
+	# thus, need a distinct triplet. However, they do not need
+	# kernel version information, so it can be replaced with a
+	# suitable tag, in the style of linux-gnu.
+	case "$UNAME_VERSION" in
+	    Debian*)
+		release='-gnu'
+		;;
+	    *)
+		release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2`
+		;;
+	esac
+	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+	# contains redundant information, the shorter form:
+	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+	echo "$machine-${os}${release}${abi}"
+	exit ;;
+    *:Bitrig:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+	echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE"
+	exit ;;
+    *:OpenBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+	echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE"
+	exit ;;
+    *:LibertyBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'`
+	echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE"
+	exit ;;
+    *:MidnightBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-midnightbsd"$UNAME_RELEASE"
+	exit ;;
+    *:ekkoBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-ekkobsd"$UNAME_RELEASE"
+	exit ;;
+    *:SolidBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-solidbsd"$UNAME_RELEASE"
+	exit ;;
+    macppc:MirBSD:*:*)
+	echo powerpc-unknown-mirbsd"$UNAME_RELEASE"
+	exit ;;
+    *:MirBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-mirbsd"$UNAME_RELEASE"
+	exit ;;
+    *:Sortix:*:*)
+	echo "$UNAME_MACHINE"-unknown-sortix
+	exit ;;
+    *:Redox:*:*)
+	echo "$UNAME_MACHINE"-unknown-redox
+	exit ;;
+    mips:OSF1:*.*)
+        echo mips-dec-osf1
+        exit ;;
+    alpha:OSF1:*:*)
+	case $UNAME_RELEASE in
+	*4.0)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+		;;
+	*5.*)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+		;;
+	esac
+	# According to Compaq, /usr/sbin/psrinfo has been available on
+	# OSF/1 and Tru64 systems produced since 1995.  I hope that
+	# covers most systems running today.  This code pipes the CPU
+	# types through head -n 1, so we only detect the type of CPU 0.
+	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+	case "$ALPHA_CPU_TYPE" in
+	    "EV4 (21064)")
+		UNAME_MACHINE=alpha ;;
+	    "EV4.5 (21064)")
+		UNAME_MACHINE=alpha ;;
+	    "LCA4 (21066/21068)")
+		UNAME_MACHINE=alpha ;;
+	    "EV5 (21164)")
+		UNAME_MACHINE=alphaev5 ;;
+	    "EV5.6 (21164A)")
+		UNAME_MACHINE=alphaev56 ;;
+	    "EV5.6 (21164PC)")
+		UNAME_MACHINE=alphapca56 ;;
+	    "EV5.7 (21164PC)")
+		UNAME_MACHINE=alphapca57 ;;
+	    "EV6 (21264)")
+		UNAME_MACHINE=alphaev6 ;;
+	    "EV6.7 (21264A)")
+		UNAME_MACHINE=alphaev67 ;;
+	    "EV6.8CB (21264C)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.8AL (21264B)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.8CX (21264D)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.9A (21264/EV69A)")
+		UNAME_MACHINE=alphaev69 ;;
+	    "EV7 (21364)")
+		UNAME_MACHINE=alphaev7 ;;
+	    "EV7.9 (21364A)")
+		UNAME_MACHINE=alphaev79 ;;
+	esac
+	# A Pn.n version is a patched version.
+	# A Vn.n version is a released version.
+	# A Tn.n version is a released field test version.
+	# A Xn.n version is an unreleased experimental baselevel.
+	# 1.2 uses "1.2" for uname -r.
+	echo "$UNAME_MACHINE"-dec-osf"`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`"
+	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	exitcode=$?
+	trap '' 0
+	exit $exitcode ;;
+    Amiga*:UNIX_System_V:4.0:*)
+	echo m68k-unknown-sysv4
+	exit ;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+	echo "$UNAME_MACHINE"-unknown-amigaos
+	exit ;;
+    *:[Mm]orph[Oo][Ss]:*:*)
+	echo "$UNAME_MACHINE"-unknown-morphos
+	exit ;;
+    *:OS/390:*:*)
+	echo i370-ibm-openedition
+	exit ;;
+    *:z/VM:*:*)
+	echo s390-ibm-zvmoe
+	exit ;;
+    *:OS400:*:*)
+	echo powerpc-ibm-os400
+	exit ;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+	echo arm-acorn-riscix"$UNAME_RELEASE"
+	exit ;;
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
+	echo arm-unknown-riscos
+	exit ;;
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+	echo hppa1.1-hitachi-hiuxmpp
+	exit ;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+	if test "`(/bin/universe) 2>/dev/null`" = att ; then
+		echo pyramid-pyramid-sysv3
+	else
+		echo pyramid-pyramid-bsd
+	fi
+	exit ;;
+    NILE*:*:*:dcosx)
+	echo pyramid-pyramid-svr4
+	exit ;;
+    DRS?6000:unix:4.0:6*)
+	echo sparc-icl-nx6
+	exit ;;
+    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+	case `/usr/bin/uname -p` in
+	    sparc) echo sparc-icl-nx7; exit ;;
+	esac ;;
+    s390x:SunOS:*:*)
+	echo "$UNAME_MACHINE"-ibm-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4H:SunOS:5.*:*)
+	echo sparc-hal-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+	echo sparc-sun-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
+	exit ;;
+    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+	echo i386-pc-auroraux"$UNAME_RELEASE"
+	exit ;;
+    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+	eval "$set_cc_for_build"
+	SUN_ARCH=i386
+	# If there is a compiler, see if it is configured for 64-bit objects.
+	# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
+	# This test works for both compilers.
+	if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
+		(CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		grep IS_64BIT_ARCH >/dev/null
+	    then
+		SUN_ARCH=x86_64
+	    fi
+	fi
+	echo "$SUN_ARCH"-pc-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4*:SunOS:6*:*)
+	# According to config.sub, this is the proper way to canonicalize
+	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+	# it's likely to be more like Solaris than SunOS4.
+	echo sparc-sun-solaris3"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4*:SunOS:*:*)
+	case "`/usr/bin/arch -k`" in
+	    Series*|S4*)
+		UNAME_RELEASE=`uname -v`
+		;;
+	esac
+	# Japanese Language versions have a version number like `4.1.3-JL'.
+	echo sparc-sun-sunos"`echo "$UNAME_RELEASE"|sed -e 's/-/_/'`"
+	exit ;;
+    sun3*:SunOS:*:*)
+	echo m68k-sun-sunos"$UNAME_RELEASE"
+	exit ;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3
+	case "`/bin/arch`" in
+	    sun3)
+		echo m68k-sun-sunos"$UNAME_RELEASE"
+		;;
+	    sun4)
+		echo sparc-sun-sunos"$UNAME_RELEASE"
+		;;
+	esac
+	exit ;;
+    aushp:SunOS:*:*)
+	echo sparc-auspex-sunos"$UNAME_RELEASE"
+	exit ;;
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint"$UNAME_RELEASE"
+	exit ;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint"$UNAME_RELEASE"
+	exit ;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+	echo m68k-atari-mint"$UNAME_RELEASE"
+	exit ;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+	echo m68k-milan-mint"$UNAME_RELEASE"
+	exit ;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+	echo m68k-hades-mint"$UNAME_RELEASE"
+	exit ;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+	echo m68k-unknown-mint"$UNAME_RELEASE"
+	exit ;;
+    m68k:machten:*:*)
+	echo m68k-apple-machten"$UNAME_RELEASE"
+	exit ;;
+    powerpc:machten:*:*)
+	echo powerpc-apple-machten"$UNAME_RELEASE"
+	exit ;;
+    RISC*:Mach:*:*)
+	echo mips-dec-mach_bsd4.3
+	exit ;;
+    RISC*:ULTRIX:*:*)
+	echo mips-dec-ultrix"$UNAME_RELEASE"
+	exit ;;
+    VAX*:ULTRIX*:*:*)
+	echo vax-dec-ultrix"$UNAME_RELEASE"
+	exit ;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+	echo clipper-intergraph-clix"$UNAME_RELEASE"
+	exit ;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+	eval "$set_cc_for_build"
+	sed 's/^	//' << EOF > "$dummy.c"
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
+	#if defined (host_mips) && defined (MIPSEB)
+	#if defined (SYSTYPE_SYSV)
+	  printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_SVR4)
+	  printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+	  printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0);
+	#endif
+	#endif
+	  exit (-1);
+	}
+EOF
+	$CC_FOR_BUILD -o "$dummy" "$dummy.c" &&
+	  dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+	  SYSTEM_NAME=`"$dummy" "$dummyarg"` &&
+	    { echo "$SYSTEM_NAME"; exit; }
+	echo mips-mips-riscos"$UNAME_RELEASE"
+	exit ;;
+    Motorola:PowerMAX_OS:*:*)
+	echo powerpc-motorola-powermax
+	exit ;;
+    Motorola:*:4.3:PL8-*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:Power_UNIX:*:*)
+	echo powerpc-harris-powerunix
+	exit ;;
+    m88k:CX/UX:7*:*)
+	echo m88k-harris-cxux7
+	exit ;;
+    m88k:*:4*:R4*)
+	echo m88k-motorola-sysv4
+	exit ;;
+    m88k:*:3*:R3*)
+	echo m88k-motorola-sysv3
+	exit ;;
+    AViiON:dgux:*:*)
+	# DG/UX returns AViiON for all architectures
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ]
+	then
+	    if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \
+	       [ "$TARGET_BINARY_INTERFACE"x = x ]
+	    then
+		echo m88k-dg-dgux"$UNAME_RELEASE"
+	    else
+		echo m88k-dg-dguxbcs"$UNAME_RELEASE"
+	    fi
+	else
+	    echo i586-dg-dgux"$UNAME_RELEASE"
+	fi
+	exit ;;
+    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
+	echo m88k-dolphin-sysv3
+	exit ;;
+    M88*:*:R3*:*)
+	# Delta 88k system running SVR3
+	echo m88k-motorola-sysv3
+	exit ;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+	echo m88k-tektronix-sysv3
+	exit ;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+	echo m68k-tektronix-bsd
+	exit ;;
+    *:IRIX*:*:*)
+	echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`"
+	exit ;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
+	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
+    i*86:AIX:*:*)
+	echo i386-ibm-aix
+	exit ;;
+    ia64:AIX:*:*)
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
+	fi
+	echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV"
+	exit ;;
+    *:AIX:2:3)
+	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+		eval "$set_cc_for_build"
+		sed 's/^		//' << EOF > "$dummy.c"
+		#include <sys/systemcfg.h>
+
+		main()
+			{
+			if (!__power_pc())
+				exit(1);
+			puts("powerpc-ibm-aix3.2.5");
+			exit(0);
+			}
+EOF
+		if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"`
+		then
+			echo "$SYSTEM_NAME"
+		else
+			echo rs6000-ibm-aix3.2.5
+		fi
+	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+		echo rs6000-ibm-aix3.2.4
+	else
+		echo rs6000-ibm-aix3.2
+	fi
+	exit ;;
+    *:AIX:*:[4567])
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+	if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then
+		IBM_ARCH=rs6000
+	else
+		IBM_ARCH=powerpc
+	fi
+	if [ -x /usr/bin/lslpp ] ; then
+		IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
+			   awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
+	else
+		IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
+	fi
+	echo "$IBM_ARCH"-ibm-aix"$IBM_REV"
+	exit ;;
+    *:AIX:*:*)
+	echo rs6000-ibm-aix
+	exit ;;
+    ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*)
+	echo romp-ibm-bsd4.4
+	exit ;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
+	echo romp-ibm-bsd"$UNAME_RELEASE"   # 4.3 with uname added to
+	exit ;;                             # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+	echo rs6000-bull-bosx
+	exit ;;
+    DPX/2?00:B.O.S.:*:*)
+	echo m68k-bull-sysv3
+	exit ;;
+    9000/[34]??:4.3bsd:1.*:*)
+	echo m68k-hp-bsd
+	exit ;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+	echo m68k-hp-bsd4.4
+	exit ;;
+    9000/[34678]??:HP-UX:*:*)
+	HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
+	case "$UNAME_MACHINE" in
+	    9000/31?)            HP_ARCH=m68000 ;;
+	    9000/[34]??)         HP_ARCH=m68k ;;
+	    9000/[678][0-9][0-9])
+		if [ -x /usr/bin/getconf ]; then
+		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+		    case "$sc_cpu_version" in
+		      523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0
+		      528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1
+		      532)                      # CPU_PA_RISC2_0
+			case "$sc_kernel_bits" in
+			  32) HP_ARCH=hppa2.0n ;;
+			  64) HP_ARCH=hppa2.0w ;;
+			  '') HP_ARCH=hppa2.0 ;;   # HP-UX 10.20
+			esac ;;
+		    esac
+		fi
+		if [ "$HP_ARCH" = "" ]; then
+		    eval "$set_cc_for_build"
+		    sed 's/^		//' << EOF > "$dummy.c"
+
+		#define _HPUX_SOURCE
+		#include <stdlib.h>
+		#include <unistd.h>
+
+		int main ()
+		{
+		#if defined(_SC_KERNEL_BITS)
+		    long bits = sysconf(_SC_KERNEL_BITS);
+		#endif
+		    long cpu  = sysconf (_SC_CPU_VERSION);
+
+		    switch (cpu)
+			{
+			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+			case CPU_PA_RISC2_0:
+		#if defined(_SC_KERNEL_BITS)
+			    switch (bits)
+				{
+				case 64: puts ("hppa2.0w"); break;
+				case 32: puts ("hppa2.0n"); break;
+				default: puts ("hppa2.0"); break;
+				} break;
+		#else  /* !defined(_SC_KERNEL_BITS) */
+			    puts ("hppa2.0"); break;
+		#endif
+			default: puts ("hppa1.0"); break;
+			}
+		    exit (0);
+		}
+EOF
+		    (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"`
+		    test -z "$HP_ARCH" && HP_ARCH=hppa
+		fi ;;
+	esac
+	if [ "$HP_ARCH" = hppa2.0w ]
+	then
+	    eval "$set_cc_for_build"
+
+	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
+	    # generating 64-bit code.  GNU and HP use different nomenclature:
+	    #
+	    # $ CC_FOR_BUILD=cc ./config.guess
+	    # => hppa2.0w-hp-hpux11.23
+	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+	    # => hppa64-hp-hpux11.23
+
+	    if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) |
+		grep -q __LP64__
+	    then
+		HP_ARCH=hppa2.0w
+	    else
+		HP_ARCH=hppa64
+	    fi
+	fi
+	echo "$HP_ARCH"-hp-hpux"$HPUX_REV"
+	exit ;;
+    ia64:HP-UX:*:*)
+	HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
+	echo ia64-hp-hpux"$HPUX_REV"
+	exit ;;
+    3050*:HI-UX:*:*)
+	eval "$set_cc_for_build"
+	sed 's/^	//' << EOF > "$dummy.c"
+	#include <unistd.h>
+	int
+	main ()
+	{
+	  long cpu = sysconf (_SC_CPU_VERSION);
+	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+	     results, however.  */
+	  if (CPU_IS_PA_RISC (cpu))
+	    {
+	      switch (cpu)
+		{
+		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+		  default: puts ("hppa-hitachi-hiuxwe2"); break;
+		}
+	    }
+	  else if (CPU_IS_HP_MC68K (cpu))
+	    puts ("m68k-hitachi-hiuxwe2");
+	  else puts ("unknown-hitachi-hiuxwe2");
+	  exit (0);
+	}
+EOF
+	$CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` &&
+		{ echo "$SYSTEM_NAME"; exit; }
+	echo unknown-hitachi-hiuxwe2
+	exit ;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*)
+	echo hppa1.1-hp-bsd
+	exit ;;
+    9000/8??:4.3bsd:*:*)
+	echo hppa1.0-hp-bsd
+	exit ;;
+    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+	echo hppa1.0-hp-mpeix
+	exit ;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*)
+	echo hppa1.1-hp-osf
+	exit ;;
+    hp8??:OSF1:*:*)
+	echo hppa1.0-hp-osf
+	exit ;;
+    i*86:OSF1:*:*)
+	if [ -x /usr/sbin/sysversion ] ; then
+	    echo "$UNAME_MACHINE"-unknown-osf1mk
+	else
+	    echo "$UNAME_MACHINE"-unknown-osf1
+	fi
+	exit ;;
+    parisc*:Lites*:*:*)
+	echo hppa1.1-hp-lites
+	exit ;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+	echo c1-convex-bsd
+	exit ;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+	echo c34-convex-bsd
+	exit ;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+	echo c38-convex-bsd
+	exit ;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+	echo c4-convex-bsd
+	exit ;;
+    CRAY*Y-MP:*:*:*)
+	echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*[A-Z]90:*:*:*)
+	echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \
+	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+	      -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*TS:*:*:*)
+	echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*T3E:*:*:*)
+	echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*SV1:*:*:*)
+	echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    *:UNICOS/mp:*:*)
+	echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+	FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
+	FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+	FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'`
+	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    5000:UNIX_System_V:4.*:*)
+	FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+	FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
+	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+	echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE"
+	exit ;;
+    sparc*:BSD/OS:*:*)
+	echo sparc-unknown-bsdi"$UNAME_RELEASE"
+	exit ;;
+    *:BSD/OS:*:*)
+	echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE"
+	exit ;;
+    *:FreeBSD:*:*)
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case "$UNAME_PROCESSOR" in
+	    amd64)
+		UNAME_PROCESSOR=x86_64 ;;
+	    i386)
+		UNAME_PROCESSOR=i586 ;;
+	esac
+	echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
+	exit ;;
+    i*:CYGWIN*:*)
+	echo "$UNAME_MACHINE"-pc-cygwin
+	exit ;;
+    *:MINGW64*:*)
+	echo "$UNAME_MACHINE"-pc-mingw64
+	exit ;;
+    *:MINGW*:*)
+	echo "$UNAME_MACHINE"-pc-mingw32
+	exit ;;
+    *:MSYS*:*)
+	echo "$UNAME_MACHINE"-pc-msys
+	exit ;;
+    i*:PW*:*)
+	echo "$UNAME_MACHINE"-pc-pw32
+	exit ;;
+    *:Interix*:*)
+	case "$UNAME_MACHINE" in
+	    x86)
+		echo i586-pc-interix"$UNAME_RELEASE"
+		exit ;;
+	    authenticamd | genuineintel | EM64T)
+		echo x86_64-unknown-interix"$UNAME_RELEASE"
+		exit ;;
+	    IA64)
+		echo ia64-unknown-interix"$UNAME_RELEASE"
+		exit ;;
+	esac ;;
+    i*:UWIN*:*)
+	echo "$UNAME_MACHINE"-pc-uwin
+	exit ;;
+    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+	echo x86_64-unknown-cygwin
+	exit ;;
+    prep*:SunOS:5.*:*)
+	echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    *:GNU:*:*)
+	# the GNU system
+	echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`"
+	exit ;;
+    *:GNU/*:*:*)
+	# other systems with GNU libc and userland
+	echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC"
+	exit ;;
+    i*86:Minix:*:*)
+	echo "$UNAME_MACHINE"-pc-minix
+	exit ;;
+    aarch64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    aarch64_be:Linux:*:*)
+	UNAME_MACHINE=aarch64_be
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    alpha:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+	  EV5)   UNAME_MACHINE=alphaev5 ;;
+	  EV56)  UNAME_MACHINE=alphaev56 ;;
+	  PCA56) UNAME_MACHINE=alphapca56 ;;
+	  PCA57) UNAME_MACHINE=alphapca56 ;;
+	  EV6)   UNAME_MACHINE=alphaev6 ;;
+	  EV67)  UNAME_MACHINE=alphaev67 ;;
+	  EV68*) UNAME_MACHINE=alphaev68 ;;
+	esac
+	objdump --private-headers /bin/sh | grep -q ld.so.1
+	if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    arc:Linux:*:* | arceb:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    arm*:Linux:*:*)
+	eval "$set_cc_for_build"
+	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_EABI__
+	then
+	    echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	else
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi
+	    else
+		echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf
+	    fi
+	fi
+	exit ;;
+    avr32*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    cris:Linux:*:*)
+	echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
+	exit ;;
+    crisv32:Linux:*:*)
+	echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
+	exit ;;
+    e2k:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    frv:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    hexagon:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    i*86:Linux:*:*)
+	echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
+	exit ;;
+    ia64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    k1om:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    m32r*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    m68*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    mips:Linux:*:* | mips64:Linux:*:*)
+	eval "$set_cc_for_build"
+	sed 's/^	//' << EOF > "$dummy.c"
+	#undef CPU
+	#undef ${UNAME_MACHINE}
+	#undef ${UNAME_MACHINE}el
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=${UNAME_MACHINE}el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=${UNAME_MACHINE}
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
+	test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
+	;;
+    mips64el:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    openrisc*:Linux:*:*)
+	echo or1k-unknown-linux-"$LIBC"
+	exit ;;
+    or32:Linux:*:* | or1k*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    padre:Linux:*:*)
+	echo sparc-unknown-linux-"$LIBC"
+	exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-"$LIBC"
+	exit ;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+	# Look for CPU level
+	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+	  PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;;
+	  PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;;
+	  *)    echo hppa-unknown-linux-"$LIBC" ;;
+	esac
+	exit ;;
+    ppc64:Linux:*:*)
+	echo powerpc64-unknown-linux-"$LIBC"
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-"$LIBC"
+	exit ;;
+    ppc64le:Linux:*:*)
+	echo powerpc64le-unknown-linux-"$LIBC"
+	exit ;;
+    ppcle:Linux:*:*)
+	echo powerpcle-unknown-linux-"$LIBC"
+	exit ;;
+    riscv32:Linux:*:* | riscv64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+	echo "$UNAME_MACHINE"-ibm-linux-"$LIBC"
+	exit ;;
+    sh64*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    sh*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    tile*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    vax:Linux:*:*)
+	echo "$UNAME_MACHINE"-dec-linux-"$LIBC"
+	exit ;;
+    x86_64:Linux:*:*)
+	if objdump -f /bin/sh | grep -q elf32-x86-64; then
+	    echo "$UNAME_MACHINE"-pc-linux-"$LIBC"x32
+	else
+	    echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
+	fi
+	exit ;;
+    xtensa*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    i*86:DYNIX/ptx:4*:*)
+	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+	# earlier versions are messed up and put the nodename in both
+	# sysname and nodename.
+	echo i386-sequent-sysv4
+	exit ;;
+    i*86:UNIX_SV:4.2MP:2.*)
+	# Unixware is an offshoot of SVR4, but it has its own version
+	# number series starting with 2...
+	# I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+	# Use sysv4.2uw... so that sysv4* matches it.
+	echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION"
+	exit ;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	echo "$UNAME_MACHINE"-pc-os2-emx
+	exit ;;
+    i*86:XTS-300:*:STOP)
+	echo "$UNAME_MACHINE"-unknown-stop
+	exit ;;
+    i*86:atheos:*:*)
+	echo "$UNAME_MACHINE"-unknown-atheos
+	exit ;;
+    i*86:syllable:*:*)
+	echo "$UNAME_MACHINE"-pc-syllable
+	exit ;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
+	echo i386-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    i*86:*DOS:*:*)
+	echo "$UNAME_MACHINE"-pc-msdosdjgpp
+	exit ;;
+    i*86:*:4.*:*)
+	UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'`
+	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+		echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL"
+	else
+		echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL"
+	fi
+	exit ;;
+    i*86:*:5:[678]*)
+	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	case `/bin/uname -X | grep "^Machine"` in
+	    *486*)	     UNAME_MACHINE=i486 ;;
+	    *Pentium)	     UNAME_MACHINE=i586 ;;
+	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+	esac
+	echo "$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}{$UNAME_VERSION}"
+	exit ;;
+    i*86:*:3.2:*)
+	if test -f /usr/options/cb.name; then
+		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+		echo "$UNAME_MACHINE"-pc-isc"$UNAME_REL"
+	elif /bin/uname -X 2>/dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+			&& UNAME_MACHINE=i586
+		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL"
+	else
+		echo "$UNAME_MACHINE"-pc-sysv32
+	fi
+	exit ;;
+    pc:*:*:*)
+	# Left here for compatibility:
+	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+	# the processor, so we play safe by assuming i586.
+	# Note: whatever this is, it MUST be the same as what config.sub
+	# prints for the "djgpp" host, or else GDB configure will decide that
+	# this is a cross-build.
+	echo i586-pc-msdosdjgpp
+	exit ;;
+    Intel:Mach:3*:*)
+	echo i386-pc-mach3
+	exit ;;
+    paragon:*:*:*)
+	echo i860-intel-osf1
+	exit ;;
+    i860:*:4.*:*) # i860-SVR4
+	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+	  echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4
+	else # Add other i860-SVR4 vendors below as they are discovered.
+	  echo i860-unknown-sysv"$UNAME_RELEASE"  # Unknown i860-SVR4
+	fi
+	exit ;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	echo m68010-convergent-sysv
+	exit ;;
+    mc68k:UNIX:SYSTEM5:3.51m)
+	echo m68k-convergent-sysv
+	exit ;;
+    M680?0:D-NIX:5.3:*)
+	echo m68k-diab-dnix
+	exit ;;
+    M68*:*:R3V[5678]*:*)
+	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+	OS_REL=''
+	test -r /etc/.relid \
+	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	  && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4; exit; } ;;
+    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
+	OS_REL='.3'
+	test -r /etc/.relid \
+	    && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	    && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	    && { echo i586-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
+	    && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+	echo m68k-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    mc68030:UNIX_System_V:4.*:*)
+	echo m68k-atari-sysv4
+	exit ;;
+    TSUNAMI:LynxOS:2.*:*)
+	echo sparc-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    rs6000:LynxOS:2.*:*)
+	echo rs6000-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
+	echo powerpc-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    SM[BE]S:UNIX_SV:*:*)
+	echo mips-dde-sysv"$UNAME_RELEASE"
+	exit ;;
+    RM*:ReliantUNIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    RM*:SINIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    *:SINIX-*:*:*)
+	if uname -p 2>/dev/null >/dev/null ; then
+		UNAME_MACHINE=`(uname -p) 2>/dev/null`
+		echo "$UNAME_MACHINE"-sni-sysv4
+	else
+		echo ns32k-sni-sysv
+	fi
+	exit ;;
+    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+			# says <Richard.M.Bartel@ccMail.Census.GOV>
+	echo i586-unisys-sysv4
+	exit ;;
+    *:UNIX_System_V:4*:FTX*)
+	# From Gerald Hewes <hewes@openmarket.com>.
+	# How about differentiating between stratus architectures? -djm
+	echo hppa1.1-stratus-sysv4
+	exit ;;
+    *:*:*:FTX*)
+	# From seanf@swdc.stratus.com.
+	echo i860-stratus-sysv4
+	exit ;;
+    i*86:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo "$UNAME_MACHINE"-stratus-vos
+	exit ;;
+    *:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo hppa1.1-stratus-vos
+	exit ;;
+    mc68*:A/UX:*:*)
+	echo m68k-apple-aux"$UNAME_RELEASE"
+	exit ;;
+    news*:NEWS-OS:6*:*)
+	echo mips-sony-newsos6
+	exit ;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+	if [ -d /usr/nec ]; then
+		echo mips-nec-sysv"$UNAME_RELEASE"
+	else
+		echo mips-unknown-sysv"$UNAME_RELEASE"
+	fi
+	exit ;;
+    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
+	echo powerpc-be-beos
+	exit ;;
+    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
+	echo powerpc-apple-beos
+	exit ;;
+    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
+	echo i586-pc-beos
+	exit ;;
+    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
+	echo i586-pc-haiku
+	exit ;;
+    x86_64:Haiku:*:*)
+	echo x86_64-unknown-haiku
+	exit ;;
+    SX-4:SUPER-UX:*:*)
+	echo sx4-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-5:SUPER-UX:*:*)
+	echo sx5-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-6:SUPER-UX:*:*)
+	echo sx6-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-7:SUPER-UX:*:*)
+	echo sx7-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-8:SUPER-UX:*:*)
+	echo sx8-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-8R:SUPER-UX:*:*)
+	echo sx8r-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-ACE:SUPER-UX:*:*)
+	echo sxace-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    Power*:Rhapsody:*:*)
+	echo powerpc-apple-rhapsody"$UNAME_RELEASE"
+	exit ;;
+    *:Rhapsody:*:*)
+	echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE"
+	exit ;;
+    *:Darwin:*:*)
+	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+	eval "$set_cc_for_build"
+	if test "$UNAME_PROCESSOR" = unknown ; then
+	    UNAME_PROCESSOR=powerpc
+	fi
+	if test "`echo "$UNAME_RELEASE" | sed -e 's/\..*//'`" -le 10 ; then
+	    if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		       (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		       grep IS_64BIT_ARCH >/dev/null
+		then
+		    case $UNAME_PROCESSOR in
+			i386) UNAME_PROCESSOR=x86_64 ;;
+			powerpc) UNAME_PROCESSOR=powerpc64 ;;
+		    esac
+		fi
+		# On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc
+		if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \
+		       (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		       grep IS_PPC >/dev/null
+		then
+		    UNAME_PROCESSOR=powerpc
+		fi
+	    fi
+	elif test "$UNAME_PROCESSOR" = i386 ; then
+	    # Avoid executing cc on OS X 10.9, as it ships with a stub
+	    # that puts up a graphical alert prompting to install
+	    # developer tools.  Any system running Mac OS X 10.7 or
+	    # later (Darwin 11 and later) is required to have a 64-bit
+	    # processor. This is not true of the ARM version of Darwin
+	    # that Apple uses in portable devices.
+	    UNAME_PROCESSOR=x86_64
+	fi
+	echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE"
+	exit ;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+	UNAME_PROCESSOR=`uname -p`
+	if test "$UNAME_PROCESSOR" = x86; then
+		UNAME_PROCESSOR=i386
+		UNAME_MACHINE=pc
+	fi
+	echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE"
+	exit ;;
+    *:QNX:*:4*)
+	echo i386-pc-qnx
+	exit ;;
+    NEO-*:NONSTOP_KERNEL:*:*)
+	echo neo-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSE-*:NONSTOP_KERNEL:*:*)
+	echo nse-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSR-*:NONSTOP_KERNEL:*:*)
+	echo nsr-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSV-*:NONSTOP_KERNEL:*:*)
+	echo nsv-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSX-*:NONSTOP_KERNEL:*:*)
+	echo nsx-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    *:NonStop-UX:*:*)
+	echo mips-compaq-nonstopux
+	exit ;;
+    BS2000:POSIX*:*:*)
+	echo bs2000-siemens-sysv
+	exit ;;
+    DS/*:UNIX_System_V:*:*)
+	echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE"
+	exit ;;
+    *:Plan9:*:*)
+	# "uname -m" is not consistent, so use $cputype instead. 386
+	# is converted to i386 for consistency with other x86
+	# operating systems.
+	if test "$cputype" = 386; then
+	    UNAME_MACHINE=i386
+	else
+	    UNAME_MACHINE="$cputype"
+	fi
+	echo "$UNAME_MACHINE"-unknown-plan9
+	exit ;;
+    *:TOPS-10:*:*)
+	echo pdp10-unknown-tops10
+	exit ;;
+    *:TENEX:*:*)
+	echo pdp10-unknown-tenex
+	exit ;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+	echo pdp10-dec-tops20
+	exit ;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+	echo pdp10-xkl-tops20
+	exit ;;
+    *:TOPS-20:*:*)
+	echo pdp10-unknown-tops20
+	exit ;;
+    *:ITS:*:*)
+	echo pdp10-unknown-its
+	exit ;;
+    SEI:*:*:SEIUX)
+	echo mips-sei-seiux"$UNAME_RELEASE"
+	exit ;;
+    *:DragonFly:*:*)
+	echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
+	exit ;;
+    *:*VMS:*:*)
+	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+	case "$UNAME_MACHINE" in
+	    A*) echo alpha-dec-vms ; exit ;;
+	    I*) echo ia64-dec-vms ; exit ;;
+	    V*) echo vax-dec-vms ; exit ;;
+	esac ;;
+    *:XENIX:*:SysV)
+	echo i386-pc-xenix
+	exit ;;
+    i*86:skyos:*:*)
+	echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`"
+	exit ;;
+    i*86:rdos:*:*)
+	echo "$UNAME_MACHINE"-pc-rdos
+	exit ;;
+    i*86:AROS:*:*)
+	echo "$UNAME_MACHINE"-pc-aros
+	exit ;;
+    x86_64:VMkernel:*:*)
+	echo "$UNAME_MACHINE"-unknown-esx
+	exit ;;
+    amd64:Isilon\ OneFS:*:*)
+	echo x86_64-unknown-onefs
+	exit ;;
+esac
+
+echo "$0: unable to guess system type" >&2
+
+case "$UNAME_MACHINE:$UNAME_SYSTEM" in
+    mips:Linux | mips64:Linux)
+	# If we got here on MIPS GNU/Linux, output extra information.
+	cat >&2 <<EOF
+
+NOTE: MIPS GNU/Linux systems require a C compiler to fully recognize
+the system type. Please install a C compiler and try again.
+EOF
+	;;
+esac
+
+cat >&2 <<EOF
+
+This script (version $timestamp), has failed to recognize the
+operating system you are using. If your script is old, overwrite *all*
+copies of config.guess and config.sub with the latest versions from:
+
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+and
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+
+If $0 has already been updated, send the following data and any
+information you think might be pertinent to config-patches@gnu.org to
+provide the necessary information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = "$UNAME_MACHINE"
+UNAME_RELEASE = "$UNAME_RELEASE"
+UNAME_SYSTEM  = "$UNAME_SYSTEM"
+UNAME_VERSION = "$UNAME_VERSION"
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-functions 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/config.sub b/config.sub
new file mode 100755
index 0000000..1d8e98b
--- /dev/null
+++ b/config.sub
@@ -0,0 +1,1801 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
+
+timestamp='2018-02-22'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+
+
+# Please send patches to <config-patches@gnu.org>.
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# You can get the latest version of this script from:
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
+
+Canonicalize a configuration name.
+
+Options:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright 1992-2018 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo "$1"
+       exit ;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
+# Here we must recognize all the valid KERNEL-OS combinations.
+maybe_os=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+case $maybe_os in
+  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
+  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
+  kopensolaris*-gnu* | cloudabi*-eabi* | \
+  storm-chaos* | os2-emx* | rtmk-nova*)
+    os=-$maybe_os
+    basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    ;;
+  android-linux)
+    os=-linux-android
+    basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    ;;
+  *)
+    basic_machine=`echo "$1" | sed 's/-[^-]*$//'`
+    if [ "$basic_machine" != "$1" ]
+    then os=`echo "$1" | sed 's/.*-/-/'`
+    else os=; fi
+    ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work.  We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+	-sun*os*)
+		# Prevent following clause from handling this invalid input.
+		;;
+	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+	-apple | -axis | -knuth | -cray | -microblaze*)
+		os=
+		basic_machine=$1
+		;;
+	-bluegene*)
+		os=-cnk
+		;;
+	-sim | -cisco | -oki | -wec | -winbond)
+		os=
+		basic_machine=$1
+		;;
+	-scout)
+		;;
+	-wrs)
+		os=-vxworks
+		basic_machine=$1
+		;;
+	-chorusos*)
+		os=-chorusos
+		basic_machine=$1
+		;;
+	-chorusrdb)
+		os=-chorusrdb
+		basic_machine=$1
+		;;
+	-hiux*)
+		os=-hiuxwe2
+		;;
+	-sco6)
+		os=-sco5v6
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5)
+		os=-sco3.2v5
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco4)
+		os=-sco3.2v4
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2.[4-9]*)
+		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2v[4-9]*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5v6*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco*)
+		os=-sco3.2v2
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-udk*)
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-isc)
+		os=-isc2.2
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-clix*)
+		basic_machine=clipper-intergraph
+		;;
+	-isc*)
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-lynx*178)
+		os=-lynxos178
+		;;
+	-lynx*5)
+		os=-lynxos5
+		;;
+	-lynx*)
+		os=-lynxos
+		;;
+	-ptx*)
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-sequent/'`
+		;;
+	-psos*)
+		os=-psos
+		;;
+	-mint | -mint[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+	# Recognize the basic CPU types without company name.
+	# Some are omitted here because they have special meanings below.
+	1750a | 580 \
+	| a29k \
+	| aarch64 | aarch64_be \
+	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+	| am33_2.0 \
+	| arc | arceb \
+	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
+	| avr | avr32 \
+	| ba \
+	| be32 | be64 \
+	| bfin \
+	| c4x | c8051 | clipper \
+	| d10v | d30v | dlx | dsp16xx \
+	| e2k | epiphany \
+	| fido | fr30 | frv | ft32 \
+	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| hexagon \
+	| i370 | i860 | i960 | ia16 | ia64 \
+	| ip2k | iq2000 \
+	| k1om \
+	| le32 | le64 \
+	| lm32 \
+	| m32c | m32r | m32rle | m68000 | m68k | m88k \
+	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
+	| mips | mipsbe | mipseb | mipsel | mipsle \
+	| mips16 \
+	| mips64 | mips64el \
+	| mips64octeon | mips64octeonel \
+	| mips64orion | mips64orionel \
+	| mips64r5900 | mips64r5900el \
+	| mips64vr | mips64vrel \
+	| mips64vr4100 | mips64vr4100el \
+	| mips64vr4300 | mips64vr4300el \
+	| mips64vr5000 | mips64vr5000el \
+	| mips64vr5900 | mips64vr5900el \
+	| mipsisa32 | mipsisa32el \
+	| mipsisa32r2 | mipsisa32r2el \
+	| mipsisa32r6 | mipsisa32r6el \
+	| mipsisa64 | mipsisa64el \
+	| mipsisa64r2 | mipsisa64r2el \
+	| mipsisa64r6 | mipsisa64r6el \
+	| mipsisa64sb1 | mipsisa64sb1el \
+	| mipsisa64sr71k | mipsisa64sr71kel \
+	| mipsr5900 | mipsr5900el \
+	| mipstx39 | mipstx39el \
+	| mn10200 | mn10300 \
+	| moxie \
+	| mt \
+	| msp430 \
+	| nds32 | nds32le | nds32be \
+	| nios | nios2 | nios2eb | nios2el \
+	| ns16k | ns32k \
+	| open8 | or1k | or1knd | or32 \
+	| pdp10 | pj | pjl \
+	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| pru \
+	| pyramid \
+	| riscv32 | riscv64 \
+	| rl78 | rx \
+	| score \
+	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh64 | sh64le \
+	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
+	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
+	| spu \
+	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+	| ubicom32 \
+	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+	| visium \
+	| wasm32 \
+	| x86 | xc16x | xstormy16 | xtensa \
+	| z8k | z80)
+		basic_machine=$basic_machine-unknown
+		;;
+	c54x)
+		basic_machine=tic54x-unknown
+		;;
+	c55x)
+		basic_machine=tic55x-unknown
+		;;
+	c6x)
+		basic_machine=tic6x-unknown
+		;;
+	leon|leon[3-9])
+		basic_machine=sparc-$basic_machine
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65)
+		;;
+	ms1)
+		basic_machine=mt-unknown
+		;;
+
+	strongarm | thumb | xscale)
+		basic_machine=arm-unknown
+		;;
+	xgate)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	xscaleeb)
+		basic_machine=armeb-unknown
+		;;
+
+	xscaleel)
+		basic_machine=armel-unknown
+		;;
+
+	# We use `pc' rather than `unknown'
+	# because (1) that's what they normally are, and
+	# (2) the word "unknown" tends to confuse beginning users.
+	i*86 | x86_64)
+	  basic_machine=$basic_machine-pc
+	  ;;
+	# Object if more than one company name word.
+	*-*-*)
+		echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
+		exit 1
+		;;
+	# Recognize the basic CPU types with company name.
+	580-* \
+	| a29k-* \
+	| aarch64-* | aarch64_be-* \
+	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
+	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+	| avr-* | avr32-* \
+	| ba-* \
+	| be32-* | be64-* \
+	| bfin-* | bs2000-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* \
+	| c8051-* | clipper-* | craynv-* | cydra-* \
+	| d10v-* | d30v-* | dlx-* \
+	| e2k-* | elxsi-* \
+	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+	| h8300-* | h8500-* \
+	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| hexagon-* \
+	| i*86-* | i860-* | i960-* | ia16-* | ia64-* \
+	| ip2k-* | iq2000-* \
+	| k1om-* \
+	| le32-* | le64-* \
+	| lm32-* \
+	| m32c-* | m32r-* | m32rle-* \
+	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+	| microblaze-* | microblazeel-* \
+	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+	| mips16-* \
+	| mips64-* | mips64el-* \
+	| mips64octeon-* | mips64octeonel-* \
+	| mips64orion-* | mips64orionel-* \
+	| mips64r5900-* | mips64r5900el-* \
+	| mips64vr-* | mips64vrel-* \
+	| mips64vr4100-* | mips64vr4100el-* \
+	| mips64vr4300-* | mips64vr4300el-* \
+	| mips64vr5000-* | mips64vr5000el-* \
+	| mips64vr5900-* | mips64vr5900el-* \
+	| mipsisa32-* | mipsisa32el-* \
+	| mipsisa32r2-* | mipsisa32r2el-* \
+	| mipsisa32r6-* | mipsisa32r6el-* \
+	| mipsisa64-* | mipsisa64el-* \
+	| mipsisa64r2-* | mipsisa64r2el-* \
+	| mipsisa64r6-* | mipsisa64r6el-* \
+	| mipsisa64sb1-* | mipsisa64sb1el-* \
+	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+	| mipsr5900-* | mipsr5900el-* \
+	| mipstx39-* | mipstx39el-* \
+	| mmix-* \
+	| mt-* \
+	| msp430-* \
+	| nds32-* | nds32le-* | nds32be-* \
+	| nios-* | nios2-* | nios2eb-* | nios2el-* \
+	| none-* | np1-* | ns16k-* | ns32k-* \
+	| open8-* \
+	| or1k*-* \
+	| orion-* \
+	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| pru-* \
+	| pyramid-* \
+	| riscv32-* | riscv64-* \
+	| rl78-* | romp-* | rs6000-* | rx-* \
+	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
+	| sparclite-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \
+	| tahoe-* \
+	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+	| tile*-* \
+	| tron-* \
+	| ubicom32-* \
+	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+	| vax-* \
+	| visium-* \
+	| wasm32-* \
+	| we32k-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* \
+	| xstormy16-* | xtensa*-* \
+	| ymp-* \
+	| z8k-* | z80-*)
+		;;
+	# Recognize the basic CPU types without company name, with glob match.
+	xtensa*)
+		basic_machine=$basic_machine-unknown
+		;;
+	# Recognize the various machine names and aliases which stand
+	# for a CPU type and a company and sometimes even an OS.
+	386bsd)
+		basic_machine=i386-pc
+		os=-bsd
+		;;
+	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+		basic_machine=m68000-att
+		;;
+	3b*)
+		basic_machine=we32k-att
+		;;
+	a29khif)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	abacus)
+		basic_machine=abacus-unknown
+		;;
+	adobe68k)
+		basic_machine=m68010-adobe
+		os=-scout
+		;;
+	alliant | fx80)
+		basic_machine=fx80-alliant
+		;;
+	altos | altos3068)
+		basic_machine=m68k-altos
+		;;
+	am29k)
+		basic_machine=a29k-none
+		os=-bsd
+		;;
+	amd64)
+		basic_machine=x86_64-pc
+		;;
+	amd64-*)
+		basic_machine=x86_64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	amdahl)
+		basic_machine=580-amdahl
+		os=-sysv
+		;;
+	amiga | amiga-*)
+		basic_machine=m68k-unknown
+		;;
+	amigaos | amigados)
+		basic_machine=m68k-unknown
+		os=-amigaos
+		;;
+	amigaunix | amix)
+		basic_machine=m68k-unknown
+		os=-sysv4
+		;;
+	apollo68)
+		basic_machine=m68k-apollo
+		os=-sysv
+		;;
+	apollo68bsd)
+		basic_machine=m68k-apollo
+		os=-bsd
+		;;
+	aros)
+		basic_machine=i386-pc
+		os=-aros
+		;;
+	asmjs)
+		basic_machine=asmjs-unknown
+		;;
+	aux)
+		basic_machine=m68k-apple
+		os=-aux
+		;;
+	balance)
+		basic_machine=ns32k-sequent
+		os=-dynix
+		;;
+	blackfin)
+		basic_machine=bfin-unknown
+		os=-linux
+		;;
+	blackfin-*)
+		basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	bluegene*)
+		basic_machine=powerpc-ibm
+		os=-cnk
+		;;
+	c54x-*)
+		basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	c55x-*)
+		basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	c6x-*)
+		basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	c90)
+		basic_machine=c90-cray
+		os=-unicos
+		;;
+	cegcc)
+		basic_machine=arm-unknown
+		os=-cegcc
+		;;
+	convex-c1)
+		basic_machine=c1-convex
+		os=-bsd
+		;;
+	convex-c2)
+		basic_machine=c2-convex
+		os=-bsd
+		;;
+	convex-c32)
+		basic_machine=c32-convex
+		os=-bsd
+		;;
+	convex-c34)
+		basic_machine=c34-convex
+		os=-bsd
+		;;
+	convex-c38)
+		basic_machine=c38-convex
+		os=-bsd
+		;;
+	cray | j90)
+		basic_machine=j90-cray
+		os=-unicos
+		;;
+	craynv)
+		basic_machine=craynv-cray
+		os=-unicosmp
+		;;
+	cr16 | cr16-*)
+		basic_machine=cr16-unknown
+		os=-elf
+		;;
+	crds | unos)
+		basic_machine=m68k-crds
+		;;
+	crisv32 | crisv32-* | etraxfs*)
+		basic_machine=crisv32-axis
+		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
+	crx)
+		basic_machine=crx-unknown
+		os=-elf
+		;;
+	da30 | da30-*)
+		basic_machine=m68k-da30
+		;;
+	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+		basic_machine=mips-dec
+		;;
+	decsystem10* | dec10*)
+		basic_machine=pdp10-dec
+		os=-tops10
+		;;
+	decsystem20* | dec20*)
+		basic_machine=pdp10-dec
+		os=-tops20
+		;;
+	delta | 3300 | motorola-3300 | motorola-delta \
+	      | 3300-motorola | delta-motorola)
+		basic_machine=m68k-motorola
+		;;
+	delta88)
+		basic_machine=m88k-motorola
+		os=-sysv3
+		;;
+	dicos)
+		basic_machine=i686-pc
+		os=-dicos
+		;;
+	djgpp)
+		basic_machine=i586-pc
+		os=-msdosdjgpp
+		;;
+	dpx20 | dpx20-*)
+		basic_machine=rs6000-bull
+		os=-bosx
+		;;
+	dpx2*)
+		basic_machine=m68k-bull
+		os=-sysv3
+		;;
+	e500v[12])
+		basic_machine=powerpc-unknown
+		os=$os"spe"
+		;;
+	e500v[12]-*)
+		basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		os=$os"spe"
+		;;
+	ebmon29k)
+		basic_machine=a29k-amd
+		os=-ebmon
+		;;
+	elxsi)
+		basic_machine=elxsi-elxsi
+		os=-bsd
+		;;
+	encore | umax | mmax)
+		basic_machine=ns32k-encore
+		;;
+	es1800 | OSE68k | ose68k | ose | OSE)
+		basic_machine=m68k-ericsson
+		os=-ose
+		;;
+	fx2800)
+		basic_machine=i860-alliant
+		;;
+	genix)
+		basic_machine=ns32k-ns
+		;;
+	gmicro)
+		basic_machine=tron-gmicro
+		os=-sysv
+		;;
+	go32)
+		basic_machine=i386-pc
+		os=-go32
+		;;
+	h3050r* | hiux*)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	h8300hms)
+		basic_machine=h8300-hitachi
+		os=-hms
+		;;
+	h8300xray)
+		basic_machine=h8300-hitachi
+		os=-xray
+		;;
+	h8500hms)
+		basic_machine=h8500-hitachi
+		os=-hms
+		;;
+	harris)
+		basic_machine=m88k-harris
+		os=-sysv3
+		;;
+	hp300-*)
+		basic_machine=m68k-hp
+		;;
+	hp300bsd)
+		basic_machine=m68k-hp
+		os=-bsd
+		;;
+	hp300hpux)
+		basic_machine=m68k-hp
+		os=-hpux
+		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k2[0-9][0-9] | hp9k31[0-9])
+		basic_machine=m68000-hp
+		;;
+	hp9k3[2-9][0-9])
+		basic_machine=m68k-hp
+		;;
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][0-9] | hp8[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hppaosf)
+		basic_machine=hppa1.1-hp
+		os=-osf
+		;;
+	hppro)
+		basic_machine=hppa1.1-hp
+		os=-proelf
+		;;
+	i370-ibm* | ibm*)
+		basic_machine=i370-ibm
+		;;
+	i*86v32)
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+		os=-sysv32
+		;;
+	i*86v4*)
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+		os=-sysv4
+		;;
+	i*86v)
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+		os=-sysv
+		;;
+	i*86sol2)
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+		os=-solaris2
+		;;
+	i386mach)
+		basic_machine=i386-mach
+		os=-mach
+		;;
+	vsta)
+		basic_machine=i386-unknown
+		os=-vsta
+		;;
+	iris | iris4d)
+		basic_machine=mips-sgi
+		case $os in
+		    -irix*)
+			;;
+		    *)
+			os=-irix4
+			;;
+		esac
+		;;
+	isi68 | isi)
+		basic_machine=m68k-isi
+		os=-sysv
+		;;
+	leon-*|leon[3-9]-*)
+		basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'`
+		;;
+	m68knommu)
+		basic_machine=m68k-unknown
+		os=-linux
+		;;
+	m68knommu-*)
+		basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	magnum | m3230)
+		basic_machine=mips-mips
+		os=-sysv
+		;;
+	merlin)
+		basic_machine=ns32k-utek
+		os=-sysv
+		;;
+	microblaze*)
+		basic_machine=microblaze-xilinx
+		;;
+	mingw64)
+		basic_machine=x86_64-pc
+		os=-mingw64
+		;;
+	mingw32)
+		basic_machine=i686-pc
+		os=-mingw32
+		;;
+	mingw32ce)
+		basic_machine=arm-unknown
+		os=-mingw32ce
+		;;
+	miniframe)
+		basic_machine=m68000-convergent
+		;;
+	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+	mips3*-*)
+		basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`
+		;;
+	mips3*)
+		basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`-unknown
+		;;
+	monitor)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	morphos)
+		basic_machine=powerpc-unknown
+		os=-morphos
+		;;
+	moxiebox)
+		basic_machine=moxie-unknown
+		os=-moxiebox
+		;;
+	msdos)
+		basic_machine=i386-pc
+		os=-msdos
+		;;
+	ms1-*)
+		basic_machine=`echo "$basic_machine" | sed -e 's/ms1-/mt-/'`
+		;;
+	msys)
+		basic_machine=i686-pc
+		os=-msys
+		;;
+	mvs)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
+	nacl)
+		basic_machine=le32-unknown
+		os=-nacl
+		;;
+	ncr3000)
+		basic_machine=i486-ncr
+		os=-sysv4
+		;;
+	netbsd386)
+		basic_machine=i386-unknown
+		os=-netbsd
+		;;
+	netwinder)
+		basic_machine=armv4l-rebel
+		os=-linux
+		;;
+	news | news700 | news800 | news900)
+		basic_machine=m68k-sony
+		os=-newsos
+		;;
+	news1000)
+		basic_machine=m68030-sony
+		os=-newsos
+		;;
+	news-3600 | risc-news)
+		basic_machine=mips-sony
+		os=-newsos
+		;;
+	necv70)
+		basic_machine=v70-nec
+		os=-sysv
+		;;
+	next | m*-next)
+		basic_machine=m68k-next
+		case $os in
+		    -nextstep* )
+			;;
+		    -ns2*)
+		      os=-nextstep2
+			;;
+		    *)
+		      os=-nextstep3
+			;;
+		esac
+		;;
+	nh3000)
+		basic_machine=m68k-harris
+		os=-cxux
+		;;
+	nh[45]000)
+		basic_machine=m88k-harris
+		os=-cxux
+		;;
+	nindy960)
+		basic_machine=i960-intel
+		os=-nindy
+		;;
+	mon960)
+		basic_machine=i960-intel
+		os=-mon960
+		;;
+	nonstopux)
+		basic_machine=mips-compaq
+		os=-nonstopux
+		;;
+	np1)
+		basic_machine=np1-gould
+		;;
+	neo-tandem)
+		basic_machine=neo-tandem
+		;;
+	nse-tandem)
+		basic_machine=nse-tandem
+		;;
+	nsr-tandem)
+		basic_machine=nsr-tandem
+		;;
+	nsv-tandem)
+		basic_machine=nsv-tandem
+		;;
+	nsx-tandem)
+		basic_machine=nsx-tandem
+		;;
+	op50n-* | op60c-*)
+		basic_machine=hppa1.1-oki
+		os=-proelf
+		;;
+	openrisc | openrisc-*)
+		basic_machine=or32-unknown
+		;;
+	os400)
+		basic_machine=powerpc-ibm
+		os=-os400
+		;;
+	OSE68000 | ose68000)
+		basic_machine=m68000-ericsson
+		os=-ose
+		;;
+	os68k)
+		basic_machine=m68k-none
+		os=-os68k
+		;;
+	pa-hitachi)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	paragon)
+		basic_machine=i860-intel
+		os=-osf
+		;;
+	parisc)
+		basic_machine=hppa-unknown
+		os=-linux
+		;;
+	parisc-*)
+		basic_machine=hppa-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	pbd)
+		basic_machine=sparc-tti
+		;;
+	pbb)
+		basic_machine=m68k-tti
+		;;
+	pc532 | pc532-*)
+		basic_machine=ns32k-pc532
+		;;
+	pc98)
+		basic_machine=i386-pc
+		;;
+	pc98-*)
+		basic_machine=i386-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	pentium | p5 | k5 | k6 | nexgen | viac3)
+		basic_machine=i586-pc
+		;;
+	pentiumpro | p6 | 6x86 | athlon | athlon_*)
+		basic_machine=i686-pc
+		;;
+	pentiumii | pentium2 | pentiumiii | pentium3)
+		basic_machine=i686-pc
+		;;
+	pentium4)
+		basic_machine=i786-pc
+		;;
+	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+		basic_machine=i586-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
+		basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+		basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	pentium4-*)
+		basic_machine=i786-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	pn)
+		basic_machine=pn-gould
+		;;
+	power)	basic_machine=power-ibm
+		;;
+	ppc | ppcbe)	basic_machine=powerpc-unknown
+		;;
+	ppc-* | ppcbe-*)
+		basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	ppcle | powerpclittle)
+		basic_machine=powerpcle-unknown
+		;;
+	ppcle-* | powerpclittle-*)
+		basic_machine=powerpcle-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	ppc64)	basic_machine=powerpc64-unknown
+		;;
+	ppc64-*) basic_machine=powerpc64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	ppc64le | powerpc64little)
+		basic_machine=powerpc64le-unknown
+		;;
+	ppc64le-* | powerpc64little-*)
+		basic_machine=powerpc64le-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	ps2)
+		basic_machine=i386-ibm
+		;;
+	pw32)
+		basic_machine=i586-unknown
+		os=-pw32
+		;;
+	rdos | rdos64)
+		basic_machine=x86_64-pc
+		os=-rdos
+		;;
+	rdos32)
+		basic_machine=i386-pc
+		os=-rdos
+		;;
+	rom68k)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	rm[46]00)
+		basic_machine=mips-siemens
+		;;
+	rtpc | rtpc-*)
+		basic_machine=romp-ibm
+		;;
+	s390 | s390-*)
+		basic_machine=s390-ibm
+		;;
+	s390x | s390x-*)
+		basic_machine=s390x-ibm
+		;;
+	sa29200)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	sb1)
+		basic_machine=mipsisa64sb1-unknown
+		;;
+	sb1el)
+		basic_machine=mipsisa64sb1el-unknown
+		;;
+	sde)
+		basic_machine=mipsisa32-sde
+		os=-elf
+		;;
+	sei)
+		basic_machine=mips-sei
+		os=-seiux
+		;;
+	sequent)
+		basic_machine=i386-sequent
+		;;
+	sh5el)
+		basic_machine=sh5le-unknown
+		;;
+	simso-wrs)
+		basic_machine=sparclite-wrs
+		os=-vxworks
+		;;
+	sps7)
+		basic_machine=m68k-bull
+		os=-sysv2
+		;;
+	spur)
+		basic_machine=spur-unknown
+		;;
+	st2000)
+		basic_machine=m68k-tandem
+		;;
+	stratus)
+		basic_machine=i860-stratus
+		os=-sysv4
+		;;
+	strongarm-* | thumb-*)
+		basic_machine=arm-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	sun2)
+		basic_machine=m68000-sun
+		;;
+	sun2os3)
+		basic_machine=m68000-sun
+		os=-sunos3
+		;;
+	sun2os4)
+		basic_machine=m68000-sun
+		os=-sunos4
+		;;
+	sun3os3)
+		basic_machine=m68k-sun
+		os=-sunos3
+		;;
+	sun3os4)
+		basic_machine=m68k-sun
+		os=-sunos4
+		;;
+	sun4os3)
+		basic_machine=sparc-sun
+		os=-sunos3
+		;;
+	sun4os4)
+		basic_machine=sparc-sun
+		os=-sunos4
+		;;
+	sun4sol2)
+		basic_machine=sparc-sun
+		os=-solaris2
+		;;
+	sun3 | sun3-*)
+		basic_machine=m68k-sun
+		;;
+	sun4)
+		basic_machine=sparc-sun
+		;;
+	sun386 | sun386i | roadrunner)
+		basic_machine=i386-sun
+		;;
+	sv1)
+		basic_machine=sv1-cray
+		os=-unicos
+		;;
+	symmetry)
+		basic_machine=i386-sequent
+		os=-dynix
+		;;
+	t3e)
+		basic_machine=alphaev5-cray
+		os=-unicos
+		;;
+	t90)
+		basic_machine=t90-cray
+		os=-unicos
+		;;
+	tile*)
+		basic_machine=$basic_machine-unknown
+		os=-linux-gnu
+		;;
+	tx39)
+		basic_machine=mipstx39-unknown
+		;;
+	tx39el)
+		basic_machine=mipstx39el-unknown
+		;;
+	toad1)
+		basic_machine=pdp10-xkl
+		os=-tops20
+		;;
+	tower | tower-32)
+		basic_machine=m68k-ncr
+		;;
+	tpf)
+		basic_machine=s390x-ibm
+		os=-tpf
+		;;
+	udi29k)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	ultra3)
+		basic_machine=a29k-nyu
+		os=-sym1
+		;;
+	v810 | necv810)
+		basic_machine=v810-nec
+		os=-none
+		;;
+	vaxv)
+		basic_machine=vax-dec
+		os=-sysv
+		;;
+	vms)
+		basic_machine=vax-dec
+		os=-vms
+		;;
+	vpp*|vx|vx-*)
+		basic_machine=f301-fujitsu
+		;;
+	vxworks960)
+		basic_machine=i960-wrs
+		os=-vxworks
+		;;
+	vxworks68)
+		basic_machine=m68k-wrs
+		os=-vxworks
+		;;
+	vxworks29k)
+		basic_machine=a29k-wrs
+		os=-vxworks
+		;;
+	w65*)
+		basic_machine=w65-wdc
+		os=-none
+		;;
+	w89k-*)
+		basic_machine=hppa1.1-winbond
+		os=-proelf
+		;;
+	x64)
+		basic_machine=x86_64-pc
+		;;
+	xbox)
+		basic_machine=i686-pc
+		os=-mingw32
+		;;
+	xps | xps100)
+		basic_machine=xps100-honeywell
+		;;
+	xscale-* | xscalee[bl]-*)
+		basic_machine=`echo "$basic_machine" | sed 's/^xscale/arm/'`
+		;;
+	ymp)
+		basic_machine=ymp-cray
+		os=-unicos
+		;;
+	none)
+		basic_machine=none-none
+		os=-none
+		;;
+
+# Here we handle the default manufacturer of certain CPU types.  It is in
+# some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		basic_machine=hppa1.1-winbond
+		;;
+	op50n)
+		basic_machine=hppa1.1-oki
+		;;
+	op60c)
+		basic_machine=hppa1.1-oki
+		;;
+	romp)
+		basic_machine=romp-ibm
+		;;
+	mmix)
+		basic_machine=mmix-knuth
+		;;
+	rs6000)
+		basic_machine=rs6000-ibm
+		;;
+	vax)
+		basic_machine=vax-dec
+		;;
+	pdp11)
+		basic_machine=pdp11-dec
+		;;
+	we32k)
+		basic_machine=we32k-att
+		;;
+	sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
+		basic_machine=sh-unknown
+		;;
+	cydra)
+		basic_machine=cydra-cydrome
+		;;
+	orion)
+		basic_machine=orion-highlevel
+		;;
+	orion105)
+		basic_machine=clipper-highlevel
+		;;
+	mac | mpw | mac-mpw)
+		basic_machine=m68k-apple
+		;;
+	pmac | pmac-mpw)
+		basic_machine=powerpc-apple
+		;;
+	*-unknown)
+		# Make sure to match an already-canonicalized machine name.
+		;;
+	*)
+		echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
+		exit 1
+		;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+	*-digital*)
+		basic_machine=`echo "$basic_machine" | sed 's/digital.*/dec/'`
+		;;
+	*-commodore*)
+		basic_machine=`echo "$basic_machine" | sed 's/commodore.*/cbm/'`
+		;;
+	*)
+		;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x"$os" != x"" ]
+then
+case $os in
+	# First match some system type aliases that might get confused
+	# with valid system types.
+	# -solaris* is a basic system type, with this one exception.
+	-auroraux)
+		os=-auroraux
+		;;
+	-solaris1 | -solaris1.*)
+		os=`echo $os | sed -e 's|solaris1|sunos4|'`
+		;;
+	-solaris)
+		os=-solaris2
+		;;
+	-unixware*)
+		os=-sysv4.2uw
+		;;
+	-gnu/linux*)
+		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+		;;
+	# es1800 is here to avoid being matched by es* (a different OS)
+	-es1800*)
+		os=-ose
+		;;
+	# Now accept the basic system types.
+	# The portable systems comes first.
+	# Each alternative MUST end in a * to match a version number.
+	# -sysv* is not here because it comes later, after sysvr4.
+	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
+	      | -sym* | -kopensolaris* | -plan9* \
+	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+	      | -aos* | -aros* | -cloudabi* | -sortix* \
+	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+	      | -hiux* | -knetbsd* | -mirbsd* | -netbsd* \
+	      | -bitrig* | -openbsd* | -solidbsd* | -libertybsd* \
+	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
+	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -chorusos* | -chorusrdb* | -cegcc* | -glidix* \
+	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
+	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* \
+	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
+	      | -morphos* | -superux* | -rtmk* | -windiss* \
+	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
+	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme* \
+	      | -midnightbsd*)
+	# Remember, each alternative MUST END IN *, to match a version number.
+		;;
+	-qnx*)
+		case $basic_machine in
+		    x86-* | i*86-*)
+			;;
+		    *)
+			os=-nto$os
+			;;
+		esac
+		;;
+	-nto-qnx*)
+		;;
+	-nto*)
+		os=`echo $os | sed -e 's|nto|nto-qnx|'`
+		;;
+	-sim | -xray | -os68k* | -v88r* \
+	      | -windows* | -osx | -abug | -netware* | -os9* \
+	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+		;;
+	-mac*)
+		os=`echo "$os" | sed -e 's|mac|macos|'`
+		;;
+	-linux-dietlibc)
+		os=-linux-dietlibc
+		;;
+	-linux*)
+		os=`echo $os | sed -e 's|linux|linux-gnu|'`
+		;;
+	-sunos5*)
+		os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
+		;;
+	-sunos6*)
+		os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
+		;;
+	-opened*)
+		os=-openedition
+		;;
+	-os400*)
+		os=-os400
+		;;
+	-wince*)
+		os=-wince
+		;;
+	-utek*)
+		os=-bsd
+		;;
+	-dynix*)
+		os=-bsd
+		;;
+	-acis*)
+		os=-aos
+		;;
+	-atheos*)
+		os=-atheos
+		;;
+	-syllable*)
+		os=-syllable
+		;;
+	-386bsd)
+		os=-bsd
+		;;
+	-ctix* | -uts*)
+		os=-sysv
+		;;
+	-nova*)
+		os=-rtmk-nova
+		;;
+	-ns2)
+		os=-nextstep2
+		;;
+	-nsk*)
+		os=-nsk
+		;;
+	# Preserve the version number of sinix5.
+	-sinix5.*)
+		os=`echo $os | sed -e 's|sinix|sysv|'`
+		;;
+	-sinix*)
+		os=-sysv4
+		;;
+	-tpf*)
+		os=-tpf
+		;;
+	-triton*)
+		os=-sysv3
+		;;
+	-oss*)
+		os=-sysv3
+		;;
+	-svr4*)
+		os=-sysv4
+		;;
+	-svr3)
+		os=-sysv3
+		;;
+	-sysvr4)
+		os=-sysv4
+		;;
+	# This must come after -sysvr4.
+	-sysv*)
+		;;
+	-ose*)
+		os=-ose
+		;;
+	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+		os=-mint
+		;;
+	-zvmoe)
+		os=-zvmoe
+		;;
+	-dicos*)
+		os=-dicos
+		;;
+	-pikeos*)
+		# Until real need of OS specific support for
+		# particular features comes up, bare metal
+		# configurations are quite functional.
+		case $basic_machine in
+		    arm*)
+			os=-eabi
+			;;
+		    *)
+			os=-elf
+			;;
+		esac
+		;;
+	-nacl*)
+		;;
+	-ios)
+		;;
+	-none)
+		;;
+	*)
+		# Get rid of the `-' at the beginning of $os.
+		os=`echo $os | sed 's/[^-]*-//'`
+		echo Invalid configuration \`"$1"\': system \`"$os"\' not recognized 1>&2
+		exit 1
+		;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system.  Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+	score-*)
+		os=-elf
+		;;
+	spu-*)
+		os=-elf
+		;;
+	*-acorn)
+		os=-riscix1.2
+		;;
+	arm*-rebel)
+		os=-linux
+		;;
+	arm*-semi)
+		os=-aout
+		;;
+	c4x-* | tic4x-*)
+		os=-coff
+		;;
+	c8051-*)
+		os=-elf
+		;;
+	hexagon-*)
+		os=-elf
+		;;
+	tic54x-*)
+		os=-coff
+		;;
+	tic55x-*)
+		os=-coff
+		;;
+	tic6x-*)
+		os=-coff
+		;;
+	# This must come before the *-dec entry.
+	pdp10-*)
+		os=-tops20
+		;;
+	pdp11-*)
+		os=-none
+		;;
+	*-dec | vax-*)
+		os=-ultrix4.2
+		;;
+	m68*-apollo)
+		os=-domain
+		;;
+	i386-sun)
+		os=-sunos4.0.2
+		;;
+	m68000-sun)
+		os=-sunos3
+		;;
+	m68*-cisco)
+		os=-aout
+		;;
+	mep-*)
+		os=-elf
+		;;
+	mips*-cisco)
+		os=-elf
+		;;
+	mips*-*)
+		os=-elf
+		;;
+	or32-*)
+		os=-coff
+		;;
+	*-tti)	# must be before sparc entry or we get the wrong os.
+		os=-sysv3
+		;;
+	sparc-* | *-sun)
+		os=-sunos4.1.1
+		;;
+	pru-*)
+		os=-elf
+		;;
+	*-be)
+		os=-beos
+		;;
+	*-ibm)
+		os=-aix
+		;;
+	*-knuth)
+		os=-mmixware
+		;;
+	*-wec)
+		os=-proelf
+		;;
+	*-winbond)
+		os=-proelf
+		;;
+	*-oki)
+		os=-proelf
+		;;
+	*-hp)
+		os=-hpux
+		;;
+	*-hitachi)
+		os=-hiux
+		;;
+	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+		os=-sysv
+		;;
+	*-cbm)
+		os=-amigaos
+		;;
+	*-dg)
+		os=-dgux
+		;;
+	*-dolphin)
+		os=-sysv3
+		;;
+	m68k-ccur)
+		os=-rtu
+		;;
+	m88k-omron*)
+		os=-luna
+		;;
+	*-next)
+		os=-nextstep
+		;;
+	*-sequent)
+		os=-ptx
+		;;
+	*-crds)
+		os=-unos
+		;;
+	*-ns)
+		os=-genix
+		;;
+	i370-*)
+		os=-mvs
+		;;
+	*-gould)
+		os=-sysv
+		;;
+	*-highlevel)
+		os=-bsd
+		;;
+	*-encore)
+		os=-bsd
+		;;
+	*-sgi)
+		os=-irix
+		;;
+	*-siemens)
+		os=-sysv4
+		;;
+	*-masscomp)
+		os=-rtu
+		;;
+	f30[01]-fujitsu | f700-fujitsu)
+		os=-uxpv
+		;;
+	*-rom68k)
+		os=-coff
+		;;
+	*-*bug)
+		os=-coff
+		;;
+	*-apple)
+		os=-macos
+		;;
+	*-atari*)
+		os=-mint
+		;;
+	*)
+		os=-none
+		;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+	*-unknown)
+		case $os in
+			-riscix*)
+				vendor=acorn
+				;;
+			-sunos*)
+				vendor=sun
+				;;
+			-cnk*|-aix*)
+				vendor=ibm
+				;;
+			-beos*)
+				vendor=be
+				;;
+			-hpux*)
+				vendor=hp
+				;;
+			-mpeix*)
+				vendor=hp
+				;;
+			-hiux*)
+				vendor=hitachi
+				;;
+			-unos*)
+				vendor=crds
+				;;
+			-dgux*)
+				vendor=dg
+				;;
+			-luna*)
+				vendor=omron
+				;;
+			-genix*)
+				vendor=ns
+				;;
+			-mvs* | -opened*)
+				vendor=ibm
+				;;
+			-os400*)
+				vendor=ibm
+				;;
+			-ptx*)
+				vendor=sequent
+				;;
+			-tpf*)
+				vendor=ibm
+				;;
+			-vxsim* | -vxworks* | -windiss*)
+				vendor=wrs
+				;;
+			-aux*)
+				vendor=apple
+				;;
+			-hms*)
+				vendor=hitachi
+				;;
+			-mpw* | -macos*)
+				vendor=apple
+				;;
+			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+				vendor=atari
+				;;
+			-vos*)
+				vendor=stratus
+				;;
+		esac
+		basic_machine=`echo "$basic_machine" | sed "s/unknown/$vendor/"`
+		;;
+esac
+
+echo "$basic_machine$os"
+exit
+
+# Local variables:
+# eval: (add-hook 'write-file-functions 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/configure b/configure
new file mode 100755
index 0000000..dbaf2c6
--- /dev/null
+++ b/configure
@@ -0,0 +1,7395 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.69 for ocaml-duppy 0.8.0.
+#
+# Report bugs to <savonet-users@lists.sourceforge.net>.
+#
+#
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+      if test "x$CONFIG_SHELL" != x; then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org and
+$0: savonet-users@lists.sourceforge.net about your system,
+$0: including any error possibly output before this
+$0: message. Then install a modern shell, or manually run
+$0: the script under such a shell if you do have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+as_awk_strverscmp='
+  # Use only awk features that work with 7th edition Unix awk (1978).
+  # My, what an old awk you have, Mr. Solaris!
+  END {
+    while (length(v1) && length(v2)) {
+      # Set d1 to be the next thing to compare from v1, and likewise for d2.
+      # Normally this is a single character, but if v1 and v2 contain digits,
+      # compare them as integers and fractions as strverscmp does.
+      if (v1 ~ /^[0-9]/ && v2 ~ /^[0-9]/) {
+	# Split v1 and v2 into their leading digit string components d1 and d2,
+	# and advance v1 and v2 past the leading digit strings.
+	for (len1 = 1; substr(v1, len1 + 1) ~ /^[0-9]/; len1++) continue
+	for (len2 = 1; substr(v2, len2 + 1) ~ /^[0-9]/; len2++) continue
+	d1 = substr(v1, 1, len1); v1 = substr(v1, len1 + 1)
+	d2 = substr(v2, 1, len2); v2 = substr(v2, len2 + 1)
+	if (d1 ~ /^0/) {
+	  if (d2 ~ /^0/) {
+	    # Compare two fractions.
+	    while (d1 ~ /^0/ && d2 ~ /^0/) {
+	      d1 = substr(d1, 2); len1--
+	      d2 = substr(d2, 2); len2--
+	    }
+	    if (len1 != len2 && ! (len1 && len2 && substr(d1, 1, 1) == substr(d2, 1, 1))) {
+	      # The two components differ in length, and the common prefix
+	      # contains only leading zeros.  Consider the longer to be less.
+	      d1 = -len1
+	      d2 = -len2
+	    } else {
+	      # Otherwise, compare as strings.
+	      d1 = "x" d1
+	      d2 = "x" d2
+	    }
+	  } else {
+	    # A fraction is less than an integer.
+	    exit 1
+	  }
+	} else {
+	  if (d2 ~ /^0/) {
+	    # An integer is greater than a fraction.
+	    exit 2
+	  } else {
+	    # Compare two integers.
+	    d1 += 0
+	    d2 += 0
+	  }
+	}
+      } else {
+	# The normal case, without worrying about digits.
+	d1 = substr(v1, 1, 1); v1 = substr(v1, 2)
+	d2 = substr(v2, 1, 1); v2 = substr(v2, 2)
+      }
+      if (d1 < d2) exit 1
+      if (d1 > d2) exit 2
+    }
+    # Beware Solaris /usr/xgp4/bin/awk (at least through Solaris 10),
+    # which mishandles some comparisons of empty strings to integers.
+    if (length(v2)) exit 1
+    if (length(v1)) exit 2
+  }
+'
+
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
+PACKAGE_NAME='ocaml-duppy'
+PACKAGE_TARNAME='ocaml-duppy'
+PACKAGE_VERSION='0.8.0'
+PACKAGE_STRING='ocaml-duppy 0.8.0'
+PACKAGE_BUGREPORT='savonet-users@lists.sourceforge.net'
+PACKAGE_URL=''
+
+ac_subst_vars='LTLIBOBJS
+LIBOBJS
+all_requires
+requires
+ALL_INC
+INC
+DUPPY_SECURE_TRANSPORT_META
+DUPPY_SECURE_TRANSPORT
+W_OSX_SECURE_TRANSPORT
+DUPPY_SSL_META
+DUPPY_SSL
+W_SSL
+W_BYTES
+W_PCRE
+PIC_FLAGS
+OCAMLFLAGS
+CAMLLIBPATH
+OCAMLNCFLAGS
+OCAML_STDLIB
+OCAMLFIND
+CAMLP4RF
+CAMLP4R
+CAMLP4PROF
+CAMLP4ORF
+CAMLP4OOF
+CAMLP4OF
+CAMLP4O
+CAMLP4BOOT
+CAMLP4
+OCAMLYACC
+OCAMLLEXDOTOPT
+OCAMLLEX
+CAMLIDL
+OCAMLBUILD
+OCAMLDOCOPT
+OCAMLDOC
+OCAMLMKLIB
+OCAMLMKTOP
+OCAMLDEPOPT
+OCAMLDEP
+OCAML
+OCAMLOPTDOTOPT
+OCAMLCDOTOPT
+OCAML_DYNLINK
+OCAMLBEST
+OCAMLOPT
+OCAMLLIB
+OCAMLVERSION
+OCAML_HAS_FIRST_CLASS_MODULES
+OCAMLC
+OCAMLFIND_LDCONF
+AR
+INSTALL_DATA
+INSTALL_SCRIPT
+INSTALL_PROGRAM
+AUTOCONF_INSTALL_FILES
+TARGET_TOOLCHAIN
+host_os
+host_vendor
+host_cpu
+host
+build_os
+build_vendor
+build_cpu
+build
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+VERSION
+target_alias
+host_alias
+build_alias
+LIBS
+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
+mandir
+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+runstatedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
+PACKAGE_BUGREPORT
+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+PATH_SEPARATOR
+SHELL'
+ac_subst_files=''
+ac_user_opts='
+enable_option_checking
+enable_ldconf
+enable_camlp4
+enable_debugging
+with_ocaml_warnings
+enable_profiling
+enable_nativecode
+enable_custom
+enable_pic
+with_pcre_dir
+enable_pcre_dynamic_plugin
+with_bytes_dir
+enable_bytes_dynamic_plugin
+with_ssl_dir
+enable_ssl_dynamic_plugin
+with_osx_secure_transport_dir
+enable_osx_secure_transport_dynamic_plugin
+'
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+PIC_FLAGS'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -runstatedir | --runstatedir | --runstatedi | --runstated \
+  | --runstate | --runstat | --runsta | --runst | --runs \
+  | --run | --ru | --r)
+    ac_prev=runstatedir ;;
+  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+  | --run=* | --ru=* | --r=*)
+    runstatedir=$ac_optarg ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+  case $enable_option_checking in
+    no) ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+  esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir runstatedir
+do
+  eval ac_val=\$$ac_var
+  # Remove trailing slashes.
+  case $ac_val in
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
+  esac
+  # Be sure to have absolute directory names.
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_myself" : 'X\(//\)[^/]' \| \
+	 X"$as_myself" : 'X\(//\)$' \| \
+	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_myself" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures ocaml-duppy 0.8.0 to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking ...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/ocaml-duppy]
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of ocaml-duppy 0.8.0:";;
+   esac
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-option-checking  ignore unrecognized --enable/--with options
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --disable-ldconf        don't modify the dynamic loader configuration file
+                          (default is enable)
+  --disable-camlp4        disable camlp4 auto-detection.
+  --disable-debugging     disable debugging information (backtrace printing in
+                          particular)
+  --enable-profiling      compile to generate profiling infomation
+  --disable-nativecode    compile in bytecode
+  --disable-custom        disable custom mode for bytecode compilation (use if
+                          you know what you are doing)
+  --disable-pic           compile PIC objects [default=enabled for shared
+                          builds on supported platforms]
+  --enable-pcre-dynamic-plugin
+                          Compile pcre as an optional dynamic plugin.
+  --enable-bytes-dynamic-plugin
+                          Compile bytes as an optional dynamic plugin.
+  --enable-ssl-dynamic-plugin
+                          Compile ssl as an optional dynamic plugin.
+  --enable-osx-secure-transport-dynamic-plugin
+                          Compile osx-secure-transport as an optional dynamic
+                          plugin.
+
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-ocaml-warnings=WARNINGS
+                          Enable specific list of ocaml compiler warnings.
+  --with-pcre-dir=path    look for ocaml-pcre library in "path"
+                          (autodetected by default)
+  --with-bytes-dir=path   look for ocaml-bytes library in "path"
+                          (autodetected by default)
+  --with-ssl-dir=path     look for ocaml-ssl library in "path"
+                          (autodetected by default)
+  --with-osx_secure_transport-dir=path
+                          look for ocaml-osx_secure_transport library in "path"
+                          (autodetected by default)
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  LIBS        libraries to pass to the linker, e.g. -l<library>
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
+              you have headers in a nonstandard directory <include dir>
+  PIC_FLAGS   compiler flags for PIC code
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to <savonet-users@lists.sourceforge.net>.
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" ||
+      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+      continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for guested configure.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+ocaml-duppy configure 0.8.0
+generated by GNU Autoconf 2.69
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by ocaml-duppy $as_me 0.8.0, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    $as_echo "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+    2)
+      as_fn_append ac_configure_args1 " '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      as_fn_append ac_configure_args " '$ac_arg'"
+      ;;
+    esac
+  done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    $as_echo "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    $as_echo "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      $as_echo "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      $as_echo "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	$as_echo "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      $as_echo "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      $as_echo "$as_me: caught signal $ac_signal"
+    $as_echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+$as_echo "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+ac_site_file1=NONE
+ac_site_file2=NONE
+if test -n "$CONFIG_SITE"; then
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in #((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
+elif test "x$prefix" != xNONE; then
+  ac_site_file1=$prefix/share/config.site
+  ac_site_file2=$prefix/etc/config.site
+else
+  ac_site_file1=$ac_default_prefix/share/config.site
+  ac_site_file2=$ac_default_prefix/etc/config.site
+fi
+for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+do
+  test "x$ac_site_file" = xNONE && continue
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+$as_echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+$as_echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	# differences in whitespace do not lead to failure.
+	ac_old_val_w=`echo x $ac_old_val`
+	ac_new_val_w=`echo x $ac_new_val`
+	if test "$ac_old_val_w" != "$ac_new_val_w"; then
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  ac_cache_corrupted=:
+	else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  eval $ac_var=\$ac_old_val
+	fi
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+VERSION=$PACKAGE_VERSION
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: configuring $PACKAGE_STRING" >&5
+$as_echo "configuring $PACKAGE_STRING" >&6; }
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ac_aux_dir=
+for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
+  if test -f "$ac_dir/install-sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f "$ac_dir/install.sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f "$ac_dir/shtool"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
+fi
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
+
+
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if ${ac_cv_build+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if ${ac_cv_host+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$host_alias" = x; then
+  ac_cv_host=$ac_cv_build
+else
+  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+# Reject install programs that cannot install multiple files.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+$as_echo_n "checking for a BSD-compatible install... " >&6; }
+if test -z "$INSTALL"; then
+if ${ac_cv_path_install+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in #((
+  ./ | .// | /[cC]/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    rm -rf conftest.one conftest.two conftest.dir
+	    echo one > conftest.one
+	    echo two > conftest.two
+	    mkdir conftest.dir
+	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
+	      test -s conftest.one && test -s conftest.two &&
+	      test -s conftest.dir/conftest.one &&
+	      test -s conftest.dir/conftest.two
+	    then
+	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	      break 3
+	    fi
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+
+  done
+IFS=$as_save_IFS
+
+rm -rf conftest.one conftest.two conftest.dir
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    INSTALL=$ac_install_sh
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+$as_echo "$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking target toolchain" >&5
+$as_echo_n "checking target toolchain... " >&6; }
+case "${host_os}" in
+  linux*)
+    TARGET_TOOLCHAIN="linux"
+    ;;
+  mingw*)
+    TARGET_TOOLCHAIN="mingw"
+    ;;
+  cygwin*)
+    TARGET_TOOLCHAIN="cygwin"
+    ;;
+  darwin*)
+    TARGET_TOOLCHAIN="darwin"
+    ;;
+  *)
+    TARGET_TOOLCHAIN="other"
+    ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $TARGET_TOOLCHAIN" >&5
+$as_echo "$TARGET_TOOLCHAIN" >&6; }
+
+
+# AC_CANONICAL_HOST needs those files
+AUTOCONF_INSTALL_FILES="config.guess config.sub install-sh m4/*.m4"
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="${ac_tool_prefix}ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_AR"; then
+  ac_ct_AR=$AR
+  # Extract the first word of "ar", so it can be a program name with args.
+set dummy ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_AR" = x; then
+    AR="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+else
+  AR="$ac_cv_prog_AR"
+fi
+
+
+
+OCAMLFIND_LDCONF=""
+# Check whether --enable-ldconf was given.
+if test "${enable_ldconf+set}" = set; then :
+  enableval=$enable_ldconf; ac_enable_ldconf=$enableval
+else
+  ac_enable_ldconf=$enableval
+fi
+
+if test "$ac_enable_ldconf" = no ; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: disabling modification of ld.conf" >&5
+$as_echo "disabling modification of ld.conf" >&6; }
+	OCAMLFIND_LDCONF=dummy
+fi
+
+
+# Check for Ocaml compilers
+
+  # checking for ocamlc
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ocamlc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLC"; then
+  ac_cv_prog_OCAMLC="$OCAMLC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLC="${ac_tool_prefix}ocamlc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLC=$ac_cv_prog_OCAMLC
+if test -n "$OCAMLC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLC" >&5
+$as_echo "$OCAMLC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLC"; then
+  ac_ct_OCAMLC=$OCAMLC
+  # Extract the first word of "ocamlc", so it can be a program name with args.
+set dummy ocamlc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OCAMLC"; then
+  ac_cv_prog_ac_ct_OCAMLC="$ac_ct_OCAMLC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OCAMLC="ocamlc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLC=$ac_cv_prog_ac_ct_OCAMLC
+if test -n "$ac_ct_OCAMLC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLC" >&5
+$as_echo "$ac_ct_OCAMLC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OCAMLC" = x; then
+    OCAMLC="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OCAMLC=$ac_ct_OCAMLC
+  fi
+else
+  OCAMLC="$ac_cv_prog_OCAMLC"
+fi
+
+
+  if test "$OCAMLC" = "no"; then
+    as_fn_error $? "Cannot find ocamlc." "$LINENO" 5
+  fi
+
+
+
+  OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCaml version is $OCAMLVERSION" >&5
+$as_echo "OCaml version is $OCAMLVERSION" >&6; }
+  # Check if version is >= 3.12.0
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if ocaml compiler supports first-class modules" >&5
+$as_echo_n "checking if ocaml compiler supports first-class modules... " >&6; }
+  as_arg_v1=$OCAMLVERSION
+as_arg_v2=3.12.0
+awk "$as_awk_strverscmp" v1="$as_arg_v1" v2="$as_arg_v2" /dev/null
+case $? in #(
+  1) :
+     ;; #(
+  0) :
+    OCAML_HAS_FIRST_CLASS_MODULES="yes" ;; #(
+  2) :
+    OCAML_HAS_FIRST_CLASS_MODULES="yes" ;; #(
+  *) :
+     ;;
+esac
+  if test -n "${OCAML_HAS_FIRST_CLASS_MODULES}"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+  fi
+
+
+  # If OCAMLLIB is set, use it
+  if test "$OCAMLLIB" = ""; then
+     OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4`
+  else
+     { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCAMLLIB previously set; preserving it." >&5
+$as_echo "OCAMLLIB previously set; preserving it." >&6; }
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCaml library path is $OCAMLLIB" >&5
+$as_echo "OCaml library path is $OCAMLLIB" >&6; }
+
+
+
+
+  # checking for ocamlopt
+  # Extract the first word of "${ac_tool_prefix}ocamlopt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlopt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLOPT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLOPT"; then
+  ac_cv_prog_OCAMLOPT="$OCAMLOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLOPT="${ac_tool_prefix}ocamlopt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_OCAMLOPT" && ac_cv_prog_OCAMLOPT="no"
+fi
+fi
+OCAMLOPT=$ac_cv_prog_OCAMLOPT
+if test -n "$OCAMLOPT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLOPT" >&5
+$as_echo "$OCAMLOPT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  OCAMLBEST=byte
+  OCAML_DYNLINK=byte-dyn
+  if test "$OCAMLOPT" = "no"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Cannot find ocamlopt; bytecode compilation only." >&5
+$as_echo "$as_me: WARNING: Cannot find ocamlopt; bytecode compilation only." >&2;}
+  else
+    TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+    if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc; ocamlopt discarded." >&5
+$as_echo "versions differs from ocamlc; ocamlopt discarded." >&6; }
+        OCAMLOPT=no
+    else
+        OCAMLBEST="byte opt"
+        OCAML_DYNLINK="byte-dyn opt-dyn"
+    fi
+  fi
+
+
+
+
+  # checking for ocamlc.opt
+  # Extract the first word of "${ac_tool_prefix}ocamlc.opt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlc.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLCDOTOPT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLCDOTOPT"; then
+  ac_cv_prog_OCAMLCDOTOPT="$OCAMLCDOTOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLCDOTOPT="${ac_tool_prefix}ocamlc.opt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_OCAMLCDOTOPT" && ac_cv_prog_OCAMLCDOTOPT="no"
+fi
+fi
+OCAMLCDOTOPT=$ac_cv_prog_OCAMLCDOTOPT
+if test -n "$OCAMLCDOTOPT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLCDOTOPT" >&5
+$as_echo "$OCAMLCDOTOPT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  if test "$OCAMLCDOTOPT" != "no"; then
+    TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+    if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc; ocamlc.opt discarded." >&5
+$as_echo "versions differs from ocamlc; ocamlc.opt discarded." >&6; }
+    else
+      OCAMLC=$OCAMLCDOTOPT
+    fi
+  fi
+
+  # checking for ocamlopt.opt
+  if test "$OCAMLOPT" != "no" ; then
+     # Extract the first word of "${ac_tool_prefix}ocamlopt.opt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlopt.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLOPTDOTOPT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLOPTDOTOPT"; then
+  ac_cv_prog_OCAMLOPTDOTOPT="$OCAMLOPTDOTOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLOPTDOTOPT="${ac_tool_prefix}ocamlopt.opt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_OCAMLOPTDOTOPT" && ac_cv_prog_OCAMLOPTDOTOPT="no"
+fi
+fi
+OCAMLOPTDOTOPT=$ac_cv_prog_OCAMLOPTDOTOPT
+if test -n "$OCAMLOPTDOTOPT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLOPTDOTOPT" >&5
+$as_echo "$OCAMLOPTDOTOPT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+     if test "$OCAMLOPTDOTOPT" != "no"; then
+       TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+       if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: version differs from ocamlc; ocamlopt.opt discarded." >&5
+$as_echo "version differs from ocamlc; ocamlopt.opt discarded." >&6; }
+	else
+	 OCAMLOPT=$OCAMLOPTDOTOPT
+       fi
+    fi
+  fi
+
+
+
+  # checking for ocaml toplevel
+  # Extract the first word of "${ac_tool_prefix}ocaml", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocaml; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAML+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAML"; then
+  ac_cv_prog_OCAML="$OCAML" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAML="${ac_tool_prefix}ocaml"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_OCAML" && ac_cv_prog_OCAML="no"
+fi
+fi
+OCAML=$ac_cv_prog_OCAML
+if test -n "$OCAML"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAML" >&5
+$as_echo "$OCAML" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+
+
+  # checking for ocamldep
+  # Extract the first word of "${ac_tool_prefix}ocamldep", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamldep; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLDEP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLDEP"; then
+  ac_cv_prog_OCAMLDEP="$OCAMLDEP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLDEP="${ac_tool_prefix}ocamldep"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_OCAMLDEP" && ac_cv_prog_OCAMLDEP="no"
+fi
+fi
+OCAMLDEP=$ac_cv_prog_OCAMLDEP
+if test -n "$OCAMLDEP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDEP" >&5
+$as_echo "$OCAMLDEP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  if test "$OCAMLDEP" = "no"; then
+    as_fn_error $? "Cannot find ocamlmklib." "$LINENO" 5
+  else
+    # Extract the first word of "${ac_tool_prefix}ocamldep.opt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamldep.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLDEPOPT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLDEPOPT"; then
+  ac_cv_prog_OCAMLDEPOPT="$OCAMLDEPOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLDEPOPT="${ac_tool_prefix}ocamldep.opt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_OCAMLDEPOPT" && ac_cv_prog_OCAMLDEPOPT="no"
+fi
+fi
+OCAMLDEPOPT=$ac_cv_prog_OCAMLDEPOPT
+if test -n "$OCAMLDEPOPT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDEPOPT" >&5
+$as_echo "$OCAMLDEPOPT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    if test "$OCAMLDEPOPT" != "no"; then
+      OCAMLDEP=$OCAMLDEPOPT
+    fi
+  fi
+
+
+
+  # checking for ocamlmktop
+  # Extract the first word of "${ac_tool_prefix}ocamlmktop", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlmktop; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLMKTOP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLMKTOP"; then
+  ac_cv_prog_OCAMLMKTOP="$OCAMLMKTOP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLMKTOP="${ac_tool_prefix}ocamlmktop"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_OCAMLMKTOP" && ac_cv_prog_OCAMLMKTOP="no"
+fi
+fi
+OCAMLMKTOP=$ac_cv_prog_OCAMLMKTOP
+if test -n "$OCAMLMKTOP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLMKTOP" >&5
+$as_echo "$OCAMLMKTOP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+
+
+  # checking for ocamlmklib
+  # Extract the first word of "${ac_tool_prefix}ocamlmklib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlmklib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLMKLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLMKLIB"; then
+  ac_cv_prog_OCAMLMKLIB="$OCAMLMKLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLMKLIB="${ac_tool_prefix}ocamlmklib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_OCAMLMKLIB" && ac_cv_prog_OCAMLMKLIB="no"
+fi
+fi
+OCAMLMKLIB=$ac_cv_prog_OCAMLMKLIB
+if test -n "$OCAMLMKLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLMKLIB" >&5
+$as_echo "$OCAMLMKLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  if test "$OCAMLMKLIB" = "no"; then
+    as_fn_error $? "Cannot find ocamlmklib." "$LINENO" 5
+  fi
+
+
+
+  # checking for ocamldoc
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ocamldoc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamldoc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLDOC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLDOC"; then
+  ac_cv_prog_OCAMLDOC="$OCAMLDOC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLDOC="${ac_tool_prefix}ocamldoc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLDOC=$ac_cv_prog_OCAMLDOC
+if test -n "$OCAMLDOC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDOC" >&5
+$as_echo "$OCAMLDOC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLDOC"; then
+  ac_ct_OCAMLDOC=$OCAMLDOC
+  # Extract the first word of "ocamldoc", so it can be a program name with args.
+set dummy ocamldoc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLDOC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OCAMLDOC"; then
+  ac_cv_prog_ac_ct_OCAMLDOC="$ac_ct_OCAMLDOC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OCAMLDOC="ocamldoc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLDOC=$ac_cv_prog_ac_ct_OCAMLDOC
+if test -n "$ac_ct_OCAMLDOC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLDOC" >&5
+$as_echo "$ac_ct_OCAMLDOC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OCAMLDOC" = x; then
+    OCAMLDOC="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OCAMLDOC=$ac_ct_OCAMLDOC
+  fi
+else
+  OCAMLDOC="$ac_cv_prog_OCAMLDOC"
+fi
+
+  if test "$OCAMLDOC" != "no"; then
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ocamldoc.opt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamldoc.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLDOCOPT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLDOCOPT"; then
+  ac_cv_prog_OCAMLDOCOPT="$OCAMLDOCOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLDOCOPT="${ac_tool_prefix}ocamldoc.opt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLDOCOPT=$ac_cv_prog_OCAMLDOCOPT
+if test -n "$OCAMLDOCOPT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDOCOPT" >&5
+$as_echo "$OCAMLDOCOPT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLDOCOPT"; then
+  ac_ct_OCAMLDOCOPT=$OCAMLDOCOPT
+  # Extract the first word of "ocamldoc.opt", so it can be a program name with args.
+set dummy ocamldoc.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLDOCOPT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OCAMLDOCOPT"; then
+  ac_cv_prog_ac_ct_OCAMLDOCOPT="$ac_ct_OCAMLDOCOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OCAMLDOCOPT="ocamldoc.opt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLDOCOPT=$ac_cv_prog_ac_ct_OCAMLDOCOPT
+if test -n "$ac_ct_OCAMLDOCOPT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLDOCOPT" >&5
+$as_echo "$ac_ct_OCAMLDOCOPT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OCAMLDOCOPT" = x; then
+    OCAMLDOCOPT="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OCAMLDOCOPT=$ac_ct_OCAMLDOCOPT
+  fi
+else
+  OCAMLDOCOPT="$ac_cv_prog_OCAMLDOCOPT"
+fi
+
+    if test "$OCAMLDOCOPT" != "no"; then
+      OCAMLDOC=$OCAMLDOCOPT
+    fi
+  fi
+
+
+
+  # checking for ocamlbuild
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ocamlbuild", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlbuild; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLBUILD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLBUILD"; then
+  ac_cv_prog_OCAMLBUILD="$OCAMLBUILD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLBUILD="${ac_tool_prefix}ocamlbuild"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLBUILD=$ac_cv_prog_OCAMLBUILD
+if test -n "$OCAMLBUILD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLBUILD" >&5
+$as_echo "$OCAMLBUILD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLBUILD"; then
+  ac_ct_OCAMLBUILD=$OCAMLBUILD
+  # Extract the first word of "ocamlbuild", so it can be a program name with args.
+set dummy ocamlbuild; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLBUILD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OCAMLBUILD"; then
+  ac_cv_prog_ac_ct_OCAMLBUILD="$ac_ct_OCAMLBUILD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OCAMLBUILD="ocamlbuild"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLBUILD=$ac_cv_prog_ac_ct_OCAMLBUILD
+if test -n "$ac_ct_OCAMLBUILD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLBUILD" >&5
+$as_echo "$ac_ct_OCAMLBUILD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OCAMLBUILD" = x; then
+    OCAMLBUILD="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OCAMLBUILD=$ac_ct_OCAMLBUILD
+  fi
+else
+  OCAMLBUILD="$ac_cv_prog_OCAMLBUILD"
+fi
+
+
+
+
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}camlidl", so it can be a program name with args.
+set dummy ${ac_tool_prefix}camlidl; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CAMLIDL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CAMLIDL"; then
+  ac_cv_prog_CAMLIDL="$CAMLIDL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CAMLIDL="${ac_tool_prefix}camlidl"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CAMLIDL=$ac_cv_prog_CAMLIDL
+if test -n "$CAMLIDL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CAMLIDL" >&5
+$as_echo "$CAMLIDL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CAMLIDL"; then
+  ac_ct_CAMLIDL=$CAMLIDL
+  # Extract the first word of "camlidl", so it can be a program name with args.
+set dummy camlidl; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CAMLIDL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CAMLIDL"; then
+  ac_cv_prog_ac_ct_CAMLIDL="$ac_ct_CAMLIDL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CAMLIDL="camlidl"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CAMLIDL=$ac_cv_prog_ac_ct_CAMLIDL
+if test -n "$ac_ct_CAMLIDL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CAMLIDL" >&5
+$as_echo "$ac_ct_CAMLIDL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CAMLIDL" = x; then
+    CAMLIDL="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CAMLIDL=$ac_ct_CAMLIDL
+  fi
+else
+  CAMLIDL="$ac_cv_prog_CAMLIDL"
+fi
+
+
+
+
+  # checking for ocamllex
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ocamllex", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamllex; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLLEX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLLEX"; then
+  ac_cv_prog_OCAMLLEX="$OCAMLLEX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLLEX="${ac_tool_prefix}ocamllex"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLLEX=$ac_cv_prog_OCAMLLEX
+if test -n "$OCAMLLEX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLLEX" >&5
+$as_echo "$OCAMLLEX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLLEX"; then
+  ac_ct_OCAMLLEX=$OCAMLLEX
+  # Extract the first word of "ocamllex", so it can be a program name with args.
+set dummy ocamllex; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLLEX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OCAMLLEX"; then
+  ac_cv_prog_ac_ct_OCAMLLEX="$ac_ct_OCAMLLEX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OCAMLLEX="ocamllex"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLLEX=$ac_cv_prog_ac_ct_OCAMLLEX
+if test -n "$ac_ct_OCAMLLEX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLLEX" >&5
+$as_echo "$ac_ct_OCAMLLEX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OCAMLLEX" = x; then
+    OCAMLLEX="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OCAMLLEX=$ac_ct_OCAMLLEX
+  fi
+else
+  OCAMLLEX="$ac_cv_prog_OCAMLLEX"
+fi
+
+  if test "$OCAMLLEX" != "no"; then
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ocamllex.opt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamllex.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLLEXDOTOPT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLLEXDOTOPT"; then
+  ac_cv_prog_OCAMLLEXDOTOPT="$OCAMLLEXDOTOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLLEXDOTOPT="${ac_tool_prefix}ocamllex.opt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLLEXDOTOPT=$ac_cv_prog_OCAMLLEXDOTOPT
+if test -n "$OCAMLLEXDOTOPT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLLEXDOTOPT" >&5
+$as_echo "$OCAMLLEXDOTOPT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLLEXDOTOPT"; then
+  ac_ct_OCAMLLEXDOTOPT=$OCAMLLEXDOTOPT
+  # Extract the first word of "ocamllex.opt", so it can be a program name with args.
+set dummy ocamllex.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLLEXDOTOPT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OCAMLLEXDOTOPT"; then
+  ac_cv_prog_ac_ct_OCAMLLEXDOTOPT="$ac_ct_OCAMLLEXDOTOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OCAMLLEXDOTOPT="ocamllex.opt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLLEXDOTOPT=$ac_cv_prog_ac_ct_OCAMLLEXDOTOPT
+if test -n "$ac_ct_OCAMLLEXDOTOPT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLLEXDOTOPT" >&5
+$as_echo "$ac_ct_OCAMLLEXDOTOPT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OCAMLLEXDOTOPT" = x; then
+    OCAMLLEXDOTOPT="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OCAMLLEXDOTOPT=$ac_ct_OCAMLLEXDOTOPT
+  fi
+else
+  OCAMLLEXDOTOPT="$ac_cv_prog_OCAMLLEXDOTOPT"
+fi
+
+    if test "$OCAMLLEXDOTOPT" != "no"; then
+	OCAMLLEX=$OCAMLLEXDOTOPT
+    fi
+  fi
+
+
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ocamlyacc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlyacc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLYACC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLYACC"; then
+  ac_cv_prog_OCAMLYACC="$OCAMLYACC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLYACC="${ac_tool_prefix}ocamlyacc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLYACC=$ac_cv_prog_OCAMLYACC
+if test -n "$OCAMLYACC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLYACC" >&5
+$as_echo "$OCAMLYACC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLYACC"; then
+  ac_ct_OCAMLYACC=$OCAMLYACC
+  # Extract the first word of "ocamlyacc", so it can be a program name with args.
+set dummy ocamlyacc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLYACC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OCAMLYACC"; then
+  ac_cv_prog_ac_ct_OCAMLYACC="$ac_ct_OCAMLYACC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OCAMLYACC="ocamlyacc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLYACC=$ac_cv_prog_ac_ct_OCAMLYACC
+if test -n "$ac_ct_OCAMLYACC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLYACC" >&5
+$as_echo "$ac_ct_OCAMLYACC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OCAMLYACC" = x; then
+    OCAMLYACC="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OCAMLYACC=$ac_ct_OCAMLYACC
+  fi
+else
+  OCAMLYACC="$ac_cv_prog_OCAMLYACC"
+fi
+
+
+
+
+
+
+  # Check whether --enable-camlp4 was given.
+if test "${enable_camlp4+set}" = set; then :
+  enableval=$enable_camlp4;
+fi
+
+
+  # checking for camlp4
+  if test "x$enable_camlp4" != "xno"; then
+    # Extract the first word of "${ac_tool_prefix}camlp4", so it can be a program name with args.
+set dummy ${ac_tool_prefix}camlp4; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CAMLP4+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CAMLP4"; then
+  ac_cv_prog_CAMLP4="$CAMLP4" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CAMLP4="${ac_tool_prefix}camlp4"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_CAMLP4" && ac_cv_prog_CAMLP4="no"
+fi
+fi
+CAMLP4=$ac_cv_prog_CAMLP4
+if test -n "$CAMLP4"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CAMLP4" >&5
+$as_echo "$CAMLP4" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    if test "$CAMLP4" != "no"; then
+       TMPVERSION=`$CAMLP4 -v 2>&1| sed -n -e 's|.*version *\(.*\)$|\1|p' | tr -d '\r'`
+       if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+  	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc" >&5
+$as_echo "versions differs from ocamlc" >&6; }
+          CAMLP4=no
+       fi
+    fi
+
+
+    # checking for companion tools
+    # Extract the first word of "${ac_tool_prefix}camlp4boot", so it can be a program name with args.
+set dummy ${ac_tool_prefix}camlp4boot; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CAMLP4BOOT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CAMLP4BOOT"; then
+  ac_cv_prog_CAMLP4BOOT="$CAMLP4BOOT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CAMLP4BOOT="${ac_tool_prefix}camlp4boot"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_CAMLP4BOOT" && ac_cv_prog_CAMLP4BOOT="no"
+fi
+fi
+CAMLP4BOOT=$ac_cv_prog_CAMLP4BOOT
+if test -n "$CAMLP4BOOT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CAMLP4BOOT" >&5
+$as_echo "$CAMLP4BOOT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    # Extract the first word of "${ac_tool_prefix}camlp4o", so it can be a program name with args.
+set dummy ${ac_tool_prefix}camlp4o; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CAMLP4O+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CAMLP4O"; then
+  ac_cv_prog_CAMLP4O="$CAMLP4O" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CAMLP4O="${ac_tool_prefix}camlp4o"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_CAMLP4O" && ac_cv_prog_CAMLP4O="no"
+fi
+fi
+CAMLP4O=$ac_cv_prog_CAMLP4O
+if test -n "$CAMLP4O"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CAMLP4O" >&5
+$as_echo "$CAMLP4O" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    # Extract the first word of "${ac_tool_prefix}camlp4of", so it can be a program name with args.
+set dummy ${ac_tool_prefix}camlp4of; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CAMLP4OF+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CAMLP4OF"; then
+  ac_cv_prog_CAMLP4OF="$CAMLP4OF" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CAMLP4OF="${ac_tool_prefix}camlp4of"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_CAMLP4OF" && ac_cv_prog_CAMLP4OF="no"
+fi
+fi
+CAMLP4OF=$ac_cv_prog_CAMLP4OF
+if test -n "$CAMLP4OF"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CAMLP4OF" >&5
+$as_echo "$CAMLP4OF" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    # Extract the first word of "${ac_tool_prefix}camlp4oof", so it can be a program name with args.
+set dummy ${ac_tool_prefix}camlp4oof; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CAMLP4OOF+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CAMLP4OOF"; then
+  ac_cv_prog_CAMLP4OOF="$CAMLP4OOF" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CAMLP4OOF="${ac_tool_prefix}camlp4oof"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_CAMLP4OOF" && ac_cv_prog_CAMLP4OOF="no"
+fi
+fi
+CAMLP4OOF=$ac_cv_prog_CAMLP4OOF
+if test -n "$CAMLP4OOF"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CAMLP4OOF" >&5
+$as_echo "$CAMLP4OOF" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    # Extract the first word of "${ac_tool_prefix}camlp4orf", so it can be a program name with args.
+set dummy ${ac_tool_prefix}camlp4orf; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CAMLP4ORF+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CAMLP4ORF"; then
+  ac_cv_prog_CAMLP4ORF="$CAMLP4ORF" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CAMLP4ORF="${ac_tool_prefix}camlp4orf"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_CAMLP4ORF" && ac_cv_prog_CAMLP4ORF="no"
+fi
+fi
+CAMLP4ORF=$ac_cv_prog_CAMLP4ORF
+if test -n "$CAMLP4ORF"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CAMLP4ORF" >&5
+$as_echo "$CAMLP4ORF" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    # Extract the first word of "${ac_tool_prefix}camlp4prof", so it can be a program name with args.
+set dummy ${ac_tool_prefix}camlp4prof; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CAMLP4PROF+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CAMLP4PROF"; then
+  ac_cv_prog_CAMLP4PROF="$CAMLP4PROF" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CAMLP4PROF="${ac_tool_prefix}camlp4prof"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_CAMLP4PROF" && ac_cv_prog_CAMLP4PROF="no"
+fi
+fi
+CAMLP4PROF=$ac_cv_prog_CAMLP4PROF
+if test -n "$CAMLP4PROF"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CAMLP4PROF" >&5
+$as_echo "$CAMLP4PROF" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    # Extract the first word of "${ac_tool_prefix}camlp4r", so it can be a program name with args.
+set dummy ${ac_tool_prefix}camlp4r; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CAMLP4R+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CAMLP4R"; then
+  ac_cv_prog_CAMLP4R="$CAMLP4R" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CAMLP4R="${ac_tool_prefix}camlp4r"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_CAMLP4R" && ac_cv_prog_CAMLP4R="no"
+fi
+fi
+CAMLP4R=$ac_cv_prog_CAMLP4R
+if test -n "$CAMLP4R"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CAMLP4R" >&5
+$as_echo "$CAMLP4R" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    # Extract the first word of "${ac_tool_prefix}camlp4rf", so it can be a program name with args.
+set dummy ${ac_tool_prefix}camlp4rf; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CAMLP4RF+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CAMLP4RF"; then
+  ac_cv_prog_CAMLP4RF="$CAMLP4RF" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CAMLP4RF="${ac_tool_prefix}camlp4rf"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_CAMLP4RF" && ac_cv_prog_CAMLP4RF="no"
+fi
+fi
+CAMLP4RF=$ac_cv_prog_CAMLP4RF
+if test -n "$CAMLP4RF"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CAMLP4RF" >&5
+$as_echo "$CAMLP4RF" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  else
+    CAMLP4=no
+    CAMLP4BOOT=no
+    CAMLP4O=no
+    CAMLP4OF=no
+    CAMLP4OOF=no
+    CAMLP4ORF=no
+    CAMLP4PROF=no
+    CAMLP4R=no
+    CAMLP4RF=no
+  fi
+
+
+
+
+
+
+
+
+
+
+
+
+  # checking for ocamlfind
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ocamlfind", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlfind; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLFIND+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OCAMLFIND"; then
+  ac_cv_prog_OCAMLFIND="$OCAMLFIND" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OCAMLFIND="${ac_tool_prefix}ocamlfind"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLFIND=$ac_cv_prog_OCAMLFIND
+if test -n "$OCAMLFIND"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLFIND" >&5
+$as_echo "$OCAMLFIND" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLFIND"; then
+  ac_ct_OCAMLFIND=$OCAMLFIND
+  # Extract the first word of "ocamlfind", so it can be a program name with args.
+set dummy ocamlfind; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLFIND+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OCAMLFIND"; then
+  ac_cv_prog_ac_ct_OCAMLFIND="$ac_ct_OCAMLFIND" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OCAMLFIND="ocamlfind"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLFIND=$ac_cv_prog_ac_ct_OCAMLFIND
+if test -n "$ac_ct_OCAMLFIND"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLFIND" >&5
+$as_echo "$ac_ct_OCAMLFIND" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OCAMLFIND" = x; then
+    OCAMLFIND="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OCAMLFIND=$ac_ct_OCAMLFIND
+  fi
+else
+  OCAMLFIND="$ac_cv_prog_OCAMLFIND"
+fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ocaml standard library path" >&5
+$as_echo_n "checking for ocaml standard library path... " >&6; }
+  OCAML_STDLIB=`$OCAMLFIND printconf stdlib`
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAML_STDLIB" >&5
+$as_echo "$OCAML_STDLIB" >&6; }
+
+
+# Check if caml/threads.h is present
+old_CFLAGS=$CFLAGS
+CFLAGS="$CFLAGS -I${OCAML_STDLIB}"
+ac_fn_c_check_header_compile "$LINENO" "caml/threads.h" "ac_cv_header_caml_threads_h" "#include <caml/misc.h>
+"
+if test "x$ac_cv_header_caml_threads_h" = xyes; then :
+  CAML_THREADS=yes
+fi
+
+
+CFLAGS=${old_CFLAGS}
+
+# Check whether --enable-debugging was given.
+if test "${enable_debugging+set}" = set; then :
+  enableval=$enable_debugging;
+fi
+
+
+if test "$enable_debugging" \!= "no" ; then
+  OCAMLFLAGS="$OCAMLFLAGS -g"
+fi
+
+
+# Check whether --with-ocaml-warnings was given.
+if test "${with_ocaml_warnings+set}" = set; then :
+  withval=$with_ocaml_warnings;
+fi
+
+
+if test -n "${with_ocaml_warnings}" ; then
+  OCAMLFLAGS="$OCAMLFLAGS -w +${with_ocaml_warnings}"
+else
+  OCAMLFLAGS="$OCAMLFLAGS -w +A-4@5-7@8-9@11@12@20-35-44-45-50"
+fi
+
+# Check whether --enable-profiling was given.
+if test "${enable_profiling+set}" = set; then :
+  enableval=$enable_profiling;
+fi
+
+if test "x$enable_profiling" = "xyes" ; then
+  OCAMLNCFLAGS="$OCAMLNCFLAGS -p"
+fi
+
+
+# Check whether --enable-nativecode was given.
+if test "${enable_nativecode+set}" = set; then :
+  enableval=$enable_nativecode;
+fi
+
+
+# Check whether --enable-custom was given.
+if test "${enable_custom+set}" = set; then :
+  enableval=$enable_custom;
+fi
+
+
+CAMLLIBPATH=$OCAMLLIB
+
+
+
+
+
+
+
+# Check whether --enable-pic was given.
+if test "${enable_pic+set}" = set; then :
+  enableval=$enable_pic; enable_pic="$enableval"
+    test "x$enable_pic" = x && enable_pic=auto
+else
+  enable_pic=auto
+fi
+
+if test "$enable_pic" = auto && test "$enable_static" = yes; then
+    enable_pic=no
+fi
+if test "$enable_pic" != no; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to produce PIC" >&5
+$as_echo_n "checking for $CC option to produce PIC... " >&6; }
+        if test "x$PIC_FLAGS" = "x"; then
+                if test "x$GCC" = "xyes"; then
+            case "$host_os" in
+            aix*|beos*|cygwin*|irix5*|irix6*|osf3*|osf4*|osf5*)
+                                ;;
+            mingw*|os2*|pw32*)
+                                                                PIC_FLAGS="-DDLL_EXPORT"
+                ;;
+            darwin*|rhapsody*)
+                                                PIC_FLAGS="-fno-common"
+                ;;
+            hpux*)
+                                                case $host_cpu in
+                hppa*64*|ia64*)
+                    ;;
+                *)
+                    PIC_FLAGS="-fPIC"
+                    ;;
+                esac
+                ;;
+            *)
+                                PIC_FLAGS="-fPIC"
+                ;;
+            esac
+        else             case "$host_os" in
+            hpux9*|hpux10*|hpux11*)
+                                                case "$host_cpu" in
+                hppa*64*|ia64*)
+                                        ;;
+                *)
+                    PIC_FLAGS="+Z"
+                    ;;
+                esac
+                ;;
+            linux*|k*bsd*-gnu)
+                case `basename "$CC"` in
+                icc*|ecc*|ifort*)
+                    PIC_FLAGS="-KPIC"
+                    ;;
+                pgcc*|pgf77*|pgf90*|pgf95*)
+                                                            PIC_FLAGS="-fpic"
+                    ;;
+                ccc*)
+                                        ;;
+                xl*)
+                                        PIC_FLAGS="-qpic"
+                    ;;
+                *)
+                    case `$CC -V 2>&1 | sed 5q` in
+                    *Sun\ C*|*Sun\ F*)
+                                                PIC_FLAGS="-KPIC"
+                        ;;
+                    esac
+                esac
+                ;;
+            solaris*)
+                PIC_FLAGS="-KPIC"
+                ;;
+            sunos4*)
+                PIC_FLAGS="-PIC"
+                ;;
+            esac
+        fi
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PIC_FLAGS" >&5
+$as_echo "$PIC_FLAGS" >&6; }
+fi
+
+
+
+CXXFLAGS="$CXXFLAGS $PIC_FLAGS"
+CPPFLAGS="$CPPFLAGS $PIC_FLAGS"
+
+# Add prefix to compilation variables
+# if passed
+if test "x$prefix" != "xNONE"; then
+  CFLAGS="$CFLAGS -I$prefix/include"
+  LDFLAGS="$LDFLAGS -L$prefix/lib"
+  CPPFLAGS="$CPPFLAGS -I$prefix/include"
+  CXXFLAGS="$CXXFLAGS -I$prefix/include"
+fi
+
+
+
+
+
+
+
+if test -n ""; then
+  BINDING_PKGS=""
+else
+  BINDING_PKGS="pcre"
+fi
+
+
+# Check whether --with-pcre-dir was given.
+if test "${with_pcre_dir+set}" = set; then :
+  withval=$with_pcre_dir;
+fi
+
+
+# Check whether --enable-pcre-dynamic-plugin was given.
+if test "${enable_pcre_dynamic_plugin+set}" = set; then :
+  enableval=$enable_pcre_dynamic_plugin;
+fi
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ocaml pcre module" >&5
+$as_echo_n "checking for ocaml pcre module... " >&6; }
+
+OCAML_CHECK="${OCAMLFIND} query pcre"
+
+
+if test "x$enable_pcre_dynamic_plugin" = "xyes" ; then
+  PCRE_SHARED="yes"
+  PLUGINS="$PLUGINS pcre"
+fi
+
+
+DEPS_CHECK=yes
+for i in ; do
+  eval "dep_check=\$W_$i"
+  if test -z "${dep_check}"; then
+    DEPS_CHECK=
+    break
+  fi
+done
+if test -z $DEPS_CHECK; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: pcre needs " >&5
+$as_echo "pcre needs " >&6; }
+else
+  if test -z "${with_pcre_dir}" ; then
+     if ! ${OCAML_CHECK} > /dev/null 2>&1 ; then
+         as_fn_error $? "Not found." "$LINENO" 5
+     else
+         PCRE_version="`${OCAMLFIND} query -format "%v" pcre 2>/dev/null`"
+         if test -z "" ; then
+    VERSION_OK=yes
+  else
+    as_arg_v1=${PCRE_version}
+as_arg_v2=
+awk "$as_awk_strverscmp" v1="$as_arg_v1" v2="$as_arg_v2" /dev/null
+case $? in #(
+  1) :
+    VERSION_OK= ;; #(
+  0) :
+    VERSION_OK=yes ;; #(
+  2) :
+    VERSION_OK=yes ;; #(
+  *) :
+     ;;
+esac
+fi
+         if test -z "${VERSION_OK}"; then
+           as_fn_error $? "requires version >=  found ${PCRE_version}." "$LINENO" 5
+         else
+           if test -z "${PCRE_SHARED}"; then
+             PCRE_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINDING_PKGS 2>/dev/null`"
+             liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} ${PCRE_PACKAGES}"
+             W_PCRE=yes
+           else
+             pcre_packages="`${OCAMLFIND} query -r -separator " " -format "%p" $BINDING_PKGS 2>/dev/null`"
+             W_PCRE=pcre
+           fi
+           LIBS_VERSIONS="${LIBS_VERSIONS} pcre=$PCRE_version"
+           { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+         fi
+     fi
+  else
+    PCRE_STOP_CHECK=
+    PCRE_version="[unknown version]"
+    PCRE_requires=
+    if test -r ${with_pcre_dir}/META >/dev/null 2>&1; then
+      # Grab version
+      PCRE_version=`cat "${with_pcre_dir}/META" | grep version | cut -d'=' -f 2 | tr -d ' ' | tr -d '"' | head -n 1`
+      if test -z "" ; then
+    VERSION_OK=yes
+  else
+    as_arg_v1=${PCRE_version}
+as_arg_v2=
+awk "$as_awk_strverscmp" v1="$as_arg_v1" v2="$as_arg_v2" /dev/null
+case $? in #(
+  1) :
+    VERSION_OK= ;; #(
+  0) :
+    VERSION_OK=yes ;; #(
+  2) :
+    VERSION_OK=yes ;; #(
+  *) :
+     ;;
+esac
+fi
+      if test -z "${VERSION_OK}"; then
+        as_fn_error $? "requires version >=  found ${PCRE_version}." "$LINENO" 5
+        PCRE_STOP_CHECK=yes
+      fi
+      PCRE_requires=`cat "${with_pcre_dir}/META" | grep 'requires' | cut -d '=' -f 2 | tr -d '"'`
+      PCRE_path="${with_pcre_dir}"
+    else
+      PCRE_path=`${OCAMLFIND} -query pcre 2>/dev/null`
+      if ! test -z ""; then
+        as_fn_error $? "cannot find version from META file." "$LINENO" 5
+        PCRE_STOP_CHECK=yes
+      fi
+    fi
+    if test -z "${PCRE_STOP_CHECK}"; then
+      PCRE_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINGING_PKGS 2>/dev/null`"
+      echo ${with_pcre_dir} | grep ^/ > /dev/null 2>&1 \
+          || with_pcre_dir=${PWD}/${with_pcre_dir}
+      if test -z "${PCRE_SHARED}"; then
+        liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} -I ${with_pcre_dir} ${PCRE_PACKAGES}"
+      else
+        pcre_ocamlcflags="-I ${with_pcre_dir} ${PCRE_PACKAGES}"
+      fi
+      # We need to recurse here because
+      # some package may not be registered using ocamlfind
+      if test -n ""; then
+        PCRE_CMA=.${cma}
+      else
+        PCRE_CMA=pcre.${cma}
+      fi
+      for i in ${PCRE_requires}; do
+        PCRE_PACKAGES="${PCRE_PACKAGES} `${OCAMLFIND} query -separator " " -format "-package %p" $i 2>/dev/null`"
+      done
+      if test -z "${PCRE_SHARED}"; then
+        liquidsoap_ocamllflags="${liquidsoap_ocamllflags} ${PCRE_PACKAGES} ${PCRE_CMA}"
+        W_PCRE=yes
+      else
+        pcre_ocamllflags="${PCRE_PACKAGES} ${PCRE_CMA}"
+        W_PCRE=pcre
+      fi
+      LIBS_VERSIONS="${LIBS_VERSIONS} pcre=$PCRE_version"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+    fi
+  fi
+fi
+
+
+if test -z "${W_PCRE}" ; then
+    w_PCRE="no (requires pcre)"
+else
+    if test -z "${PCRE_SHARED}"; then
+      w_PCRE=yes
+    else
+      PLUGINS_DATA="$PLUGINS_DATA
+pcre_ocamlcflags=${pcre_ocamlcflags}
+pcre_ocamllflags=${pcre_ocamllflags}
+pcre_packages=${pcre_packages}"
+      w_PCRE=plugin
+    fi
+fi
+INC="$INC `$OCAMLFIND query pcre`"
+
+
+
+
+
+
+if test -n ""; then
+  BINDING_PKGS=""
+else
+  BINDING_PKGS="bytes"
+fi
+
+
+# Check whether --with-bytes-dir was given.
+if test "${with_bytes_dir+set}" = set; then :
+  withval=$with_bytes_dir;
+fi
+
+
+# Check whether --enable-bytes-dynamic-plugin was given.
+if test "${enable_bytes_dynamic_plugin+set}" = set; then :
+  enableval=$enable_bytes_dynamic_plugin;
+fi
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ocaml bytes module" >&5
+$as_echo_n "checking for ocaml bytes module... " >&6; }
+
+OCAML_CHECK="${OCAMLFIND} query bytes"
+
+
+if test "x$enable_bytes_dynamic_plugin" = "xyes" ; then
+  BYTES_SHARED="yes"
+  PLUGINS="$PLUGINS bytes"
+fi
+
+
+DEPS_CHECK=yes
+for i in ; do
+  eval "dep_check=\$W_$i"
+  if test -z "${dep_check}"; then
+    DEPS_CHECK=
+    break
+  fi
+done
+if test -z $DEPS_CHECK; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: bytes needs " >&5
+$as_echo "bytes needs " >&6; }
+else
+  if test -z "${with_bytes_dir}" ; then
+     if ! ${OCAML_CHECK} > /dev/null 2>&1 ; then
+         as_fn_error $? "Not found." "$LINENO" 5
+     else
+         BYTES_version="`${OCAMLFIND} query -format "%v" bytes 2>/dev/null`"
+         if test -z "" ; then
+    VERSION_OK=yes
+  else
+    as_arg_v1=${BYTES_version}
+as_arg_v2=
+awk "$as_awk_strverscmp" v1="$as_arg_v1" v2="$as_arg_v2" /dev/null
+case $? in #(
+  1) :
+    VERSION_OK= ;; #(
+  0) :
+    VERSION_OK=yes ;; #(
+  2) :
+    VERSION_OK=yes ;; #(
+  *) :
+     ;;
+esac
+fi
+         if test -z "${VERSION_OK}"; then
+           as_fn_error $? "requires version >=  found ${BYTES_version}." "$LINENO" 5
+         else
+           if test -z "${BYTES_SHARED}"; then
+             BYTES_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINDING_PKGS 2>/dev/null`"
+             liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} ${BYTES_PACKAGES}"
+             W_BYTES=yes
+           else
+             bytes_packages="`${OCAMLFIND} query -r -separator " " -format "%p" $BINDING_PKGS 2>/dev/null`"
+             W_BYTES=bytes
+           fi
+           LIBS_VERSIONS="${LIBS_VERSIONS} bytes=$BYTES_version"
+           { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+         fi
+     fi
+  else
+    BYTES_STOP_CHECK=
+    BYTES_version="[unknown version]"
+    BYTES_requires=
+    if test -r ${with_bytes_dir}/META >/dev/null 2>&1; then
+      # Grab version
+      BYTES_version=`cat "${with_bytes_dir}/META" | grep version | cut -d'=' -f 2 | tr -d ' ' | tr -d '"' | head -n 1`
+      if test -z "" ; then
+    VERSION_OK=yes
+  else
+    as_arg_v1=${BYTES_version}
+as_arg_v2=
+awk "$as_awk_strverscmp" v1="$as_arg_v1" v2="$as_arg_v2" /dev/null
+case $? in #(
+  1) :
+    VERSION_OK= ;; #(
+  0) :
+    VERSION_OK=yes ;; #(
+  2) :
+    VERSION_OK=yes ;; #(
+  *) :
+     ;;
+esac
+fi
+      if test -z "${VERSION_OK}"; then
+        as_fn_error $? "requires version >=  found ${BYTES_version}." "$LINENO" 5
+        BYTES_STOP_CHECK=yes
+      fi
+      BYTES_requires=`cat "${with_bytes_dir}/META" | grep 'requires' | cut -d '=' -f 2 | tr -d '"'`
+      BYTES_path="${with_bytes_dir}"
+    else
+      BYTES_path=`${OCAMLFIND} -query bytes 2>/dev/null`
+      if ! test -z ""; then
+        as_fn_error $? "cannot find version from META file." "$LINENO" 5
+        BYTES_STOP_CHECK=yes
+      fi
+    fi
+    if test -z "${BYTES_STOP_CHECK}"; then
+      BYTES_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINGING_PKGS 2>/dev/null`"
+      echo ${with_bytes_dir} | grep ^/ > /dev/null 2>&1 \
+          || with_bytes_dir=${PWD}/${with_bytes_dir}
+      if test -z "${BYTES_SHARED}"; then
+        liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} -I ${with_bytes_dir} ${BYTES_PACKAGES}"
+      else
+        bytes_ocamlcflags="-I ${with_bytes_dir} ${BYTES_PACKAGES}"
+      fi
+      # We need to recurse here because
+      # some package may not be registered using ocamlfind
+      if test -n ""; then
+        BYTES_CMA=.${cma}
+      else
+        BYTES_CMA=bytes.${cma}
+      fi
+      for i in ${BYTES_requires}; do
+        BYTES_PACKAGES="${BYTES_PACKAGES} `${OCAMLFIND} query -separator " " -format "-package %p" $i 2>/dev/null`"
+      done
+      if test -z "${BYTES_SHARED}"; then
+        liquidsoap_ocamllflags="${liquidsoap_ocamllflags} ${BYTES_PACKAGES} ${BYTES_CMA}"
+        W_BYTES=yes
+      else
+        bytes_ocamllflags="${BYTES_PACKAGES} ${BYTES_CMA}"
+        W_BYTES=bytes
+      fi
+      LIBS_VERSIONS="${LIBS_VERSIONS} bytes=$BYTES_version"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+    fi
+  fi
+fi
+
+
+if test -z "${W_BYTES}" ; then
+    w_BYTES="no (requires bytes)"
+else
+    if test -z "${BYTES_SHARED}"; then
+      w_BYTES=yes
+    else
+      PLUGINS_DATA="$PLUGINS_DATA
+bytes_ocamlcflags=${bytes_ocamlcflags}
+bytes_ocamllflags=${bytes_ocamllflags}
+bytes_packages=${bytes_packages}"
+      w_BYTES=plugin
+    fi
+fi
+INC="$INC `$OCAMLFIND query bytes`"
+
+
+
+
+
+
+if test -n ""; then
+  BINDING_PKGS=""
+else
+  BINDING_PKGS="ssl"
+fi
+
+
+# Check whether --with-ssl-dir was given.
+if test "${with_ssl_dir+set}" = set; then :
+  withval=$with_ssl_dir;
+fi
+
+
+# Check whether --enable-ssl-dynamic-plugin was given.
+if test "${enable_ssl_dynamic_plugin+set}" = set; then :
+  enableval=$enable_ssl_dynamic_plugin;
+fi
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ocaml ssl module" >&5
+$as_echo_n "checking for ocaml ssl module... " >&6; }
+
+OCAML_CHECK="${OCAMLFIND} query ssl"
+
+
+if test "x$enable_ssl_dynamic_plugin" = "xyes" ; then
+  SSL_SHARED="yes"
+  PLUGINS="$PLUGINS ssl"
+fi
+
+
+DEPS_CHECK=yes
+for i in ; do
+  eval "dep_check=\$W_$i"
+  if test -z "${dep_check}"; then
+    DEPS_CHECK=
+    break
+  fi
+done
+if test -z $DEPS_CHECK; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ssl needs " >&5
+$as_echo "ssl needs " >&6; }
+else
+  if test -z "${with_ssl_dir}" ; then
+     if ! ${OCAML_CHECK} > /dev/null 2>&1 ; then
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: Not found." >&5
+$as_echo "Not found." >&6; }
+     else
+         SSL_version="`${OCAMLFIND} query -format "%v" ssl 2>/dev/null`"
+         if test -z "" ; then
+    VERSION_OK=yes
+  else
+    as_arg_v1=${SSL_version}
+as_arg_v2=
+awk "$as_awk_strverscmp" v1="$as_arg_v1" v2="$as_arg_v2" /dev/null
+case $? in #(
+  1) :
+    VERSION_OK= ;; #(
+  0) :
+    VERSION_OK=yes ;; #(
+  2) :
+    VERSION_OK=yes ;; #(
+  *) :
+     ;;
+esac
+fi
+         if test -z "${VERSION_OK}"; then
+           { $as_echo "$as_me:${as_lineno-$LINENO}: result: requires version >=  found ${SSL_version}." >&5
+$as_echo "requires version >=  found ${SSL_version}." >&6; }
+         else
+           if test -z "${SSL_SHARED}"; then
+             SSL_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINDING_PKGS 2>/dev/null`"
+             liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} ${SSL_PACKAGES}"
+             W_SSL=yes
+           else
+             ssl_packages="`${OCAMLFIND} query -r -separator " " -format "%p" $BINDING_PKGS 2>/dev/null`"
+             W_SSL=ssl
+           fi
+           LIBS_VERSIONS="${LIBS_VERSIONS} ssl=$SSL_version"
+           { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+         fi
+     fi
+  else
+    SSL_STOP_CHECK=
+    SSL_version="[unknown version]"
+    SSL_requires=
+    if test -r ${with_ssl_dir}/META >/dev/null 2>&1; then
+      # Grab version
+      SSL_version=`cat "${with_ssl_dir}/META" | grep version | cut -d'=' -f 2 | tr -d ' ' | tr -d '"' | head -n 1`
+      if test -z "" ; then
+    VERSION_OK=yes
+  else
+    as_arg_v1=${SSL_version}
+as_arg_v2=
+awk "$as_awk_strverscmp" v1="$as_arg_v1" v2="$as_arg_v2" /dev/null
+case $? in #(
+  1) :
+    VERSION_OK= ;; #(
+  0) :
+    VERSION_OK=yes ;; #(
+  2) :
+    VERSION_OK=yes ;; #(
+  *) :
+     ;;
+esac
+fi
+      if test -z "${VERSION_OK}"; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: requires version >=  found ${SSL_version}." >&5
+$as_echo "requires version >=  found ${SSL_version}." >&6; }
+        SSL_STOP_CHECK=yes
+      fi
+      SSL_requires=`cat "${with_ssl_dir}/META" | grep 'requires' | cut -d '=' -f 2 | tr -d '"'`
+      SSL_path="${with_ssl_dir}"
+    else
+      SSL_path=`${OCAMLFIND} -query ssl 2>/dev/null`
+      if ! test -z ""; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: cannot find version from META file." >&5
+$as_echo "cannot find version from META file." >&6; }
+        SSL_STOP_CHECK=yes
+      fi
+    fi
+    if test -z "${SSL_STOP_CHECK}"; then
+      SSL_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINGING_PKGS 2>/dev/null`"
+      echo ${with_ssl_dir} | grep ^/ > /dev/null 2>&1 \
+          || with_ssl_dir=${PWD}/${with_ssl_dir}
+      if test -z "${SSL_SHARED}"; then
+        liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} -I ${with_ssl_dir} ${SSL_PACKAGES}"
+      else
+        ssl_ocamlcflags="-I ${with_ssl_dir} ${SSL_PACKAGES}"
+      fi
+      # We need to recurse here because
+      # some package may not be registered using ocamlfind
+      if test -n ""; then
+        SSL_CMA=.${cma}
+      else
+        SSL_CMA=ssl.${cma}
+      fi
+      for i in ${SSL_requires}; do
+        SSL_PACKAGES="${SSL_PACKAGES} `${OCAMLFIND} query -separator " " -format "-package %p" $i 2>/dev/null`"
+      done
+      if test -z "${SSL_SHARED}"; then
+        liquidsoap_ocamllflags="${liquidsoap_ocamllflags} ${SSL_PACKAGES} ${SSL_CMA}"
+        W_SSL=yes
+      else
+        ssl_ocamllflags="${SSL_PACKAGES} ${SSL_CMA}"
+        W_SSL=ssl
+      fi
+      LIBS_VERSIONS="${LIBS_VERSIONS} ssl=$SSL_version"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+    fi
+  fi
+fi
+
+
+if test -z "${W_SSL}" ; then
+    w_SSL="no (requires ssl)"
+else
+    if test -z "${SSL_SHARED}"; then
+      w_SSL=yes
+    else
+      PLUGINS_DATA="$PLUGINS_DATA
+ssl_ocamlcflags=${ssl_ocamlcflags}
+ssl_ocamllflags=${ssl_ocamllflags}
+ssl_packages=${ssl_packages}"
+      w_SSL=plugin
+    fi
+fi
+
+if test "$w_SSL" == "yes"; then
+  INC="$INC `$OCAMLFIND query ssl`"
+  DUPPY_SSL="duppy_ssl"
+  DUPPY_SSL_META="package \"ssl\" (
+  description = \"OCaml advanced scheduler (SSL module)\"
+  requires = \"duppy ssl\"
+  version=\"${VERSION}\"
+  archive(byte) = \"duppy_ssl.cma\"
+  archive(native) = \"duppy_ssl.cmxa\"
+)"
+fi
+
+
+
+
+
+
+
+
+if test -n ""; then
+  BINDING_PKGS=""
+else
+  BINDING_PKGS="osx-secure-transport"
+fi
+
+
+# Check whether --with-osx_secure_transport-dir was given.
+if test "${with_osx_secure_transport_dir+set}" = set; then :
+  withval=$with_osx_secure_transport_dir;
+fi
+
+
+# Check whether --enable-osx-secure-transport-dynamic-plugin was given.
+if test "${enable_osx_secure_transport_dynamic_plugin+set}" = set; then :
+  enableval=$enable_osx_secure_transport_dynamic_plugin;
+fi
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ocaml osx-secure-transport module" >&5
+$as_echo_n "checking for ocaml osx-secure-transport module... " >&6; }
+
+OCAML_CHECK="${OCAMLFIND} query osx-secure-transport"
+
+
+if test "x$enable_osx_secure_transport_dynamic_plugin" = "xyes" ; then
+  OSX_SECURE_TRANSPORT_SHARED="yes"
+  PLUGINS="$PLUGINS osx_secure_transport"
+fi
+
+
+DEPS_CHECK=yes
+for i in ; do
+  eval "dep_check=\$W_$i"
+  if test -z "${dep_check}"; then
+    DEPS_CHECK=
+    break
+  fi
+done
+if test -z $DEPS_CHECK; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: osx_secure_transport needs " >&5
+$as_echo "osx_secure_transport needs " >&6; }
+else
+  if test -z "${with_osx_secure_transport_dir}" ; then
+     if ! ${OCAML_CHECK} > /dev/null 2>&1 ; then
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: Not found." >&5
+$as_echo "Not found." >&6; }
+     else
+         OSX_SECURE_TRANSPORT_version="`${OCAMLFIND} query -format "%v" osx-secure-transport 2>/dev/null`"
+         if test -z "" ; then
+    VERSION_OK=yes
+  else
+    as_arg_v1=${OSX_SECURE_TRANSPORT_version}
+as_arg_v2=
+awk "$as_awk_strverscmp" v1="$as_arg_v1" v2="$as_arg_v2" /dev/null
+case $? in #(
+  1) :
+    VERSION_OK= ;; #(
+  0) :
+    VERSION_OK=yes ;; #(
+  2) :
+    VERSION_OK=yes ;; #(
+  *) :
+     ;;
+esac
+fi
+         if test -z "${VERSION_OK}"; then
+           { $as_echo "$as_me:${as_lineno-$LINENO}: result: requires version >=  found ${OSX_SECURE_TRANSPORT_version}." >&5
+$as_echo "requires version >=  found ${OSX_SECURE_TRANSPORT_version}." >&6; }
+         else
+           if test -z "${OSX_SECURE_TRANSPORT_SHARED}"; then
+             OSX_SECURE_TRANSPORT_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINDING_PKGS 2>/dev/null`"
+             liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} ${OSX_SECURE_TRANSPORT_PACKAGES}"
+             W_OSX_SECURE_TRANSPORT=yes
+           else
+             osx_secure_transport_packages="`${OCAMLFIND} query -r -separator " " -format "%p" $BINDING_PKGS 2>/dev/null`"
+             W_OSX_SECURE_TRANSPORT=osx_secure_transport
+           fi
+           LIBS_VERSIONS="${LIBS_VERSIONS} osx-secure-transport=$OSX_SECURE_TRANSPORT_version"
+           { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+         fi
+     fi
+  else
+    OSX_SECURE_TRANSPORT_STOP_CHECK=
+    OSX_SECURE_TRANSPORT_version="[unknown version]"
+    OSX_SECURE_TRANSPORT_requires=
+    if test -r ${with_osx_secure_transport_dir}/META >/dev/null 2>&1; then
+      # Grab version
+      OSX_SECURE_TRANSPORT_version=`cat "${with_osx_secure_transport_dir}/META" | grep version | cut -d'=' -f 2 | tr -d ' ' | tr -d '"' | head -n 1`
+      if test -z "" ; then
+    VERSION_OK=yes
+  else
+    as_arg_v1=${OSX_SECURE_TRANSPORT_version}
+as_arg_v2=
+awk "$as_awk_strverscmp" v1="$as_arg_v1" v2="$as_arg_v2" /dev/null
+case $? in #(
+  1) :
+    VERSION_OK= ;; #(
+  0) :
+    VERSION_OK=yes ;; #(
+  2) :
+    VERSION_OK=yes ;; #(
+  *) :
+     ;;
+esac
+fi
+      if test -z "${VERSION_OK}"; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: requires version >=  found ${OSX_SECURE_TRANSPORT_version}." >&5
+$as_echo "requires version >=  found ${OSX_SECURE_TRANSPORT_version}." >&6; }
+        OSX_SECURE_TRANSPORT_STOP_CHECK=yes
+      fi
+      OSX_SECURE_TRANSPORT_requires=`cat "${with_osx_secure_transport_dir}/META" | grep 'requires' | cut -d '=' -f 2 | tr -d '"'`
+      OSX_SECURE_TRANSPORT_path="${with_osx_secure_transport_dir}"
+    else
+      OSX_SECURE_TRANSPORT_path=`${OCAMLFIND} -query osx-secure-transport 2>/dev/null`
+      if ! test -z ""; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: cannot find version from META file." >&5
+$as_echo "cannot find version from META file." >&6; }
+        OSX_SECURE_TRANSPORT_STOP_CHECK=yes
+      fi
+    fi
+    if test -z "${OSX_SECURE_TRANSPORT_STOP_CHECK}"; then
+      OSX_SECURE_TRANSPORT_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINGING_PKGS 2>/dev/null`"
+      echo ${with_osx_secure_transport_dir} | grep ^/ > /dev/null 2>&1 \
+          || with_osx_secure_transport_dir=${PWD}/${with_osx_secure_transport_dir}
+      if test -z "${OSX_SECURE_TRANSPORT_SHARED}"; then
+        liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} -I ${with_osx_secure_transport_dir} ${OSX_SECURE_TRANSPORT_PACKAGES}"
+      else
+        osx_secure_transport_ocamlcflags="-I ${with_osx_secure_transport_dir} ${OSX_SECURE_TRANSPORT_PACKAGES}"
+      fi
+      # We need to recurse here because
+      # some package may not be registered using ocamlfind
+      if test -n ""; then
+        OSX_SECURE_TRANSPORT_CMA=.${cma}
+      else
+        OSX_SECURE_TRANSPORT_CMA=osx-secure-transport.${cma}
+      fi
+      for i in ${OSX_SECURE_TRANSPORT_requires}; do
+        OSX_SECURE_TRANSPORT_PACKAGES="${OSX_SECURE_TRANSPORT_PACKAGES} `${OCAMLFIND} query -separator " " -format "-package %p" $i 2>/dev/null`"
+      done
+      if test -z "${OSX_SECURE_TRANSPORT_SHARED}"; then
+        liquidsoap_ocamllflags="${liquidsoap_ocamllflags} ${OSX_SECURE_TRANSPORT_PACKAGES} ${OSX_SECURE_TRANSPORT_CMA}"
+        W_OSX_SECURE_TRANSPORT=yes
+      else
+        osx_secure_transport_ocamllflags="${OSX_SECURE_TRANSPORT_PACKAGES} ${OSX_SECURE_TRANSPORT_CMA}"
+        W_OSX_SECURE_TRANSPORT=osx_secure_transport
+      fi
+      LIBS_VERSIONS="${LIBS_VERSIONS} osx-secure-transport=$OSX_SECURE_TRANSPORT_version"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+    fi
+  fi
+fi
+
+
+if test -z "${W_OSX_SECURE_TRANSPORT}" ; then
+    w_OSX_SECURE_TRANSPORT="no (requires osx-secure-transport)"
+else
+    if test -z "${OSX_SECURE_TRANSPORT_SHARED}"; then
+      w_OSX_SECURE_TRANSPORT=yes
+    else
+      PLUGINS_DATA="$PLUGINS_DATA
+osx_secure_transport_ocamlcflags=${osx_secure_transport_ocamlcflags}
+osx_secure_transport_ocamllflags=${osx_secure_transport_ocamllflags}
+osx_secure_transport_packages=${osx_secure_transport_packages}"
+      w_OSX_SECURE_TRANSPORT=plugin
+    fi
+fi
+
+if test "$w_OSX_SECURE_TRANSPORT" == "yes"; then
+  INC="$INC `$OCAMLFIND query osx-secure-transport`"
+  DUPPY_SECURE_TRANSPORT="duppy_secure_transport"
+  DUPPY_SECURE_TRANSPORT_META="package \"secure_transport\" (
+  description = \"OCaml advanced scheduler (SecureTransport module)\"
+  requires = \"duppy secure_transport\"
+  version=\"${VERSION}\"
+  archive(byte) = \"duppy_secure_transport.cma\"
+  archive(native) = \"duppy_secure_transport.cmxa\"
+)"
+fi
+
+
+
+# substitutions to perform
+requires="unix threads pcre bigarray"
+
+ALL_INC="`ocamlfind query -r -separator " " $requires` $_INC"
+INC="$INC $_INC"
+
+
+all_requires="`ocamlfind query -r -separator " " -format "%p" $requires` $_requires"
+requires="$requires $_requires"
+
+
+
+# Finally create the Makefile and samples
+ac_config_files="$ac_config_files Makefile"
+
+ac_config_files="$ac_config_files src/META"
+
+ac_config_files="$ac_config_files src/Makefile"
+
+ac_config_files="$ac_config_files examples/Makefile.telnet"
+
+ac_config_files="$ac_config_files examples/Makefile.http"
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# Transform confdefs.h into DEFS.
+# Protect against shell expansion while executing Makefile rules.
+# Protect against Makefile macro expansion.
+#
+# If the first sed substitution is executed (which looks for macros that
+# take arguments), then branch to the quote section.  Otherwise,
+# look for a macro that doesn't take arguments.
+ac_script='
+:mline
+/\\$/{
+ N
+ s,\\\n,,
+ b mline
+}
+t clear
+:clear
+s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 (][^	 (]*([^)]*)\)[	 ]*\(.*\)/-D\1=\2/g
+t quote
+s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 ][^	 ]*\)[	 ]*\(.*\)/-D\1=\2/g
+t quote
+b any
+:quote
+s/[	 `~#$^&*(){}\\|;'\''"<>?]/\\&/g
+s/\[/\\&/g
+s/\]/\\&/g
+s/\$/$$/g
+H
+:any
+${
+	g
+	s/^\n//
+	s/\n/ /g
+	p
+}
+'
+DEFS=`sed -n "$ac_script" confdefs.h`
+
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by ocaml-duppy $as_me 0.8.0, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+      --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+
+Configuration files:
+$config_files
+
+Report bugs to <savonet-users@lists.sourceforge.net>."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+ocaml-duppy config.status 0.8.0
+configured by $0, generated by GNU Autoconf 2.69,
+  with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+INSTALL='$INSTALL'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=?*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
+    esac
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --he | --h |  --help | --hel | -h )
+    $as_echo "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+  *) as_fn_append ac_config_targets " $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  shift
+  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  CONFIG_SHELL='$SHELL'
+  export CONFIG_SHELL
+  exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+  $as_echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+    "src/META") CONFIG_FILES="$CONFIG_FILES src/META" ;;
+    "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
+    "examples/Makefile.telnet") CONFIG_FILES="$CONFIG_FILES examples/Makefile.telnet" ;;
+    "examples/Makefile.http") CONFIG_FILES="$CONFIG_FILES examples/Makefile.http" ;;
+
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp= ac_tmp=
+  trap 'exit_status=$?
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+  trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+  ac_cs_awk_cr='\\r'
+else
+  ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+  echo "cat >conf$$subs.awk <<_ACEOF" &&
+  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+  echo "_ACEOF"
+} >conf$$subs.sh ||
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  . ./conf$$subs.sh ||
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' <conf$$subs.awk | sed '
+/^[^""]/{
+  N
+  s/\n//
+}
+' >>$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+  for (key in S) S_is_set[key] = 1
+  FS = ""
+
+}
+{
+  line = $ 0
+  nfields = split(line, field, "@")
+  substed = 0
+  len = length(field[1])
+  for (i = 2; i < nfields; i++) {
+    key = field[i]
+    keylen = length(key)
+    if (S_is_set[key]) {
+      value = S[key]
+      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+      len += length(value) + length(field[++i])
+      substed = 1
+    } else
+      len += 1 + keylen
+  }
+
+  print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+  cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+
+eval set X "  :F $CONFIG_FILES      "
+shift
+for ac_tag
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$ac_tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+      esac
+      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      as_fn_append ac_file_inputs " '$ac_f'"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input='Generated from '`
+	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	`' by configure.'
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+$as_echo "$as_me: creating $ac_file" >&6;}
+    fi
+    # Neutralize special characters interpreted by sed in replacement strings.
+    case $configure_input in #(
+    *\&* | *\|* | *\\* )
+       ac_sed_conf_input=`$as_echo "$configure_input" |
+       sed 's/[\\\\&|]/\\\\&/g'`;; #(
+    *) ac_sed_conf_input=$configure_input;;
+    esac
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  as_dir="$ac_dir"; as_fn_mkdir_p
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+  esac
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+  s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&2;}
+
+  rm -f "$ac_tmp/stdin"
+  case $ac_file in
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  esac \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+
+
+
+  esac
+
+
+  case $ac_file$ac_mode in
+    "Makefile":F) chmod a-w Makefile ;;
+
+  esac
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..34f56d1
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,65 @@
+AC_INIT([ocaml-duppy],[0.8.0],[savonet-users@lists.sourceforge.net])
+
+VERSION=$PACKAGE_VERSION
+AC_SUBST(VERSION)
+AC_MSG_RESULT([configuring $PACKAGE_STRING])
+
+AC_BASE_CHECKS()
+
+AC_CHECK_OCAML_BINDING([pcre],[],[],[1])
+INC="$INC `$OCAMLFIND query pcre`"
+
+AC_CHECK_OCAML_BINDING([bytes],[],[],[1])
+INC="$INC `$OCAMLFIND query bytes`"
+
+AC_CHECK_OCAML_BINDING([ssl])
+
+if test "$w_SSL" == "yes"; then
+  INC="$INC `$OCAMLFIND query ssl`"
+  DUPPY_SSL="duppy_ssl"
+  DUPPY_SSL_META="package \"ssl\" (
+  description = \"OCaml advanced scheduler (SSL module)\"
+  requires = \"duppy ssl\"
+  version=\"${VERSION}\"
+  archive(byte) = \"duppy_ssl.cma\"
+  archive(native) = \"duppy_ssl.cmxa\"
+)"
+fi
+AC_SUBST(DUPPY_SSL)
+AC_SUBST(DUPPY_SSL_META)
+
+AC_CHECK_OCAML_BINDING([osx-secure-transport])
+
+if test "$w_OSX_SECURE_TRANSPORT" == "yes"; then
+  INC="$INC `$OCAMLFIND query osx-secure-transport`"
+  DUPPY_SECURE_TRANSPORT="duppy_secure_transport"
+  DUPPY_SECURE_TRANSPORT_META="package \"secure_transport\" (
+  description = \"OCaml advanced scheduler (SecureTransport module)\"
+  requires = \"duppy secure_transport\"
+  version=\"${VERSION}\"
+  archive(byte) = \"duppy_secure_transport.cma\"
+  archive(native) = \"duppy_secure_transport.cmxa\"
+)"
+fi
+AC_SUBST(DUPPY_SECURE_TRANSPORT)
+AC_SUBST(DUPPY_SECURE_TRANSPORT_META)
+
+# substitutions to perform
+requires="unix threads pcre bigarray"
+AC_SUBST(VERSION)
+ALL_INC="`ocamlfind query -r -separator " " $requires` $_INC"
+INC="$INC $_INC"
+AC_SUBST(INC)
+AC_SUBST(ALL_INC)
+all_requires="`ocamlfind query -r -separator " " -format "%p" $requires` $_requires"
+requires="$requires $_requires"
+AC_SUBST(requires)
+AC_SUBST(all_requires)
+
+# Finally create the Makefile and samples
+AC_CONFIG_FILES([Makefile],[chmod a-w Makefile])
+AC_CONFIG_FILES([src/META])
+AC_CONFIG_FILES([src/Makefile])
+AC_CONFIG_FILES([examples/Makefile.telnet])
+AC_CONFIG_FILES([examples/Makefile.http])
+AC_OUTPUT
diff --git a/examples/Makefile b/examples/Makefile
new file mode 100644
index 0000000..2b9d33d
--- /dev/null
+++ b/examples/Makefile
@@ -0,0 +1,12 @@
+# OCaml-Lastfm examples.
+#
+# Copyright 2007 by the Savonet team.
+#
+# $Id: Makefile 4694 2007-10-23 23:33:11Z smimram $
+
+all clean:
+	$(MAKE) -f Makefile.telnet $@
+	$(MAKE) -f Makefile.http $@
+
+distclean: clean
+	rm -rf autom4te.cache config.log config.status autom4te.cache
diff --git a/examples/Makefile.http.in b/examples/Makefile.http.in
new file mode 100644
index 0000000..d560b96
--- /dev/null
+++ b/examples/Makefile.http.in
@@ -0,0 +1,12 @@
+SOURCES = http.ml
+RESULT = http
+INCDIRS = ../src @ALL_INC@
+OCAMLC = @OCAMLC@ -thread
+OCAMLOPT = @OCAMLOPT@ -thread
+LIBS = @all_requires@ duppy
+PP = camlp4o -I ../src pa_duppy.cmo
+export PP
+
+all: nc
+
+-include OCamlMakefile
diff --git a/examples/Makefile.telnet.in b/examples/Makefile.telnet.in
new file mode 100644
index 0000000..5cc1869
--- /dev/null
+++ b/examples/Makefile.telnet.in
@@ -0,0 +1,12 @@
+SOURCES = telnet.ml
+RESULT = telnet
+INCDIRS = ../src @ALL_INC@
+OCAMLC = @OCAMLC@ -thread
+OCAMLOPT = @OCAMLOPT@ -thread
+LIBS = @all_requires@ duppy
+PP = camlp4o -I ../src pa_duppy.cmo
+export PP
+
+all: nc
+
+-include OCamlMakefile
diff --git a/examples/OCamlMakefile b/examples/OCamlMakefile
new file mode 100644
index 0000000..6f62c91
--- /dev/null
+++ b/examples/OCamlMakefile
@@ -0,0 +1,1154 @@
+###########################################################################
+#                              OCamlMakefile
+#                  Copyright (C) 1999-2004  Markus Mottl
+#
+#                             For updates see:
+#                http://www.ocaml.info/home/ocaml_sources.html
+#
+#        $Id: OCamlMakefile,v 1.72 2005/12/09 15:30:50 mottl Exp $
+#
+###########################################################################
+
+# Modified by damien for .glade.ml compilation
+
+# Set these variables to the names of the sources to be processed and
+# the result variable. Order matters during linkage!
+
+ifndef SOURCES
+  SOURCES := foo.ml
+endif
+export SOURCES
+
+ifndef RES_CLIB_SUF
+  RES_CLIB_SUF := _stubs
+endif
+export RES_CLIB_SUF
+
+ifndef RESULT
+  RESULT := foo
+endif
+export RESULT
+
+export LIB_PACK_NAME
+
+ifndef DOC_FILES
+  DOC_FILES := $(filter %.mli, $(SOURCES))
+endif
+export DOC_FILES
+
+export BCSUFFIX
+export NCSUFFIX
+
+ifndef TOPSUFFIX
+  TOPSUFFIX := .top
+endif
+export TOPSUFFIX
+
+# Eventually set include- and library-paths, libraries to link,
+# additional compilation-, link- and ocamlyacc-flags
+# Path- and library information needs not be written with "-I" and such...
+# Define THREADS if you need it, otherwise leave it unset (same for
+# USE_CAMLP4)!
+
+export THREADS
+export VMTHREADS
+export ANNOTATE
+export USE_CAMLP4
+
+export INCDIRS
+export LIBDIRS
+export EXTLIBDIRS
+export RESULTDEPS
+export OCAML_DEFAULT_DIRS
+
+export LIBS
+export CLIBS
+
+export OCAMLFLAGS
+export OCAMLNCFLAGS
+export OCAMLBCFLAGS
+
+export OCAMLLDFLAGS
+export OCAMLNLDFLAGS
+export OCAMLBLDFLAGS
+
+ifndef OCAMLCPFLAGS
+  OCAMLCPFLAGS := a
+endif
+
+export OCAMLCPFLAGS
+
+export PPFLAGS
+
+export YFLAGS
+export IDLFLAGS
+
+export OCAMLDOCFLAGS
+
+export OCAMLFIND_INSTFLAGS
+
+export DVIPSFLAGS
+
+export STATIC
+
+# Add a list of optional trash files that should be deleted by "make clean"
+export TRASH
+
+####################  variables depending on your OCaml-installation
+
+ifdef MINGW
+  export MINGW
+  WIN32   := 1
+  CFLAGS_WIN32 := -mno-cygwin
+endif
+ifdef MSVC
+  export MSVC
+  WIN32   := 1
+  ifndef STATIC
+    CPPFLAGS_WIN32 := -DCAML_DLL
+  endif
+  CFLAGS_WIN32 += -nologo
+  EXT_OBJ := obj
+  EXT_LIB := lib
+  ifeq ($(CC),gcc)
+    # work around GNU Make default value
+    ifdef THREADS
+      CC := cl -MT
+    else
+      CC := cl
+    endif
+  endif
+  ifeq ($(CXX),g++)
+    # work around GNU Make default value
+    CXX := $(CC)
+  endif
+  CFLAG_O := -Fo
+endif
+ifdef WIN32
+  EXT_CXX := cpp
+  EXE     := .exe
+endif
+
+ifndef EXT_OBJ
+  EXT_OBJ := o
+endif
+ifndef EXT_LIB
+  EXT_LIB := a
+endif
+ifndef EXT_CXX
+  EXT_CXX := cc
+endif
+ifndef EXE
+  EXE := # empty
+endif
+ifndef CFLAG_O
+  CFLAG_O := -o # do not delete this comment (preserves trailing whitespace)!
+endif
+
+export CC
+export CXX
+export CFLAGS
+export CXXFLAGS
+export LDFLAGS
+export CPPFLAGS
+
+ifndef RPATH_FLAG
+  RPATH_FLAG := -R
+endif
+export RPATH_FLAG
+
+ifndef MSVC
+ifndef PIC_CFLAGS
+  PIC_CFLAGS := -fPIC
+endif
+ifndef PIC_CPPFLAGS
+  PIC_CPPFLAGS := -DPIC
+endif
+endif
+
+export PIC_CFLAGS
+export PIC_CPPFLAGS
+
+BCRESULT  := $(addsuffix $(BCSUFFIX), $(RESULT))
+NCRESULT  := $(addsuffix $(NCSUFFIX), $(RESULT))
+TOPRESULT := $(addsuffix $(TOPSUFFIX), $(RESULT))
+
+ifndef OCAMLFIND
+  OCAMLFIND := ocamlfind
+endif
+export OCAMLFIND
+
+ifndef OCAMLC
+  OCAMLC := ocamlc
+endif
+export OCAMLC
+
+ifndef OCAMLOPT
+  OCAMLOPT := ocamlopt
+endif
+export OCAMLOPT
+
+ifndef OCAMLMKTOP
+  OCAMLMKTOP := ocamlmktop
+endif
+export OCAMLMKTOP
+
+ifndef OCAMLCP
+  OCAMLCP := ocamlcp
+endif
+export OCAMLCP
+
+ifndef OCAMLDEP
+  OCAMLDEP := ocamldep
+endif
+export OCAMLDEP
+
+ifndef OCAMLLEX
+  OCAMLLEX := ocamllex
+endif
+export OCAMLLEX
+
+ifndef OCAMLYACC
+  OCAMLYACC := ocamlyacc
+endif
+export OCAMLYACC
+
+ifndef OCAMLMKLIB
+  OCAMLMKLIB := ocamlmklib
+endif
+export OCAMLMKLIB
+
+ifndef OCAML_GLADECC
+  OCAML_GLADECC := lablgladecc2
+endif
+export OCAML_GLADECC
+
+ifndef OCAML_GLADECC_FLAGS
+  OCAML_GLADECC_FLAGS :=
+endif
+export OCAML_GLADECC_FLAGS
+
+ifndef CAMELEON_REPORT
+  CAMELEON_REPORT := report
+endif
+export CAMELEON_REPORT
+
+ifndef CAMELEON_REPORT_FLAGS
+  CAMELEON_REPORT_FLAGS :=
+endif
+export CAMELEON_REPORT_FLAGS
+
+ifndef CAMELEON_ZOGGY
+  CAMELEON_ZOGGY := camlp4o pa_zog.cma pr_o.cmo
+endif
+export CAMELEON_ZOGGY
+
+ifndef CAMELEON_ZOGGY_FLAGS
+  CAMELEON_ZOGGY_FLAGS :=
+endif
+export CAMELEON_ZOGGY_FLAGS
+
+ifndef OXRIDL
+  OXRIDL := oxridl
+endif
+export OXRIDL
+
+ifndef CAMLIDL
+  CAMLIDL := camlidl
+endif
+export CAMLIDL
+
+ifndef CAMLIDLDLL
+  CAMLIDLDLL := camlidldll
+endif
+export CAMLIDLDLL
+
+ifndef NOIDLHEADER
+  MAYBE_IDL_HEADER := -header
+endif
+export NOIDLHEADER
+
+export NO_CUSTOM
+
+ifndef CAMLP4
+  CAMLP4 := camlp4
+endif
+export CAMLP4
+
+ifndef REAL_OCAMLFIND
+  ifdef PACKS
+    ifndef CREATE_LIB
+      ifdef THREADS
+	PACKS += threads
+      endif
+    endif
+    empty :=
+    space := $(empty) $(empty)
+    comma := ,
+    ifdef PREDS
+      PRE_OCAML_FIND_PREDICATES := $(subst $(space),$(comma),$(PREDS))
+      PRE_OCAML_FIND_PACKAGES := $(subst $(space),$(comma),$(PACKS))
+      OCAML_FIND_PREDICATES := -predicates $(PRE_OCAML_FIND_PREDICATES)
+  #    OCAML_DEP_PREDICATES := -syntax $(PRE_OCAML_FIND_PREDICATES)
+      OCAML_FIND_PACKAGES := $(OCAML_FIND_PREDICATES) -package $(PRE_OCAML_FIND_PACKAGES)
+      OCAML_DEP_PACKAGES := $(OCAML_DEP_PREDICATES) -package $(PRE_OCAML_FIND_PACKAGES)
+    else
+      OCAML_FIND_PACKAGES := -package $(subst $(space),$(comma),$(PACKS))
+      OCAML_DEP_PACKAGES :=
+    endif
+    OCAML_FIND_LINKPKG := -linkpkg
+    REAL_OCAMLFIND := $(OCAMLFIND)
+  endif
+endif
+
+export OCAML_FIND_PACKAGES
+export OCAML_DEP_PACKAGES
+export OCAML_FIND_LINKPKG
+export REAL_OCAMLFIND
+
+ifndef OCAMLDOC
+  OCAMLDOC := ocamldoc
+endif
+export OCAMLDOC
+
+ifndef LATEX
+  LATEX := latex
+endif
+export LATEX
+
+ifndef DVIPS
+  DVIPS := dvips
+endif
+export DVIPS
+
+ifndef PS2PDF
+  PS2PDF := ps2pdf
+endif
+export PS2PDF
+
+ifndef OCAMLMAKEFILE
+  OCAMLMAKEFILE := OCamlMakefile
+endif
+export OCAMLMAKEFILE
+
+ifndef OCAMLLIBPATH
+  OCAMLLIBPATH := \
+    $(shell $(OCAMLC) 2>/dev/null -where || echo /usr/lib/ocaml)
+endif
+export OCAMLLIBPATH
+
+ifndef OCAML_LIB_INSTALL
+  OCAML_LIB_INSTALL := $(OCAMLLIBPATH)/contrib
+endif
+export OCAML_LIB_INSTALL
+
+###########################################################################
+
+####################  change following sections only if
+####################    you know what you are doing!
+
+# delete target files when a build command fails
+.PHONY: .DELETE_ON_ERROR
+.DELETE_ON_ERROR:
+
+# for pedants using "--warn-undefined-variables"
+export MAYBE_IDL
+export REAL_RESULT
+export CAMLIDLFLAGS
+export THREAD_FLAG
+export RES_CLIB
+export MAKEDLL
+export ANNOT_FLAG
+export C_OXRIDL
+export SUBPROJS
+export CFLAGS_WIN32
+export CPPFLAGS_WIN32
+
+INCFLAGS :=
+
+SHELL := /bin/sh
+
+MLDEPDIR := ._d
+BCDIDIR  := ._bcdi
+NCDIDIR  := ._ncdi
+
+FILTER_EXTNS := %.mli %.ml %.mll %.mly %.idl %.oxridl %.c %.$(EXT_CXX) %.rep %.zog %.glade
+
+FILTERED     := $(filter $(FILTER_EXTNS), $(SOURCES))
+SOURCE_DIRS  := $(filter-out ./, $(sort $(dir $(FILTERED))))
+
+FILTERED_REP := $(filter %.rep, $(FILTERED))
+DEP_REP      := $(FILTERED_REP:%.rep=$(MLDEPDIR)/%.d)
+AUTO_REP     := $(FILTERED_REP:.rep=.ml)
+
+FILTERED_ZOG := $(filter %.zog, $(FILTERED))
+DEP_ZOG      := $(FILTERED_ZOG:%.zog=$(MLDEPDIR)/%.d)
+AUTO_ZOG     := $(FILTERED_ZOG:.zog=.ml)
+
+FILTERED_GLADE := $(filter %.glade, $(FILTERED))
+DEP_GLADE      := $(FILTERED_GLADE:%.glade=$(MLDEPDIR)/%.d)
+AUTO_GLADE     := $(FILTERED_GLADE:.glade=.ml)
+
+FILTERED_ML  := $(filter %.ml, $(FILTERED))
+DEP_ML       := $(FILTERED_ML:%.ml=$(MLDEPDIR)/%.d)
+
+FILTERED_MLI := $(filter %.mli, $(FILTERED))
+DEP_MLI      := $(FILTERED_MLI:.mli=.di)
+
+FILTERED_MLL := $(filter %.mll, $(FILTERED))
+DEP_MLL      := $(FILTERED_MLL:%.mll=$(MLDEPDIR)/%.d)
+AUTO_MLL     := $(FILTERED_MLL:.mll=.ml)
+
+FILTERED_MLY := $(filter %.mly, $(FILTERED))
+DEP_MLY      := $(FILTERED_MLY:%.mly=$(MLDEPDIR)/%.d) $(FILTERED_MLY:.mly=.di)
+AUTO_MLY     := $(FILTERED_MLY:.mly=.mli) $(FILTERED_MLY:.mly=.ml)
+
+FILTERED_IDL := $(filter %.idl, $(FILTERED))
+DEP_IDL      := $(FILTERED_IDL:%.idl=$(MLDEPDIR)/%.d) $(FILTERED_IDL:.idl=.di)
+C_IDL        := $(FILTERED_IDL:%.idl=%_stubs.c)
+ifndef NOIDLHEADER
+ C_IDL += $(FILTERED_IDL:.idl=.h)
+endif
+OBJ_C_IDL    := $(FILTERED_IDL:%.idl=%_stubs.$(EXT_OBJ))
+AUTO_IDL     := $(FILTERED_IDL:.idl=.mli) $(FILTERED_IDL:.idl=.ml) $(C_IDL)
+
+FILTERED_OXRIDL := $(filter %.oxridl, $(FILTERED))
+DEP_OXRIDL      := $(FILTERED_OXRIDL:%.oxridl=$(MLDEPDIR)/%.d) $(FILTERED_OXRIDL:.oxridl=.di)
+AUTO_OXRIDL     := $(FILTERED_OXRIDL:.oxridl=.mli) $(FILTERED_OXRIDL:.oxridl=.ml) $(C_OXRIDL)
+
+FILTERED_C_CXX := $(filter %.c %.$(EXT_CXX), $(FILTERED))
+OBJ_C_CXX      := $(FILTERED_C_CXX:.c=.$(EXT_OBJ))
+OBJ_C_CXX      := $(OBJ_C_CXX:.$(EXT_CXX)=.$(EXT_OBJ))
+
+PRE_TARGETS  += $(AUTO_MLL) $(AUTO_MLY) $(AUTO_IDL) $(AUTO_OXRIDL) $(AUTO_ZOG) $(AUTO_REP) $(AUTO_GLADE)
+
+ALL_DEPS     := $(DEP_ML) $(DEP_MLI) $(DEP_MLL) $(DEP_MLY) $(DEP_IDL) $(DEP_OXRIDL) $(DEP_ZOG) $(DEP_REP) $(DEP_GLADE)
+
+MLDEPS       := $(filter %.d, $(ALL_DEPS))
+MLIDEPS      := $(filter %.di, $(ALL_DEPS))
+BCDEPIS      := $(MLIDEPS:%.di=$(BCDIDIR)/%.di)
+NCDEPIS      := $(MLIDEPS:%.di=$(NCDIDIR)/%.di)
+
+ALLML        := $(filter %.mli %.ml %.mll %.mly %.idl %.oxridl %.rep %.zog %.glade, $(FILTERED))
+
+IMPLO_INTF   := $(ALLML:%.mli=%.mli.__)
+IMPLO_INTF   := $(foreach file, $(IMPLO_INTF), \
+                  $(basename $(file)).cmi $(basename $(file)).cmo)
+IMPLO_INTF   := $(filter-out %.mli.cmo, $(IMPLO_INTF))
+IMPLO_INTF   := $(IMPLO_INTF:%.mli.cmi=%.cmi)
+
+IMPLX_INTF   := $(IMPLO_INTF:.cmo=.cmx)
+
+INTF         := $(filter %.cmi, $(IMPLO_INTF))
+IMPL_CMO     := $(filter %.cmo, $(IMPLO_INTF))
+IMPL_CMX     := $(IMPL_CMO:.cmo=.cmx)
+IMPL_ASM     := $(IMPL_CMO:.cmo=.asm)
+IMPL_S       := $(IMPL_CMO:.cmo=.s)
+
+OBJ_LINK     := $(OBJ_C_IDL) $(OBJ_C_CXX)
+OBJ_FILES    := $(IMPL_CMO:.cmo=.$(EXT_OBJ)) $(OBJ_LINK)
+
+EXECS        := $(addsuffix $(EXE), \
+                            $(sort $(TOPRESULT) $(BCRESULT) $(NCRESULT)))
+ifdef WIN32
+  EXECS      += $(BCRESULT).dll $(NCRESULT).dll
+endif
+
+CLIB_BASE    := $(RESULT)$(RES_CLIB_SUF)
+ifneq ($(strip $(OBJ_LINK)),)
+  RES_CLIB     := lib$(CLIB_BASE).$(EXT_LIB)
+endif
+
+ifdef WIN32
+DLLSONAME := $(CLIB_BASE).dll
+else
+DLLSONAME := dll$(CLIB_BASE).so
+endif
+
+NONEXECS     := $(INTF) $(IMPL_CMO) $(IMPL_CMX) $(IMPL_ASM) $(IMPL_S) \
+		$(OBJ_FILES) $(PRE_TARGETS) $(BCRESULT).cma $(NCRESULT).cmxa \
+		$(NCRESULT).$(EXT_LIB) $(BCRESULT).cmi $(BCRESULT).cmo \
+		$(NCRESULT).cmi $(NCRESULT).cmx $(NCRESULT).o \
+		$(RES_CLIB) $(IMPL_CMO:.cmo=.annot) \
+		$(LIB_PACK_NAME).cmi $(LIB_PACK_NAME).cmo $(LIB_PACK_NAME).cmx $(LIB_PACK_NAME).o
+
+ifndef STATIC
+  NONEXECS += $(DLLSONAME)
+endif
+
+ifndef LIBINSTALL_FILES
+  LIBINSTALL_FILES := $(RESULT).mli $(RESULT).cmi $(RESULT).cma \
+		      $(RESULT).cmxa $(RESULT).$(EXT_LIB) $(RES_CLIB)
+  ifndef STATIC
+    ifneq ($(strip $(OBJ_LINK)),)
+      LIBINSTALL_FILES += $(DLLSONAME)
+    endif
+  endif
+endif
+
+export LIBINSTALL_FILES
+
+ifdef WIN32
+  # some extra stuff is created while linking DLLs
+  NONEXECS   += $(BCRESULT).$(EXT_LIB) $(BCRESULT).exp $(NCRESULT).exp $(CLIB_BASE).exp $(CLIB_BASE).lib
+endif
+
+TARGETS      := $(EXECS) $(NONEXECS)
+
+# If there are IDL-files
+ifneq ($(strip $(FILTERED_IDL)),)
+  MAYBE_IDL := -cclib -lcamlidl
+endif
+
+ifdef USE_CAMLP4
+  CAMLP4PATH := \
+    $(shell $(CAMLP4) -where 2>/dev/null || echo /usr/lib/camlp4)
+  INCFLAGS := -I $(CAMLP4PATH)
+  CINCFLAGS := -I$(CAMLP4PATH)
+endif
+
+DINCFLAGS := $(INCFLAGS) $(SOURCE_DIRS:%=-I %) $(OCAML_DEFAULT_DIRS:%=-I %)
+INCFLAGS := $(DINCFLAGS) $(INCDIRS:%=-I %)
+CINCFLAGS += $(SOURCE_DIRS:%=-I%) $(INCDIRS:%=-I%) $(OCAML_DEFAULT_DIRS:%=-I%)
+
+ifndef MSVC
+CLIBFLAGS += $(SOURCE_DIRS:%=-L%) $(LIBDIRS:%=-L%) \
+             $(EXTLIBDIRS:%=-L%) $(EXTLIBDIRS:%=-Wl,$(RPATH_FLAG)%) \
+             $(OCAML_DEFAULT_DIRS:%=-L%)
+endif
+
+ifndef PROFILING
+  INTF_OCAMLC := $(OCAMLC)
+else
+  ifndef THREADS
+    INTF_OCAMLC := $(OCAMLCP) -p $(OCAMLCPFLAGS)
+  else
+    # OCaml does not support profiling byte code
+    # with threads (yet), therefore we force an error.
+    ifndef REAL_OCAMLC
+      $(error Profiling of multithreaded byte code not yet supported by OCaml)
+    endif
+    INTF_OCAMLC := $(OCAMLC)
+  endif
+endif
+
+ifndef MSVC
+COMMON_LDFLAGS := $(LDFLAGS:%=-ccopt %) $(SOURCE_DIRS:%=-ccopt -L%) \
+		  $(LIBDIRS:%=-ccopt -L%) $(EXTLIBDIRS:%=-ccopt -L%) \
+		  $(EXTLIBDIRS:%=-ccopt -Wl,$(RPATH_FLAG)%) \
+		  $(OCAML_DEFAULT_DIRS:%=-ccopt -L%)
+else
+COMMON_LDFLAGS := -ccopt "/link -NODEFAULTLIB:LIBC $(LDFLAGS:%=%) $(SOURCE_DIRS:%=-LIBPATH:%) \
+		  $(LIBDIRS:%=-LIBPATH:%) $(EXTLIBDIRS:%=-LIBPATH:%) \
+		  $(OCAML_DEFAULT_DIRS:%=-LIBPATH:%) "
+endif
+
+CLIBS_OPTS := $(CLIBS:%=-cclib -l%)
+ifdef MSVC
+  ifndef STATIC
+  # MSVC libraries do not have 'lib' prefix
+  CLIBS_OPTS := $(CLIBS:%=-cclib %.lib)
+  endif
+endif
+
+ifneq ($(strip $(OBJ_LINK)),)
+  ifdef CREATE_LIB
+    OBJS_LIBS := -cclib -l$(CLIB_BASE) $(CLIBS_OPTS) $(MAYBE_IDL)
+  else
+    OBJS_LIBS := $(OBJ_LINK) $(CLIBS_OPTS) $(MAYBE_IDL)
+  endif
+else
+  OBJS_LIBS := $(CLIBS_OPTS) $(MAYBE_IDL)
+endif
+
+# If we have to make byte-code
+ifndef REAL_OCAMLC
+  BYTE_OCAML := y
+
+  # EXTRADEPS is added dependencies we have to insert for all
+  # executable files we generate.  Ideally it should be all of the
+  # libraries we use, but it's hard to find the ones that get searched on
+  # the path since I don't know the paths built into the compiler, so
+  # just include the ones with slashes in their names.
+  EXTRADEPS := $(addsuffix .cma,$(foreach i,$(LIBS),$(if $(findstring /,$(i)),$(i))))
+  SPECIAL_OCAMLFLAGS := $(OCAMLBCFLAGS)
+
+  REAL_OCAMLC := $(INTF_OCAMLC)
+
+  REAL_IMPL := $(IMPL_CMO)
+  REAL_IMPL_INTF := $(IMPLO_INTF)
+  IMPL_SUF := .cmo
+
+  DEPFLAGS  :=
+  MAKE_DEPS := $(MLDEPS) $(BCDEPIS)
+
+  ifdef CREATE_LIB
+    override CFLAGS := $(PIC_CFLAGS) $(CFLAGS)
+    override CPPFLAGS := $(PIC_CPPFLAGS) $(CPPFLAGS)
+    ifndef STATIC
+      ifneq ($(strip $(OBJ_LINK)),)
+	MAKEDLL := $(DLLSONAME)
+	ALL_LDFLAGS := -dllib $(DLLSONAME)
+      endif
+    endif
+  endif
+
+  ifndef NO_CUSTOM
+    ifneq "$(strip $(OBJ_LINK) $(THREADS) $(MAYBE_IDL) $(CLIBS))" ""
+      ALL_LDFLAGS += -custom
+    endif
+  endif
+
+  ALL_LDFLAGS += $(INCFLAGS) $(OCAMLLDFLAGS) $(OCAMLBLDFLAGS) \
+                 $(COMMON_LDFLAGS) $(LIBS:%=%.cma)
+  CAMLIDLDLLFLAGS :=
+
+  ifdef THREADS
+    ifdef VMTHREADS
+      THREAD_FLAG := -vmthread
+    else
+      THREAD_FLAG := -thread
+    endif
+    ALL_LDFLAGS := $(THREAD_FLAG) $(ALL_LDFLAGS)
+    ifndef CREATE_LIB
+      ifndef REAL_OCAMLFIND
+        ALL_LDFLAGS := unix.cma threads.cma $(ALL_LDFLAGS)
+      endif
+    endif
+  endif
+
+# we have to make native-code
+else
+  EXTRADEPS := $(addsuffix .cmxa,$(foreach i,$(LIBS),$(if $(findstring /,$(i)),$(i))))
+  ifndef PROFILING
+    SPECIAL_OCAMLFLAGS := $(OCAMLNCFLAGS)
+    PLDFLAGS :=
+  else
+    SPECIAL_OCAMLFLAGS := -p $(OCAMLNCFLAGS)
+    PLDFLAGS := -p
+  endif
+
+  REAL_IMPL := $(IMPL_CMX)
+  REAL_IMPL_INTF := $(IMPLX_INTF)
+  IMPL_SUF := .cmx
+
+  override CPPFLAGS := -DNATIVE_CODE $(CPPFLAGS)
+
+  DEPFLAGS  := -native
+  MAKE_DEPS := $(MLDEPS) $(NCDEPIS)
+
+  ALL_LDFLAGS := $(PLDFLAGS) $(INCFLAGS) $(OCAMLLDFLAGS) \
+                 $(OCAMLNLDFLAGS) $(COMMON_LDFLAGS)
+  CAMLIDLDLLFLAGS := -opt
+
+  ifndef CREATE_LIB
+    ALL_LDFLAGS += $(LIBS:%=%.cmxa)
+  else
+    override CFLAGS := $(PIC_CFLAGS) $(CFLAGS)
+    override CPPFLAGS := $(PIC_CPPFLAGS) $(CPPFLAGS)
+  endif
+
+  ifdef THREADS
+    THREAD_FLAG := -thread
+    ALL_LDFLAGS := $(THREAD_FLAG) $(ALL_LDFLAGS)
+    ifndef CREATE_LIB
+      ifndef REAL_OCAMLFIND
+        ALL_LDFLAGS := unix.cmxa threads.cmxa $(ALL_LDFLAGS)
+      endif
+    endif
+  endif
+endif
+
+export MAKE_DEPS
+
+ifdef ANNOTATE
+  ANNOT_FLAG := -dtypes
+else
+endif
+
+ALL_OCAMLCFLAGS := $(THREAD_FLAG) $(ANNOT_FLAG) $(OCAMLFLAGS) \
+                   $(INCFLAGS) $(SPECIAL_OCAMLFLAGS)
+
+ifdef make_deps
+  -include $(MAKE_DEPS)
+  PRE_TARGETS :=
+endif
+
+###########################################################################
+# USER RULES
+
+# Call "OCamlMakefile QUIET=" to get rid of all of the @'s.
+QUIET=@
+
+# generates byte-code (default)
+byte-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(BCRESULT) \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes
+bc:	byte-code
+
+byte-code-nolink:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) nolink \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes
+bcnl:	byte-code-nolink
+
+top:			$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(TOPRESULT) \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes
+
+# generates native-code
+
+native-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(NCRESULT) \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				make_deps=yes
+nc:	native-code
+
+native-code-nolink:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) nolink \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				make_deps=yes
+ncnl:	native-code-nolink
+
+# generates byte-code libraries
+byte-code-library:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(BCRESULT).cma \
+				REAL_RESULT="$(BCRESULT)" \
+				CREATE_LIB=yes \
+				make_deps=yes
+bcl:	byte-code-library
+
+# generates native-code libraries
+native-code-library:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(NCRESULT).cmxa \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				CREATE_LIB=yes \
+				make_deps=yes
+ncl:	native-code-library
+
+ifdef WIN32
+# generates byte-code dll
+byte-code-dll:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(BCRESULT).dll \
+				REAL_RESULT="$(BCRESULT)" \
+				make_deps=yes
+bcd:	byte-code-dll
+
+# generates native-code dll
+native-code-dll:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(NCRESULT).dll \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				make_deps=yes
+ncd:	native-code-dll
+endif
+
+# generates byte-code with debugging information
+debug-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(BCRESULT) \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes \
+				OCAMLFLAGS="-g $(OCAMLFLAGS)" \
+				OCAMLLDFLAGS="-g $(OCAMLLDFLAGS)"
+dc:	debug-code
+
+debug-code-nolink:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) nolink \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes \
+				OCAMLFLAGS="-g $(OCAMLFLAGS)" \
+				OCAMLLDFLAGS="-g $(OCAMLLDFLAGS)"
+dcnl:	debug-code-nolink
+
+# generates byte-code libraries with debugging information
+debug-code-library:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(BCRESULT).cma \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes \
+				CREATE_LIB=yes \
+				OCAMLFLAGS="-g $(OCAMLFLAGS)" \
+				OCAMLLDFLAGS="-g $(OCAMLLDFLAGS)"
+dcl:	debug-code-library
+
+# generates byte-code for profiling
+profiling-byte-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(BCRESULT) \
+				REAL_RESULT="$(BCRESULT)" PROFILING="y" \
+				make_deps=yes
+pbc:	profiling-byte-code
+
+# generates native-code
+
+profiling-native-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(NCRESULT) \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				PROFILING="y" \
+				make_deps=yes
+pnc:	profiling-native-code
+
+# generates byte-code libraries
+profiling-byte-code-library:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(BCRESULT).cma \
+				REAL_RESULT="$(BCRESULT)" PROFILING="y" \
+				CREATE_LIB=yes \
+				make_deps=yes
+pbcl:	profiling-byte-code-library
+
+# generates native-code libraries
+profiling-native-code-library:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(NCRESULT).cmxa \
+				REAL_RESULT="$(NCRESULT)" PROFILING="y" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				CREATE_LIB=yes \
+				make_deps=yes
+pncl:	profiling-native-code-library
+
+# packs byte-code objects
+pack-byte-code:			$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(BCRESULT).cmo \
+				REAL_RESULT="$(BCRESULT)" \
+				PACK_LIB=yes make_deps=yes
+pabc:	pack-byte-code
+
+# packs native-code objects
+pack-native-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(NCRESULT).cmx $(NCRESULT).o \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				PACK_LIB=yes make_deps=yes
+panc:	pack-native-code
+
+# generates HTML-documentation
+htdoc:	doc/$(RESULT)/html
+
+# generates Latex-documentation
+ladoc:	doc/$(RESULT)/latex
+
+# generates PostScript-documentation
+psdoc:	doc/$(RESULT)/latex/doc.ps
+
+# generates PDF-documentation
+pdfdoc:	doc/$(RESULT)/latex/doc.pdf
+
+# generates all supported forms of documentation
+doc: htdoc ladoc psdoc pdfdoc
+
+###########################################################################
+# LOW LEVEL RULES
+
+$(REAL_RESULT):		$(REAL_IMPL_INTF) $(OBJ_LINK) $(EXTRADEPS) $(RESULTDEPS)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) \
+				$(OCAML_FIND_PACKAGES) $(OCAML_FIND_LINKPKG) \
+				$(ALL_LDFLAGS) $(OBJS_LIBS) -o $@$(EXE) \
+				$(REAL_IMPL)
+
+nolink:			$(REAL_IMPL_INTF) $(OBJ_LINK)
+
+ifdef WIN32
+$(REAL_RESULT).dll:	$(REAL_IMPL_INTF) $(OBJ_LINK)
+			$(CAMLIDLDLL) $(CAMLIDLDLLFLAGS) $(OBJ_LINK) $(CLIBS) \
+				-o $@ $(REAL_IMPL)
+endif
+
+%$(TOPSUFFIX):		$(REAL_IMPL_INTF) $(OBJ_LINK) $(EXTRADEPS)
+			$(REAL_OCAMLFIND) $(OCAMLMKTOP) \
+				$(OCAML_FIND_PACKAGES) $(OCAML_FIND_LINKPKG) \
+				$(ALL_LDFLAGS) $(OBJS_LIBS) -o $@$(EXE) \
+				$(REAL_IMPL)
+
+.SUFFIXES:		.mli .ml .cmi .cmo .cmx .cma .cmxa .$(EXT_OBJ) \
+                        .mly .di .d .$(EXT_LIB) .idl %.oxridl .c .$(EXT_CXX) .h .so \
+                        .rep .zog .glade
+
+ifndef STATIC
+ifdef MINGW
+$(DLLSONAME):		$(OBJ_LINK)
+			$(CC) $(CFLAGS) $(CFLAGS_WIN32) $(OBJ_LINK) -shared -o $@ \
+			-Wl,--whole-archive $(wildcard $(foreach dir,$(LIBDIRS),$(CLIBS:%=$(dir)/lib%.a))) \
+			 $(OCAMLLIBPATH)/ocamlrun.a \
+			-Wl,--export-all-symbols \
+			-Wl,--no-whole-archive
+else
+ifdef MSVC
+$(DLLSONAME):		$(OBJ_LINK)
+			link /NOLOGO /DLL /OUT:$@ $(OBJ_LINK) \
+			 $(wildcard $(foreach dir,$(LIBDIRS),$(CLIBS:%=$(dir)/%.lib))) \
+			 $(OCAMLLIBPATH)/ocamlrun.lib
+
+else
+$(DLLSONAME):		$(OBJ_LINK)
+			$(OCAMLMKLIB) $(INCFLAGS) $(CLIBFLAGS) \
+				-o $(CLIB_BASE) $(OBJ_LINK) $(CLIBS:%=-l%) \
+				$(OCAMLMKLIB_FLAGS)
+endif
+endif
+endif
+
+ifndef LIB_PACK_NAME
+$(RESULT).cma:		$(REAL_IMPL_INTF) $(MAKEDLL) $(EXTRADEPS) $(RESULTDEPS)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) -a $(ALL_LDFLAGS) \
+				$(OBJS_LIBS) -o $@ $(OCAMLBLDFLAGS) $(REAL_IMPL)
+
+$(RESULT).cmxa $(RESULT).$(EXT_LIB):	$(REAL_IMPL_INTF) $(EXTRADEPS) $(RESULTDEPS)
+			$(REAL_OCAMLFIND) $(OCAMLOPT) -a $(ALL_LDFLAGS) $(OBJS_LIBS) \
+				$(OCAMLNLDFLAGS) -o $@ $(REAL_IMPL)
+else
+ifdef BYTE_OCAML
+$(LIB_PACK_NAME).cmi $(LIB_PACK_NAME).cmo: $(REAL_IMPL_INTF)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) -pack -o $(LIB_PACK_NAME).cmo $(REAL_IMPL)
+else
+$(LIB_PACK_NAME).cmi $(LIB_PACK_NAME).cmx: $(REAL_IMPL_INTF)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) -pack -o $(LIB_PACK_NAME).cmx $(REAL_IMPL)
+endif
+
+$(RESULT).cma:		$(LIB_PACK_NAME).cmi $(LIB_PACK_NAME).cmo $(MAKEDLL) $(EXTRADEPS) $(RESULTDEPS)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) -a $(ALL_LDFLAGS) \
+				$(OBJS_LIBS) -o $@ $(OCAMLBLDFLAGS) $(LIB_PACK_NAME).cmo
+
+$(RESULT).cmxa $(RESULT).$(EXT_LIB):	$(LIB_PACK_NAME).cmi $(LIB_PACK_NAME).cmx $(EXTRADEPS) $(RESULTDEPS)
+			$(REAL_OCAMLFIND) $(OCAMLOPT) -a $(ALL_LDFLAGS) $(OBJS_LIBS) \
+				$(OCAMLNLDFLAGS) -o $@ $(LIB_PACK_NAME).cmx
+endif
+
+$(RES_CLIB): 		$(OBJ_LINK)
+ifndef MSVC
+  ifneq ($(strip $(OBJ_LINK)),)
+		      $(AR) rcs $@ $(OBJ_LINK)
+  endif
+else
+  ifneq ($(strip $(OBJ_LINK)),)
+			lib -nologo -debugtype:cv -out:$(RES_CLIB) $(OBJ_LINK)
+  endif
+endif
+
+.mli.cmi: $(EXTRADEPS)
+			$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+			if [ -z "$$pp" ]; then \
+			  echo $(REAL_OCAMLFIND) $(INTF_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c $(THREAD_FLAG) $(ANNOT_FLAG) \
+				$(OCAMLFLAGS) $(INCFLAGS) $<; \
+			  $(REAL_OCAMLFIND) $(INTF_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c $(THREAD_FLAG) $(ANNOT_FLAG) \
+				$(OCAMLFLAGS) $(INCFLAGS) $<; \
+			else \
+			    echo $(REAL_OCAMLFIND) $(INTF_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c -pp \"$$pp $(PPFLAGS)\" $(THREAD_FLAG) $(ANNOT_FLAG) \
+				$(OCAMLFLAGS) $(INCFLAGS) $<; \
+			    $(REAL_OCAMLFIND) $(INTF_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c -pp "$$pp $(PPFLAGS)" $(THREAD_FLAG) $(ANNOT_FLAG) \
+				$(OCAMLFLAGS) $(INCFLAGS) $<; \
+			fi
+
+.ml.cmi .ml.$(EXT_OBJ) .ml.cmx .ml.cmo: $(EXTRADEPS)
+			$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+			if [ -z "$$pp" ]; then \
+			  echo $(REAL_OCAMLFIND) $(REAL_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c $(ALL_OCAMLCFLAGS) $<; \
+			  $(REAL_OCAMLFIND) $(REAL_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c $(ALL_OCAMLCFLAGS) $<; \
+			else \
+			  echo $(REAL_OCAMLFIND) $(REAL_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c -pp \"$$pp $(PPFLAGS)\" $(ALL_OCAMLCFLAGS) $<; \
+			  $(REAL_OCAMLFIND) $(REAL_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c -pp "$$pp $(PPFLAGS)" $(ALL_OCAMLCFLAGS) $<; \
+			fi
+
+ifdef PACK_LIB
+$(REAL_RESULT).cmo $(REAL_RESULT).cmx $(REAL_RESULT).o: $(REAL_IMPL_INTF) $(OBJ_LINK) $(EXTRADEPS)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) -pack $(ALL_LDFLAGS) \
+				$(OBJS_LIBS) -o $@ $(REAL_IMPL)
+endif
+
+.PRECIOUS:		%.ml
+%.ml:			%.mll
+			$(OCAMLLEX) $<
+
+.PRECIOUS:              %.ml %.mli
+%.ml %.mli:             %.mly
+			$(OCAMLYACC) $(YFLAGS) $<
+			$(QUIET)pp=`sed -n -e 's/.*(\*pp \([^*]*\) \*).*/\1/p;q' $<`; \
+			if [ ! -z "$$pp" ]; then \
+			  mv $*.ml $*.ml.temporary; \
+			  echo "(*pp $$pp $(PPFLAGS)*)" > $*.ml; \
+			  cat $*.ml.temporary >> $*.ml; \
+			  rm $*.ml.temporary; \
+			  mv $*.mli $*.mli.temporary; \
+			  echo "(*pp $$pp $(PPFLAGS)*)" > $*.mli; \
+			  cat $*.mli.temporary >> $*.mli; \
+			  rm $*.mli.temporary; \
+			fi
+
+
+.PRECIOUS:		%.ml
+%.ml:			%.rep
+			$(CAMELEON_REPORT) $(CAMELEON_REPORT_FLAGS) -gen $<
+
+.PRECIOUS:		%.ml
+%.ml:			%.zog
+			$(CAMELEON_ZOGGY)  $(CAMELEON_ZOGGY_FLAGS) -impl $< > $@
+
+.PRECIOUS:		%.ml
+%.ml:			%.glade
+			$(OCAML_GLADECC)  $(OCAML_GLADECC_FLAGS) $< > $@
+
+.PRECIOUS:		%.ml %.mli
+%.ml %.mli:		%.oxridl
+			$(OXRIDL) $<
+
+.PRECIOUS:		%.ml %.mli %_stubs.c %.h
+%.ml %.mli %_stubs.c %.h:		%.idl
+			$(CAMLIDL) $(MAYBE_IDL_HEADER) $(IDLFLAGS) \
+				$(CAMLIDLFLAGS) $<
+			$(QUIET)if [ $(NOIDLHEADER) ]; then touch $*.h; fi
+
+.c.$(EXT_OBJ):
+			$(OCAMLC) -c -cc "$(CC)" -ccopt "$(CFLAGS) \
+				$(CPPFLAGS) $(CPPFLAGS_WIN32) \
+				$(CFLAGS_WIN32) $(CINCFLAGS) $(CFLAG_O)$@ " $< 
+
+.$(EXT_CXX).$(EXT_OBJ):
+			$(CXX) -c $(CXXFLAGS) $(CINCFLAGS) $(CPPFLAGS) \
+				-I'$(OCAMLLIBPATH)' \
+				$< $(CFLAG_O)$@
+
+$(MLDEPDIR)/%.d:	%.ml
+			$(QUIET)if [ ! -d $(@D) ]; then mkdir -p $(@D); fi
+			$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+			if [ -z "$$pp" ]; then \
+			  echo $(REAL_OCAMLFIND) $(OCAMLDEP) $(OCAML_DEP_PACKAGES) \
+				$(DINCFLAGS) $< \> $@; \
+			  $(REAL_OCAMLFIND) $(OCAMLDEP) $(OCAML_DEP_PACKAGES) \
+				$(DINCFLAGS) $< > $@; \
+			else \
+			  echo $(REAL_OCAMLFIND) $(OCAMLDEP) $(OCAML_DEP_PACKAGES) \
+				-pp \"$$pp $(PPFLAGS)\" $(DINCFLAGS) $< \> $@; \
+			  $(REAL_OCAMLFIND) $(OCAMLDEP) $(OCAML_DEP_PACKAGES) \
+				-pp "$$pp $(PPFLAGS)" $(DINCFLAGS) $< > $@; \
+			fi
+
+$(BCDIDIR)/%.di $(NCDIDIR)/%.di:	%.mli
+			$(QUIET)if [ ! -d $(@D) ]; then mkdir -p $(@D); fi
+			$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+			if [ -z "$$pp" ]; then \
+			  echo $(REAL_OCAMLFIND) $(OCAMLDEP) $(DEPFLAGS) $(DINCFLAGS) $< \> $@; \
+			  $(REAL_OCAMLFIND) $(OCAMLDEP) $(DEPFLAGS) $(DINCFLAGS) $< > $@; \
+			else \
+			  echo $(REAL_OCAMLFIND) $(OCAMLDEP) $(DEPFLAGS) \
+			    -pp \"$$pp $(PPFLAGS)\" $(DINCFLAGS) $< \> $@; \
+			  $(REAL_OCAMLFIND) $(OCAMLDEP) $(DEPFLAGS) \
+			    -pp "$$pp $(PPFLAGS)" $(DINCFLAGS) $< > $@; \
+			fi
+
+doc/$(RESULT)/html: $(DOC_FILES)
+	rm -rf $@
+	mkdir -p $@
+	$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+	if [ -z "$$pp" ]; then \
+	  echo $(OCAMLDOC) -html -d $@ $(OCAMLDOCFLAGS) $(INCFLAGS) $(DOC_FILES); \
+	  $(OCAMLDOC) -html -d $@ $(OCAMLDOCFLAGS) $(INCFLAGS) $(DOC_FILES); \
+	else \
+	  echo $(OCAMLDOC) -pp \"$$pp $(PPFLAGS)\" -html -d $@ $(OCAMLDOCFLAGS) \
+	  	$(INCFLAGS) $(DOC_FILES); \
+	  $(OCAMLDOC) -pp "$$pp $(PPFLAGS)" -html -d $@ $(OCAMLDOCFLAGS) \
+	  	$(INCFLAGS) $(DOC_FILES); \
+	fi
+
+doc/$(RESULT)/latex: $(DOC_FILES)
+	rm -rf $@
+	mkdir -p $@
+	$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+	if [ -z "$$pp" ]; then \
+	  echo $(OCAMLDOC) -latex $(OCAMLDOCFLAGS) $(INCFLAGS) \
+	  	$(DOC_FILES) -o $@/doc.tex; \
+	  $(OCAMLDOC) -latex $(OCAMLDOCFLAGS) $(INCFLAGS) $(DOC_FILES) \
+	  	-o $@/doc.tex; \
+	else \
+	  echo $(OCAMLDOC) -pp \"$$pp $(PPFLAGS)\" -latex $(OCAMLDOCFLAGS) \
+	  	$(INCFLAGS) $(DOC_FILES) -o $@/doc.tex; \
+	  $(OCAMLDOC) -pp "$$pp $(PPFLAGS)" -latex $(OCAMLDOCFLAGS) \
+	  	$(INCFLAGS) $(DOC_FILES) -o $@/doc.tex; \
+	fi
+
+doc/$(RESULT)/latex/doc.ps: doc/$(RESULT)/latex
+	cd doc/$(RESULT)/latex && \
+	  $(LATEX) doc.tex && \
+	  $(LATEX) doc.tex && \
+	  $(DVIPS) $(DVIPSFLAGS) doc.dvi -o $(@F)
+
+doc/$(RESULT)/latex/doc.pdf: doc/$(RESULT)/latex/doc.ps
+	cd doc/$(RESULT)/latex && $(PS2PDF) $(<F)
+
+define make_subproj
+.PHONY:
+subproj_$(1):
+	$$(eval $$(call PROJ_$(1)))
+	$(QUIET)if [ "$(SUBTARGET)" != "all" ]; then \
+	  $(MAKE) -f $(OCAMLMAKEFILE) $(SUBTARGET); \
+	fi
+endef
+
+$(foreach subproj,$(SUBPROJS),$(eval $(call make_subproj,$(subproj))))
+
+.PHONY:
+subprojs: $(SUBPROJS:%=subproj_%)
+
+###########################################################################
+# (UN)INSTALL RULES FOR LIBRARIES
+
+.PHONY: libinstall
+libinstall:	all
+	$(QUIET)printf "\nInstalling library with ocamlfind\n"
+	$(OCAMLFIND) install $(OCAMLFIND_INSTFLAGS) $(RESULT) META $(LIBINSTALL_FILES)
+	$(QUIET)printf "\nInstallation successful.\n"
+
+.PHONY: libuninstall
+libuninstall:
+	$(QUIET)printf "\nUninstalling library with ocamlfind\n"
+	$(OCAMLFIND) remove $(OCAMLFIND_INSTFLAGS) $(RESULT)
+	$(QUIET)printf "\nUninstallation successful.\n"
+
+.PHONY: rawinstall
+rawinstall:	all
+	$(QUIET)printf "\nInstalling library to: $(OCAML_LIB_INSTALL)\n"
+	-install -d $(OCAML_LIB_INSTALL)
+	for i in $(LIBINSTALL_FILES); do \
+	  if [ -f $$i ]; then \
+	    install -c -m 0644 $$i $(OCAML_LIB_INSTALL); \
+	  fi; \
+	done
+	$(QUIET)printf "\nInstallation successful.\n"
+
+.PHONY: rawuninstall
+rawuninstall:
+	$(QUIET)printf "\nUninstalling library from: $(OCAML_LIB_INSTALL)\n"
+	cd $(OCAML_LIB_INSTALL) && rm $(notdir $(LIBINSTALL_FILES))
+	$(QUIET)printf "\nUninstallation successful.\n"
+
+###########################################################################
+# MAINTAINANCE RULES
+
+.PHONY:	clean
+clean::
+	rm -f $(TARGETS) $(TRASH)
+	rm -rf $(BCDIDIR) $(NCDIDIR) $(MLDEPDIR)
+
+.PHONY:	cleanup
+cleanup::
+	rm -f $(NONEXECS) $(TRASH)
+	rm -rf $(BCDIDIR) $(NCDIDIR) $(MLDEPDIR)
+
+.PHONY: clean-doc
+clean-doc::
+	rm -rf doc
+
+.PHONY: nobackup
+nobackup:
+	rm -f *.bak *~ *.dup
diff --git a/examples/http.ml b/examples/http.ml
new file mode 100644
index 0000000..85964a9
--- /dev/null
+++ b/examples/http.ml
@@ -0,0 +1,688 @@
+(*pp $PP *)
+
+let non_blocking_queues = ref 3
+let maybe_blocking_queues = ref 1
+let files_path = ref ""
+let port = ref 8080
+
+let usage = "usage: http [options] /path/to/files"
+
+let () =
+   let pnum = ref 0 in
+   let arg s = 
+     incr pnum;
+     if !pnum > 1 then
+       (Printf.eprintf "Error: too many arguments\n"; exit 1)
+     else
+       files_path := s
+  in
+  Arg.parse
+    [
+      "--non_blocking_queues", Arg.Int (fun i -> non_blocking_queues := i),
+      (Printf.sprintf
+        "Number of non-blocking queues. (default: %d)" !non_blocking_queues);
+      "--maybe_blocking_queues", Arg.Int (fun i -> maybe_blocking_queues := i),
+      (Printf.sprintf
+        "Number of maybe-blocking queues. (default: %d)" !maybe_blocking_queues) ;
+      "--port", Arg.Int (fun i -> port := i),
+      (Printf.sprintf
+        "Port used to bind the server. (default: %d)" !port) ;
+    ] arg usage ;
+  if !files_path = "" then
+    (
+      Printf.printf "%s\n" usage;
+      exit 1
+    )
+  
+
+type priority = 
+     Maybe_blocking
+   | Non_blocking
+
+let scheduler = Duppy.create ()
+
+type http_method = Post | Get
+
+type http_protocol = Http_11 | Http_10
+
+let string_of_protocol = 
+   function
+      | Http_11 -> "HTTP/1.1"
+      | Http_10 -> "HTTP/1.0"
+
+let protocol_of_string =
+   function
+      | "HTTP/1.1" -> Http_11
+      | "HTTP/1.0" -> Http_10
+      | _          -> assert false 
+
+let string_of_method = 
+   function
+      | Post -> "POST"
+      | Get  -> "GET" 
+
+let method_of_string =
+   function
+      | "POST" -> Post
+      | "GET"  -> Get
+      | _      -> assert false
+
+type data = None | String of string | File of Unix.file_descr
+
+type request = 
+  { request_protocol : http_protocol ;
+    request_method   : http_method ;
+    request_uri      : string ;
+    request_headers  : (string*string) list ;
+    request_data     : data }
+
+type reply = 
+  { reply_protocol : http_protocol ;
+    reply_status   : int*string ;
+    reply_headers  : (string*string) list ;
+    reply_data     : data }
+
+exception Assoc of string
+
+let assoc_uppercase x y =
+  try
+    List.iter
+      (fun (l,v) -> if String.uppercase l = x then
+                     raise (Assoc v)) y ;
+    raise Not_found
+  with
+    | Assoc s -> s
+
+let server = "dhttpd"
+
+let html_template = 
+  Printf.sprintf
+     "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\" \
+     \"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">\r\n\
+     <html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\">\r\n\
+     %s</html>"
+
+let server_error status protocol =
+  let (code,explanation) = status in
+  let data = 
+    String
+      (html_template
+        (Printf.sprintf 
+          "<head><title>%s</title></head>\r\n\
+           <body>%s !</body>" explanation explanation))
+  in
+  { reply_protocol = protocol ;
+    reply_status   = status ;
+    reply_headers  = [ "Content-Type","text/html; charset=UTF-8";
+                       "Server", server ] ;
+    reply_data     = data } 
+
+let error_404 = 
+  server_error (404,"File Not Found")
+
+let error_500 =
+   server_error (500,"Bad Request") Http_10
+
+let error_403 = 
+  server_error (403,"Forbidden")
+
+let http_302 protocol uri = 
+  { reply_protocol = protocol ;
+    reply_status   = (302,"Found") ;
+    reply_headers  = ["Location",uri];
+    reply_data     = String "" }
+
+type socket_status = Keep | Close
+
+let send_reply h reply =
+  let write s = 
+    duppy_write 
+      s
+    with
+      { priority = Non_blocking ;
+        handler  = h }
+  in
+  let (code,status) = reply.reply_status in
+  let http_header = 
+    Printf.sprintf 
+      "%s %d %s\r\n\
+       %s\r\n\
+       \r\n"
+       (string_of_protocol reply.reply_protocol) code status
+       (String.concat "\r\n" 
+         (List.map 
+           (fun (x,y) -> 
+             Printf.sprintf "%s: %s" x y) reply.reply_headers))
+  in
+  duppy_do
+    write http_header ;
+    begin
+     match reply.reply_data with
+       | String s -> 
+           write s
+       | File fd -> 
+           let stats = Unix.fstat fd in
+           let ba = 
+             Bigarray.Array1.map_file
+               fd Bigarray.char Bigarray.c_layout false
+               (stats.Unix.st_size)
+           in
+           let close () = 
+             try
+               Unix.close fd
+             with
+               | _ -> ()
+           in
+           let on_error e = 
+              close () ;
+              h.Duppy.Monad.Io.on_error e
+           in
+           let h = 
+             { h with
+                Duppy.Monad.Io.
+                 on_error = on_error }
+           in
+           duppy_do
+             duppy_write_bigarray 
+               ba
+             with
+               { priority = Non_blocking ;
+                 handler  = h } ;
+             duppy_return (close ())
+           done
+       | None -> duppy_return ()
+    end 
+    done
+
+let parse_headers headers =
+  let split_header l h =
+    try
+      let rex = Pcre.regexp "([^:\\r\\n]+):\\s*([^\\r\\n]+)" in
+      let sub = Pcre.exec ~rex h in
+      duppy_return
+        ((Pcre.get_substring sub 1,
+          Pcre.get_substring sub 2) :: l)
+    with
+      | Not_found -> duppy_raise error_500
+  in
+  duppy_fold_left split_header [] headers
+
+let index_uri path index protocol uri =
+  let uri =
+   try
+     let ret =
+        Pcre.extract ~rex:(Pcre.regexp "([^\\?]*)\\?")
+                     uri
+      in
+      ret.(1)
+   with
+     | Not_found -> uri
+  in
+  try
+   if Sys.is_directory 
+        (Printf.sprintf "%s%s" path uri) 
+   then
+     if uri.[String.length uri - 1] <> '/' then
+       duppy_raise (http_302 protocol (Printf.sprintf "%s/" uri)) 
+     else
+      begin
+       let index = Printf.sprintf "%s/%s" uri index in
+       if Sys.file_exists
+            (Printf.sprintf "%s/%s" path index) then
+         duppy_return index
+       else
+         duppy_return uri
+      end
+   else
+      duppy_return uri
+  with
+    | _ -> duppy_return uri
+
+let file_request path _ request = 
+  let uri = 
+    try
+      let ret =
+        Pcre.extract ~rex:(Pcre.regexp "([^\\?]*)\\?.*")
+                     request.request_uri
+      in
+      ret.(1)
+    with
+      | Not_found -> request.request_uri
+  in
+  duppy uri = 
+    index_uri path "index.html" 
+                   request.request_protocol uri 
+  in
+  let fname = 
+    Printf.sprintf "%s%s" path uri
+  in
+  if Sys.file_exists fname then
+    try
+      let fd = Unix.openfile fname [Unix.O_RDONLY] 0o640 in
+      let stats = Unix.fstat fd in
+      let headers =
+        [ "Server", server;
+          "Content-Length", string_of_int (stats.Unix.st_size) ]
+      in
+      let headers = 
+        if Pcre.pmatch ~rex:(Pcre.regexp "\\.html$") fname then
+          ("Content-Type","text/html") :: headers
+        else if Pcre.pmatch ~rex:(Pcre.regexp "\\.css$") fname then
+          ("Content-Type","text/css") :: headers
+        else
+          headers
+      in
+      duppy_raise
+       { reply_protocol = request.request_protocol ;
+         reply_status   = (200,"OK") ;
+         reply_headers  = headers ;
+         reply_data     = File fd }
+    with
+      | _ -> duppy_raise (error_403 request.request_protocol)
+  else
+    duppy_raise (error_404 request.request_protocol)
+
+let file_handler = 
+  (fun _ -> duppy_return true),file_request !files_path
+
+let cgi_handler process path h request =
+  let uri,args,suffix = 
+    try
+      let ret = 
+        Pcre.extract ~rex:(Pcre.regexp "([^\\?]*)\\?(.*)")
+                     request.request_uri 
+      in
+      begin
+       try
+        let ans = 
+          Pcre.extract ~rex:(Pcre.regexp "^([^/]*)/([^&=]*)$")
+                       ret.(2)
+        in
+        ret.(1),ans.(1),ans.(2)
+       with 
+         | Not_found -> ret.(1),ret.(2),""
+      end
+    with
+      | Not_found -> request.request_uri,"",""
+  in
+  duppy script = 
+    index_uri path "index.php" 
+              request.request_protocol
+              uri 
+  in
+  let script = 
+    Printf.sprintf "%s%s" path script
+  in
+  let env = 
+    Printf.sprintf
+        "export SERVER_SOFTWARE=Duppy-httpd/1.0; \
+         export SERVER_NAME=localhost; \
+         export GATEWAY_INTERFACE=CGI/1.1; \
+         export SERVER_PROTOCOL=%s; \
+         export SERVER_PORT=%d; \
+         export REQUEST_METHOD=%s; \
+         export REQUEST_URI=%s; \
+         export REDIRECT_STATUS=200; \
+         export SCRIPT_FILENAME=%s"
+       (string_of_protocol (request.request_protocol))
+       !port
+       (string_of_method (request.request_method))
+       (Filename.quote uri)
+       (Filename.quote script)
+  in
+  let env = 
+    Printf.sprintf "%s; export QUERY_STRING=%s"
+                   env
+                   (Filename.quote args)
+  in
+  let env = 
+    let tr_suffix = 
+      Printf.sprintf "%s%s" path suffix 
+    in
+    (* Trick ! *)
+    let tr_suffix = 
+      Printf.sprintf "%s/%s" (Filename.dirname tr_suffix)
+                             (Filename.basename tr_suffix)
+    in
+    Printf.sprintf "%s; export PATH_TRANSLATED=%s; \
+                        export PATH_INFO=%s"
+                   env
+                   (Filename.quote tr_suffix)
+                   (Filename.quote suffix)
+  in
+  let sanitize s =
+    Pcre.replace ~pat:"-" ~templ:"_" (String.uppercase s)
+  in
+  let headers = 
+    List.map (fun (x,y) -> (sanitize x,y)) request.request_headers
+  in
+  let append env key = 
+    if List.mem_assoc key headers then
+      Printf.sprintf "%s; export %s=%s"
+        env key (Filename.quote (List.assoc key headers))
+    else
+      env
+  in
+  let env = append env "CONTENT_TYPE" in
+  let env = append env "CONTENT_LENGTH" in
+  duppy env = 
+    if List.mem_assoc "AUTHORIZATION" headers then
+     begin
+      let ret = 
+        Pcre.extract ~rex:(Pcre.regexp "(^[^\\s]*\\s.*)$") 
+                     (List.assoc "AUTHORIZATION" headers)
+      in
+      if Array.length ret > 0 then
+        duppy_return (Printf.sprintf "%s; extract AUTH_TYPE=%s" env (ret.(1)))
+      else
+        duppy_raise error_500 
+     end
+    else
+      duppy_return env
+  in
+  let f env (x,y) = 
+    Printf.sprintf "%s; export HTTP_%s=%s"
+      env x (Filename.quote y)
+  in
+  let env = List.fold_left f env headers in
+  let data = 
+    match request.request_data with
+      | None -> ""
+      | String s -> s
+      | _ -> assert false (* not implemented *)
+  in
+  let process = 
+    Printf.sprintf "%s; %s 2>/dev/null"
+      env process
+  in
+  let in_c,out_c = 
+    Unix.open_process process
+  in
+  let out_s = 
+    Unix.descr_of_out_channel out_c
+  in
+  let h =
+    { h with
+       Duppy.Monad.Io.
+         socket = out_s ;
+         data   = ""
+    }
+  in
+  duppy () = 
+    duppy_write
+      data
+    with
+      { priority = Non_blocking ;
+        handler  = h }
+  in
+  let in_s = 
+    Unix.descr_of_in_channel in_c 
+  in
+  let h = 
+    { h with
+       Duppy.Monad.Io.
+         socket = in_s ;
+         data   = ""
+    }
+  in
+  duppy headers = 
+    duppy_read
+      Duppy.Io.Split "[\r]?\n[\r]?\n"
+    with
+      { priority = Non_blocking ;
+        handler  = h }
+  in
+  duppy data = 
+    duppy_try
+     duppy_read_all
+       in_s
+     with
+       { priority = Non_blocking ;
+         scheduler = h.Duppy.Monad.Io.scheduler }
+    with
+      | (s,_) -> duppy_return s
+  in
+  let data = 
+    Printf.sprintf "%s%s" h.Duppy.Monad.Io.data data 
+  in
+  ignore(Unix.close_process (in_c,out_c)) ;
+  duppy headers = 
+    let headers = Pcre.split ~pat:"\r\n" headers in
+    parse_headers headers 
+  in
+  duppy status,headers = 
+    if List.mem_assoc "Status" headers then
+     try
+      let ans = Pcre.extract ~rex:(Pcre.regexp "([\\d]+)\\s(.*)")
+                             (List.assoc "Status" headers) 
+      in
+      duppy_return
+       ((int_of_string ans.(1),
+         ans.(2)),
+        List.filter (fun (x,y) -> x <> "Status") headers)
+     with _ -> duppy_raise error_500
+    else duppy_return ((200,"OK"),headers)
+  in
+  let headers = 
+    ("Content-length",string_of_int (String.length data))::
+      headers
+  in
+  duppy_raise
+    { reply_protocol = request.request_protocol ;
+      reply_status   = status ;
+      reply_headers  = headers ;
+      reply_data     = String data }
+
+let php_handler = 
+  (fun request -> 
+     duppy uri = 
+       index_uri !files_path "index.php" 
+                 request.request_protocol
+                 request.request_uri 
+     in
+     duppy_return (Pcre.pmatch ~rex:(Pcre.regexp "\\.php$") uri)),
+  cgi_handler "php-cgi" !files_path
+
+let handlers = [php_handler;file_handler]
+
+let handle_request h request = 
+  let f (check,handler) =
+    duppy check = check request in
+    if check then
+      handler h request
+    else
+      duppy_return ()
+  in
+  duppy_try
+   duppy_do
+     duppy_iter f handlers ;
+     duppy_return (error_404 request.request_protocol)
+   done
+  with
+    | reply -> duppy_return reply
+
+let parse_request h r =
+  try
+    let headers = Pcre.split ~pat:"\r\n" r in
+    duppy request,headers =
+      match headers with
+        | e :: l -> 
+             duppy headers = 
+               parse_headers l
+             in 
+             duppy_return (e,headers)
+        | _ -> duppy_raise error_500
+    in
+    let rex = Pcre.regexp "([\\w]+)\\s([^\\s]+)\\s(HTTP/1.[01])" in
+    duppy http_method,uri,protocol =
+      try
+        let sub = Pcre.exec ~rex request in
+        let http_method,uri,protocol =
+          Pcre.get_substring sub 1,
+          Pcre.get_substring sub 2,
+          Pcre.get_substring sub 3
+        in
+        duppy_return
+          (method_of_string http_method,
+           uri,
+           protocol_of_string protocol)
+      with
+        | _ -> duppy_raise error_500
+    in
+    duppy data = 
+      match http_method with
+        | Get -> duppy_return None
+        | Post ->
+            duppy len =
+             try
+              let length = assoc_uppercase "CONTENT-LENGTH" headers in
+              duppy_return (int_of_string length)
+             with
+               | Not_found -> duppy_return 0
+               | _ -> duppy_raise error_500
+            in 
+            match len with
+              | 0 -> duppy_return None
+              | d ->
+                  duppy data = 
+                    duppy_read
+                      Duppy.Io.Length d
+                    with
+                      { priority = Non_blocking ;
+                        handler  = h }
+                  in
+                  duppy_return (String data)
+    in
+    duppy_return
+     { request_method   = http_method ;
+       request_protocol = protocol ;
+       request_uri      = uri ;
+       request_headers  = headers ;
+       request_data     = data } 
+  with
+    | _ -> duppy_raise error_500
+
+let handle_client socket =
+  (* Read and process lines *)
+  let on_error e =
+    error_500
+  in
+  let h =
+    { Duppy.Monad.Io.
+       scheduler = scheduler ;
+       socket    = socket ;
+       data      = "";
+       on_error  = on_error }
+  in
+  let rec exec () =
+    duppy (keep,reply) = 
+      duppy_try
+        duppy data =
+          duppy_read
+            Duppy.Io.Split "\r\n\r\n"
+          with
+            { priority = Non_blocking ;
+              handler  = h }
+        in
+        duppy request =
+          parse_request h data
+        in
+        duppy reply = 
+          handle_request h request
+        in
+        let close_header headers =
+          try
+            (assoc_uppercase "CONNECTION" headers) = "close"
+          with
+            | Not_found -> false
+        in
+        let keep = 
+          if
+            request.request_protocol = Http_10 ||
+            close_header request.request_headers ||
+            close_header reply.reply_headers
+          then
+            Close
+          else
+            Keep
+        in
+        duppy_return (keep,reply)
+      with
+        | reply -> duppy_return (Close,reply)
+    in
+    duppy_do
+        send_reply h reply ;
+        if keep = Keep then
+          exec ()
+        else
+          duppy_return ()
+    done
+  in
+  let finish _ = 
+    try
+      Unix.close socket
+    with
+      | _ -> ()
+  in 
+  duppy_run 
+    exec ()
+  with
+    { return = finish ;
+      raise = finish }
+
+let new_queue ~priority ~name () =
+   let priorities p = p = priority in
+   let queue () =
+      Duppy.queue scheduler ~log:(fun _ -> ()) ~priorities name
+   in
+   Thread.create queue ()
+
+let bind_addr_inet = Unix.inet_addr_of_string "0.0.0.0"
+let bind_addr = Unix.ADDR_INET(bind_addr_inet, !port)
+let max_conn = 100
+let sock = Unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 
+let () = 
+  (* See http://caml.inria.fr/mantis/print_bug_page.php?bug_id=4640
+   * for this: we want Unix EPIPE error and not SIGPIPE, which
+   * crashes the program.. *)
+  Sys.set_signal Sys.sigpipe Sys.Signal_ignore;
+  ignore (Unix.sigprocmask Unix.SIG_BLOCK [Sys.sigpipe]);
+  Unix.setsockopt sock Unix.SO_REUSEADDR true ;
+  let rec incoming _ =
+   begin
+    try
+      let (s,caller) = Unix.accept sock in
+      handle_client s
+    with e ->
+       Printf.printf "Failed to accept new client: %S\n"
+                (Printexc.to_string e)
+   end ;
+   [{ Duppy.Task.
+       priority = Non_blocking ;
+       events = [`Read sock] ;
+       handler = incoming }]
+  in
+  begin 
+   try 
+    Unix.bind sock bind_addr 
+   with
+     | Unix.Unix_error(Unix.EADDRINUSE, "bind", "") ->
+           failwith (Printf.sprintf "port %d already taken" !port)
+  end ;
+  Unix.listen sock max_conn ;
+  Duppy.Task.add scheduler
+   { Duppy.Task.
+       priority = Non_blocking ;
+       events   = [`Read sock] ;
+       handler  = incoming } ;
+  for i = 1 to !non_blocking_queues do
+    ignore(new_queue ~priority:Non_blocking
+             ~name:(Printf.sprintf "Non blocking queue #%d" i) 
+             ())
+  done ;
+  for i = 1 to !maybe_blocking_queues do
+    ignore(new_queue ~priority:Maybe_blocking
+             ~name:(Printf.sprintf "Maybe blocking queue #%d" i)
+             ()) 
+  done ;
+  Duppy.queue scheduler ~log:(fun _ -> ()) "root"
diff --git a/examples/telnet.ml b/examples/telnet.ml
new file mode 100644
index 0000000..f1e60a2
--- /dev/null
+++ b/examples/telnet.ml
@@ -0,0 +1,181 @@
+(*pp $PP *)
+
+type priority = Non_blocking | Maybe_blocking
+let io_priority = Non_blocking
+
+(* Create scheduler *)
+let scheduler = Duppy.create ()
+
+(* Create two queues,
+ * one for non blocking events
+ * and another for blocking 
+ * events *)
+let new_queue ~priority ~name () =
+   let log = 
+      Printf.printf "%s: %s\n%!" name
+   in
+   let priorities p = p = priority in
+   let queue () =
+      Duppy.queue scheduler ~log ~priorities name
+   in
+   Thread.create queue ()
+
+let th = 
+  ignore(new_queue ~priority:Non_blocking 
+            ~name:"Non blocking queue" ()) ;
+  ignore(new_queue ~priority:Maybe_blocking
+            ~name:"Maybe blocking queue #1" ()) ;
+  new_queue ~priority:Maybe_blocking
+            ~name:"Maybe blocking queue #2" ()
+
+let exec_command s () = 
+  let chan = Unix.open_process_in s in
+  let rec aux () =
+    match
+     try Some (input_line chan) with End_of_file -> None
+    with
+     | None -> []
+     | Some s -> s::(aux ())
+  in
+  let l = aux () in
+  ignore (Unix.close_process_in chan) ;
+  duppy_return (String.concat "\r\n" l)
+
+
+let commands = Hashtbl.create 10
+let () = Hashtbl.add commands "hello" (false,fun () -> duppy_return "world") ;
+         Hashtbl.add commands "foo" (false,fun () -> duppy_return "bar") ;
+         Hashtbl.add commands "uptime" (true,exec_command "uptime") ;
+         Hashtbl.add commands "date" (true,exec_command "date") ;
+         Hashtbl.add commands "whoami" (true,exec_command "whoami") ;
+         Hashtbl.add commands "sleep" (true,exec_command "sleep 15") ;
+	 Hashtbl.add commands "exit" (true,fun () -> duppy_raise ()) 
+(* Add commands here *)
+let help = Buffer.create 10
+let () = Buffer.add_string help "List of commands:" ;
+         Hashtbl.iter 
+           (fun x _ -> Buffer.add_string help (Printf.sprintf "\r\n%s" x))
+	   commands ;
+	 Hashtbl.add commands "help" (false,fun () -> duppy_return (Buffer.contents help))
+
+let handle_client socket = 
+  let on_error e =
+     match e with
+       | Duppy.Io.Io_error ->
+            Printf.printf "Client disconnected"
+       | Duppy.Io.Unix (c,p,m) ->
+            Printf.printf "%s" (Printexc.to_string 
+                                 (Unix.Unix_error (c,p,m)))
+       | Duppy.Io.Unknown e ->
+                Printf.printf "%s" (Printexc.to_string e)
+  in
+  let h =
+    { Duppy.Monad.Io.
+       scheduler = scheduler ;
+       socket    = socket ;
+       data      = "";
+       on_error  = on_error }
+  in
+  (* Read and process lines *)
+  let rec exec () =
+    duppy req = 
+      duppy_read
+       Duppy.Io.Split "[\r\n]+"
+      with
+        { priority = io_priority ;
+          handler  = h }
+    in
+    duppy ans =
+      try
+        let blocking,command = Hashtbl.find commands req in
+        if not blocking then
+          command ()
+        else
+         begin
+           duppy_exec 
+             command () 
+           with
+             { priority = Maybe_blocking ;
+               handler  = h }
+         end
+      with
+        | Not_found ->
+              duppy_return "ERROR: unknown command, type \"help\" to get a \
+                            list of commands."
+    in
+    duppy_do
+      duppy_write
+        "BEGIN\r\n";
+        ans;
+        "\r\nEND\r\n"
+      with
+        { priority = io_priority ;
+          handler  = h } ;
+      exec ()
+    done
+  in
+  let close () = 
+    try
+      Unix.close socket
+     with
+       | _ -> ()
+  in
+  let return () =
+    let on_error e =
+      on_error e ;
+      close ()
+    in
+    Duppy.Io.write ~priority:io_priority
+                   ~on_error
+                   ~exec:close scheduler
+                   ~string:"Bye!\r\n" socket
+  in
+  duppy_run
+    exec ()
+  with
+    { return = return ;
+      raise  = close }
+
+open Unix
+
+let port = 4123
+let bind_addr_inet = inet_addr_of_string "0.0.0.0"
+let bind_addr = ADDR_INET(bind_addr_inet, port)
+let max_conn = 10 
+let sock = socket PF_INET SOCK_STREAM 0 
+
+let () =
+  setsockopt sock SO_REUSEADDR true ;
+  let rec incoming _ =
+    begin
+      try
+        let (s,caller) = accept sock in
+        let ip =
+          let a = match caller with 
+            | ADDR_INET (a,_) -> a
+            | _ -> assert false
+          in
+            try
+              (gethostbyaddr a).h_name
+            with
+              | Not_found -> string_of_inet_addr a
+        in
+          Printf.printf "New client: %s\n" ip ;
+          handle_client s
+      with e ->
+        Printf.printf "Failed to accept new client: %S\n" (Printexc.to_string e)
+    end ;
+    [{ Duppy.Task.priority = io_priority ; 
+       Duppy.Task.events = [`Read sock] ; 
+       Duppy.Task.handler = incoming }]
+  in
+    begin try bind sock bind_addr with
+      | Unix.Unix_error(Unix.EADDRINUSE, "bind", "") ->
+          failwith (Printf.sprintf "port %d already taken" port)
+    end ;
+    listen sock max_conn ;
+    Duppy.Task.add scheduler 
+      { Duppy.Task.priority = io_priority ;
+        Duppy.Task.events   = [`Read sock] ;
+	Duppy.Task.handler  = incoming } ;
+    Thread.join th
diff --git a/install-sh b/install-sh
new file mode 100755
index 0000000..8175c64
--- /dev/null
+++ b/install-sh
@@ -0,0 +1,518 @@
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2018-03-11.20; # UTC
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# 'make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+
+tab='	'
+nl='
+'
+IFS=" $tab$nl"
+
+# Set DOITPROG to "echo" to test this script.
+
+doit=${DOITPROG-}
+doit_exec=${doit:-exec}
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
+
+src=
+dst=
+dir_arg=
+dst_arg=
+
+copy_on_change=false
+is_target_a_directory=possibly
+
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+   or: $0 [OPTION]... SRCFILES... DIRECTORY
+   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+   or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+     --help     display this help and exit.
+     --version  display version info and exit.
+
+  -c            (ignored)
+  -C            install only if different (preserve the last data modification time)
+  -d            create directories instead of installing files.
+  -g GROUP      $chgrpprog installed files to GROUP.
+  -m MODE       $chmodprog installed files to MODE.
+  -o USER       $chownprog installed files to USER.
+  -s            $stripprog installed files.
+  -t DIRECTORY  install into DIRECTORY.
+  -T            report an error if DSTFILE is a directory.
+
+Environment variables override the default commands:
+  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+  RMPROG STRIPPROG
+"
+
+while test $# -ne 0; do
+  case $1 in
+    -c) ;;
+
+    -C) copy_on_change=true;;
+
+    -d) dir_arg=true;;
+
+    -g) chgrpcmd="$chgrpprog $2"
+        shift;;
+
+    --help) echo "$usage"; exit $?;;
+
+    -m) mode=$2
+        case $mode in
+          *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
+            echo "$0: invalid mode: $mode" >&2
+            exit 1;;
+        esac
+        shift;;
+
+    -o) chowncmd="$chownprog $2"
+        shift;;
+
+    -s) stripcmd=$stripprog;;
+
+    -t)
+        is_target_a_directory=always
+        dst_arg=$2
+        # Protect names problematic for 'test' and other utilities.
+        case $dst_arg in
+          -* | [=\(\)!]) dst_arg=./$dst_arg;;
+        esac
+        shift;;
+
+    -T) is_target_a_directory=never;;
+
+    --version) echo "$0 $scriptversion"; exit $?;;
+
+    --) shift
+        break;;
+
+    -*) echo "$0: invalid option: $1" >&2
+        exit 1;;
+
+    *)  break;;
+  esac
+  shift
+done
+
+# We allow the use of options -d and -T together, by making -d
+# take the precedence; this is for compatibility with GNU install.
+
+if test -n "$dir_arg"; then
+  if test -n "$dst_arg"; then
+    echo "$0: target directory not allowed when installing a directory." >&2
+    exit 1
+  fi
+fi
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+  # When -d is used, all remaining arguments are directories to create.
+  # When -t is used, the destination is already specified.
+  # Otherwise, the last argument is the destination.  Remove it from $@.
+  for arg
+  do
+    if test -n "$dst_arg"; then
+      # $@ is not empty: it contains at least $arg.
+      set fnord "$@" "$dst_arg"
+      shift # fnord
+    fi
+    shift # arg
+    dst_arg=$arg
+    # Protect names problematic for 'test' and other utilities.
+    case $dst_arg in
+      -* | [=\(\)!]) dst_arg=./$dst_arg;;
+    esac
+  done
+fi
+
+if test $# -eq 0; then
+  if test -z "$dir_arg"; then
+    echo "$0: no input file specified." >&2
+    exit 1
+  fi
+  # It's OK to call 'install-sh -d' without argument.
+  # This can happen when creating conditional directories.
+  exit 0
+fi
+
+if test -z "$dir_arg"; then
+  if test $# -gt 1 || test "$is_target_a_directory" = always; then
+    if test ! -d "$dst_arg"; then
+      echo "$0: $dst_arg: Is not a directory." >&2
+      exit 1
+    fi
+  fi
+fi
+
+if test -z "$dir_arg"; then
+  do_exit='(exit $ret); exit $ret'
+  trap "ret=129; $do_exit" 1
+  trap "ret=130; $do_exit" 2
+  trap "ret=141; $do_exit" 13
+  trap "ret=143; $do_exit" 15
+
+  # Set umask so as not to create temps with too-generous modes.
+  # However, 'strip' requires both read and write access to temps.
+  case $mode in
+    # Optimize common cases.
+    *644) cp_umask=133;;
+    *755) cp_umask=22;;
+
+    *[0-7])
+      if test -z "$stripcmd"; then
+        u_plus_rw=
+      else
+        u_plus_rw='% 200'
+      fi
+      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+    *)
+      if test -z "$stripcmd"; then
+        u_plus_rw=
+      else
+        u_plus_rw=,u+rw
+      fi
+      cp_umask=$mode$u_plus_rw;;
+  esac
+fi
+
+for src
+do
+  # Protect names problematic for 'test' and other utilities.
+  case $src in
+    -* | [=\(\)!]) src=./$src;;
+  esac
+
+  if test -n "$dir_arg"; then
+    dst=$src
+    dstdir=$dst
+    test -d "$dstdir"
+    dstdir_status=$?
+  else
+
+    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+    # might cause directories to be created, which would be especially bad
+    # if $src (and thus $dsttmp) contains '*'.
+    if test ! -f "$src" && test ! -d "$src"; then
+      echo "$0: $src does not exist." >&2
+      exit 1
+    fi
+
+    if test -z "$dst_arg"; then
+      echo "$0: no destination specified." >&2
+      exit 1
+    fi
+    dst=$dst_arg
+
+    # If destination is a directory, append the input filename.
+    if test -d "$dst"; then
+      if test "$is_target_a_directory" = never; then
+        echo "$0: $dst_arg: Is a directory" >&2
+        exit 1
+      fi
+      dstdir=$dst
+      dstbase=`basename "$src"`
+      case $dst in
+	*/) dst=$dst$dstbase;;
+	*)  dst=$dst/$dstbase;;
+      esac
+      dstdir_status=0
+    else
+      dstdir=`dirname "$dst"`
+      test -d "$dstdir"
+      dstdir_status=$?
+    fi
+  fi
+
+  case $dstdir in
+    */) dstdirslash=$dstdir;;
+    *)  dstdirslash=$dstdir/;;
+  esac
+
+  obsolete_mkdir_used=false
+
+  if test $dstdir_status != 0; then
+    case $posix_mkdir in
+      '')
+        # Create intermediate dirs using mode 755 as modified by the umask.
+        # This is like FreeBSD 'install' as of 1997-10-28.
+        umask=`umask`
+        case $stripcmd.$umask in
+          # Optimize common cases.
+          *[2367][2367]) mkdir_umask=$umask;;
+          .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+          *[0-7])
+            mkdir_umask=`expr $umask + 22 \
+              - $umask % 100 % 40 + $umask % 20 \
+              - $umask % 10 % 4 + $umask % 2
+            `;;
+          *) mkdir_umask=$umask,go-w;;
+        esac
+
+        # With -d, create the new directory with the user-specified mode.
+        # Otherwise, rely on $mkdir_umask.
+        if test -n "$dir_arg"; then
+          mkdir_mode=-m$mode
+        else
+          mkdir_mode=
+        fi
+
+        posix_mkdir=false
+        case $umask in
+          *[123567][0-7][0-7])
+            # POSIX mkdir -p sets u+wx bits regardless of umask, which
+            # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+            ;;
+          *)
+            # Note that $RANDOM variable is not portable (e.g. dash);  Use it
+            # here however when possible just to lower collision chance.
+            tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+
+            trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+            # Because "mkdir -p" follows existing symlinks and we likely work
+            # directly in world-writeable /tmp, make sure that the '$tmpdir'
+            # directory is successfully created first before we actually test
+            # 'mkdir -p' feature.
+            if (umask $mkdir_umask &&
+                $mkdirprog $mkdir_mode "$tmpdir" &&
+                exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
+            then
+              if test -z "$dir_arg" || {
+                   # Check for POSIX incompatibilities with -m.
+                   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+                   # other-writable bit of parent directory when it shouldn't.
+                   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+                   test_tmpdir="$tmpdir/a"
+                   ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
+                   case $ls_ld_tmpdir in
+                     d????-?r-*) different_mode=700;;
+                     d????-?--*) different_mode=755;;
+                     *) false;;
+                   esac &&
+                   $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
+                     ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
+                     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+                   }
+                 }
+              then posix_mkdir=:
+              fi
+              rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
+            else
+              # Remove any dirs left behind by ancient mkdir implementations.
+              rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
+            fi
+            trap '' 0;;
+        esac;;
+    esac
+
+    if
+      $posix_mkdir && (
+        umask $mkdir_umask &&
+        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+      )
+    then :
+    else
+
+      # The umask is ridiculous, or mkdir does not conform to POSIX,
+      # or it failed possibly due to a race condition.  Create the
+      # directory the slow way, step by step, checking for races as we go.
+
+      case $dstdir in
+        /*) prefix='/';;
+        [-=\(\)!]*) prefix='./';;
+        *)  prefix='';;
+      esac
+
+      oIFS=$IFS
+      IFS=/
+      set -f
+      set fnord $dstdir
+      shift
+      set +f
+      IFS=$oIFS
+
+      prefixes=
+
+      for d
+      do
+        test X"$d" = X && continue
+
+        prefix=$prefix$d
+        if test -d "$prefix"; then
+          prefixes=
+        else
+          if $posix_mkdir; then
+            (umask=$mkdir_umask &&
+             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+            # Don't fail if two instances are running concurrently.
+            test -d "$prefix" || exit 1
+          else
+            case $prefix in
+              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+              *) qprefix=$prefix;;
+            esac
+            prefixes="$prefixes '$qprefix'"
+          fi
+        fi
+        prefix=$prefix/
+      done
+
+      if test -n "$prefixes"; then
+        # Don't fail if two instances are running concurrently.
+        (umask $mkdir_umask &&
+         eval "\$doit_exec \$mkdirprog $prefixes") ||
+          test -d "$dstdir" || exit 1
+        obsolete_mkdir_used=true
+      fi
+    fi
+  fi
+
+  if test -n "$dir_arg"; then
+    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+  else
+
+    # Make a couple of temp file names in the proper directory.
+    dsttmp=${dstdirslash}_inst.$$_
+    rmtmp=${dstdirslash}_rm.$$_
+
+    # Trap to clean up those temp files at exit.
+    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+    # Copy the file name to the temp name.
+    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+
+    # and set any options; do chmod last to preserve setuid bits.
+    #
+    # If any of these fail, we abort the whole thing.  If we want to
+    # ignore errors from any of these, just make sure not to ignore
+    # errors from the above "$doit $cpprog $src $dsttmp" command.
+    #
+    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+    # If -C, don't bother to copy if it wouldn't change the file.
+    if $copy_on_change &&
+       old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
+       set -f &&
+       set X $old && old=:$2:$4:$5:$6 &&
+       set X $new && new=:$2:$4:$5:$6 &&
+       set +f &&
+       test "$old" = "$new" &&
+       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+    then
+      rm -f "$dsttmp"
+    else
+      # Rename the file to the real destination.
+      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+      # The rename failed, perhaps because mv can't rename something else
+      # to itself, or perhaps because mv is so ancient that it does not
+      # support -f.
+      {
+        # Now remove or move aside any old file at destination location.
+        # We try this two ways since rm can't unlink itself on some
+        # systems and the destination file might be busy for other
+        # reasons.  In this case, the final cleanup might fail but the new
+        # file should still install successfully.
+        {
+          test ! -f "$dst" ||
+          $doit $rmcmd -f "$dst" 2>/dev/null ||
+          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+            { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+          } ||
+          { echo "$0: cannot unlink or rename $dst" >&2
+            (exit 1); exit 1
+          }
+        } &&
+
+        # Now rename the file to the real destination.
+        $doit $mvcmd "$dsttmp" "$dst"
+      }
+    fi || exit 1
+
+    trap '' 0
+  fi
+done
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/m4/base_checks.m4 b/m4/base_checks.m4
new file mode 100644
index 0000000..bfd98a2
--- /dev/null
+++ b/m4/base_checks.m4
@@ -0,0 +1,175 @@
+AC_DEFUN([AC_BASE_CHECKS],
+[AC_REQUIRE([AC_PROG_CC])
+
+dnl check for base compilers
+AC_CANONICAL_HOST()
+
+dnl Detect the target toolchain
+AC_MSG_CHECKING([target toolchain])
+case "${host_os}" in
+  linux*)
+    TARGET_TOOLCHAIN="linux"
+    ;;
+  mingw*)
+    TARGET_TOOLCHAIN="mingw"
+    ;;
+  cygwin*)
+    TARGET_TOOLCHAIN="cygwin"
+    ;;
+  darwin*)
+    TARGET_TOOLCHAIN="darwin"
+    ;;
+  *)
+    TARGET_TOOLCHAIN="other"
+    ;;
+esac
+AC_MSG_RESULT([$TARGET_TOOLCHAIN])
+AC_SUBST(TARGET_TOOLCHAIN)
+
+# AC_CANONICAL_HOST needs those files
+AUTOCONF_INSTALL_FILES="config.guess config.sub install-sh m4/*.m4"
+AC_SUBST(AUTOCONF_INSTALL_FILES)
+
+AC_PROG_CC()
+AC_PROG_INSTALL()
+AC_CHECK_TOOL([AR],[ar],no)
+AC_SUBST(AR)
+AC_CHECK_OCAML_COMPILERS()
+
+dnl add some flags
+AC_DETECT_PIC_FLAGS()
+
+CXXFLAGS="$CXXFLAGS $PIC_FLAGS"
+CPPFLAGS="$CPPFLAGS $PIC_FLAGS"
+
+# Add prefix to compilation variables
+# if passed
+if test "x$prefix" != "xNONE"; then
+  CFLAGS="$CFLAGS -I$prefix/include"
+  LDFLAGS="$LDFLAGS -L$prefix/lib"
+  CPPFLAGS="$CPPFLAGS -I$prefix/include"
+  CXXFLAGS="$CXXFLAGS -I$prefix/include"
+fi
+])
+
+dnl Check for basic stuff
+dnl The following was stolen from mesa..
+dnl A few convenience macros for Mesa, mostly to keep all the platform
+dnl specifics out of configure.ac.
+
+dnl AC_DETECT_PIC_FLAGS()
+dnl
+dnl Find out whether to build PIC code using the option --enable-pic and
+dnl the configure enable_static/enable_shared settings. If PIC is needed,
+dnl figure out the necessary flags for the platform and compiler.
+dnl
+dnl The platform checks have been shamelessly taken from libtool and
+dnl stripped down to just what's needed for Mesa. See _LT_COMPILER_PIC in
+dnl /usr/share/aclocal/libtool.m4 or
+dnl http://git.savannah.gnu.org/gitweb/?p=libtool.git;a=blob;f=libltdl/m4/libtool.m4;hb=HEAD
+dnl
+AC_DEFUN([AC_DETECT_PIC_FLAGS],
+[AC_ARG_VAR([PIC_FLAGS], [compiler flags for PIC code])
+AC_ARG_ENABLE([pic],
+    [AS_HELP_STRING([--disable-pic],
+        [compile PIC objects @<:@default=enabled for shared builds
+        on supported platforms@:>@])],
+    [enable_pic="$enableval"
+    test "x$enable_pic" = x && enable_pic=auto],
+    [enable_pic=auto])
+dnl disable PIC by default for static builds
+if test "$enable_pic" = auto && test "$enable_static" = yes; then
+    enable_pic=no
+fi
+dnl if PIC hasn't been explicitly disabled, try to figure out the flags
+if test "$enable_pic" != no; then
+    AC_MSG_CHECKING([for $CC option to produce PIC])
+    dnl allow the user's flags to override
+    if test "x$PIC_FLAGS" = "x"; then
+        dnl see if we're using GCC
+        if test "x$GCC" = "xyes"; then
+            case "$host_os" in
+            aix*|beos*|cygwin*|irix5*|irix6*|osf3*|osf4*|osf5*)
+                dnl PIC is the default for these OSes.
+                ;;
+            mingw*|os2*|pw32*)
+                dnl This hack is so that the source file can tell whether
+                dnl it is being built for inclusion in a dll (and should
+                dnl export symbols for example).
+                PIC_FLAGS="-DDLL_EXPORT"
+                ;;
+            darwin*|rhapsody*)
+                dnl PIC is the default on this platform
+                dnl Common symbols not allowed in MH_DYLIB files
+                PIC_FLAGS="-fno-common"
+                ;;
+            hpux*)
+                dnl PIC is the default for IA64 HP-UX and 64-bit HP-UX,
+                dnl but not for PA HP-UX.
+                case $host_cpu in
+                hppa*64*|ia64*)
+                    ;;
+                *)
+                    PIC_FLAGS="-fPIC"
+                    ;;
+                esac
+                ;;
+            *)
+                dnl Everyone else on GCC uses -fPIC
+                PIC_FLAGS="-fPIC"
+                ;;
+            esac
+        else dnl !GCC
+            case "$host_os" in
+            hpux9*|hpux10*|hpux11*)
+                dnl PIC is the default for IA64 HP-UX and 64-bit HP-UX,
+                dnl but not for PA HP-UX.
+                case "$host_cpu" in
+                hppa*64*|ia64*)
+                    dnl +Z the default
+                    ;;
+                *)
+                    PIC_FLAGS="+Z"
+                    ;;
+                esac
+                ;;
+            linux*|k*bsd*-gnu)
+                case `basename "$CC"` in
+                icc*|ecc*|ifort*)
+                    PIC_FLAGS="-KPIC"
+                    ;;
+                pgcc*|pgf77*|pgf90*|pgf95*)
+                    dnl Portland Group compilers (*not* the Pentium gcc
+                    dnl compiler, which looks to be a dead project)
+                    PIC_FLAGS="-fpic"
+                    ;;
+                ccc*)
+                    dnl All Alpha code is PIC.
+                    ;;
+                xl*)
+                    dnl IBM XL C 8.0/Fortran 10.1 on PPC
+                    PIC_FLAGS="-qpic"
+                    ;;
+                *)
+                    case `$CC -V 2>&1 | sed 5q` in
+                    *Sun\ C*|*Sun\ F*)
+                        dnl Sun C 5.9 or Sun Fortran
+                        PIC_FLAGS="-KPIC"
+                        ;;
+                    esac
+                esac
+                ;;
+            solaris*)
+                PIC_FLAGS="-KPIC"
+                ;;
+            sunos4*)
+                PIC_FLAGS="-PIC"
+                ;;
+            esac
+        fi
+    fi 
+    AC_MSG_RESULT([$PIC_FLAGS])
+fi
+AC_SUBST([PIC_FLAGS])
+])dnl PIC_FLAGS
+
diff --git a/m4/cpp_check_class.m4 b/m4/cpp_check_class.m4
new file mode 100644
index 0000000..fb3d299
--- /dev/null
+++ b/m4/cpp_check_class.m4
@@ -0,0 +1,24 @@
+dnl $1: linker lib name
+dnl $2: included file
+dnl $3: tested class
+dnl $4: emitted variable
+AC_DEFUN([AC_CPP_CHECK_CLASS],
+[AC_LANG_PUSH([C++])
+ SAVED_LDFLAGS=$LDFLAGS
+ LDFLAGS="$LDFLAGS -l$1"
+ AC_MSG_CHECKING([for class $3 in $1 library])
+ AC_LINK_IFELSE(
+   [AC_LANG_PROGRAM([#include <$2>],
+     [$3 *x = NULL])],
+   [TEST_LIBS="$TEST_LIBS -l$1"] [RESULT=1],
+   [RESULT=])
+ if test -z $RESULT; then
+   AC_MSG_RESULT([not found])
+ else
+   AC_DEFINE([$4], [1], [Defined if class $3 has been found in $1 library])
+   AC_MSG_RESULT([ok])
+ fi
+ $4=$RESULT
+ AC_SUBST([$4])
+ LDFLAGS=$SAVED_LDFLAGS
+ AC_LANG_POP([C++])])
diff --git a/m4/detect_binding.m4 b/m4/detect_binding.m4
new file mode 100644
index 0000000..eb02f90
--- /dev/null
+++ b/m4/detect_binding.m4
@@ -0,0 +1,186 @@
+dnl ===========================================================================
+dnl  Helper macro to detect an optional binding
+
+m4_defun([AC_OCAML_COMPARE_VERSION],
+  [if test -z "$2" ; then
+    VERSION_OK=yes
+  else
+    AS_VERSION_COMPARE([$1],[$2],
+        [VERSION_OK=],
+        [VERSION_OK=yes],
+        [VERSION_OK=yes])
+fi])
+
+m4_defun([AC_OCAML_CHECK_DEPS],
+  [dnl
+m4_define([deps],[m4_translit([$1],['a-z'],['A-Z'])])
+DEPS_CHECK=yes
+for i in deps(); do
+  eval "dep_check=\$W_$i"
+  if test -z "${dep_check}"; then
+    DEPS_CHECK=
+    break
+  fi
+done])
+
+m4_defun([AC_MSG_RESULT_NOT],
+  [ifelse([$1],[],[AC_MSG_RESULT($2)],[AC_MSG_ERROR($2)])])
+
+m4_defun([AC_COND_PLUGIN],
+  [ifelse([$1],[],
+[AC_ARG_ENABLE([$2-dynamic-plugin],
+   AC_HELP_STRING(
+      [--enable-$2-dynamic-plugin],
+      [Compile $2 as an optional dynamic plugin.]))])])
+
+AC_DEFUN([AC_CHECK_OCAML_BINDING],[dnl
+
+m4_define([BINDING],[m4_translit([$1],['a-z.-'],['A-Z__'])])
+m4_define([binding],[m4_translit([$1],['A-Z.-'],['a-z__'])])
+
+dnl $1 = PKG_NAME
+dnl $2 = PKG_VERSION
+dnl $3 = PKG_DEPS
+dnl $4 = PKG_MANDATORY
+dnl $5 = PKG_USED (for instance sdl.mixer au lieu of sdl. Should only be used for bindings not provided by us..)
+dnl $6 = DYNAMIC_PLUGIN
+dnl $7 = PKG_CMA (used for duppy.syntax and flac.ogg when locally compiled..)
+
+if test -n "$5"; then
+  BINDING_PKGS="$5"
+else
+  BINDING_PKGS="$1"
+fi
+
+AC_ARG_WITH([binding()-dir],
+   AC_HELP_STRING(
+      [--with-binding()-dir=path],
+      [look for ocaml-binding() library in "path" (autodetected by default)]))
+
+AC_COND_PLUGIN([$6],[$1])
+
+dnl Version stuff
+m4_define([VERSION_CHECK],[ifelse([$2],[],[],[ >= $2])])
+
+AC_MSG_CHECKING([for ocaml $1 module[]VERSION_CHECK()])
+
+OCAML_CHECK="${OCAMLFIND} query $1"
+
+dnl This (horrible) macro does the following:
+dnl Detect optional binding
+dnl If builtin and provided by ocamlfind,
+dnl fills liquidsoap_ocamlcflags with "-package deps" for
+dnl each dependency
+dnl If builtin and provided by us, fills
+dnl liquidsoap_ocamlcflags with "-I /path/to/ocaml-foo/src"
+dnl and liquidsoap_ocamllfflags with "foo.cmxa"
+dnl If plugin and provided by ocamlfind,
+dnl fills plugin_packages with "deps"
+dnl If plugin and provided by us, fills
+dnl plugin_ocamlcflags with "-I /path/to/ocaml-foo/src"
+dnl and plugin_ocamllflags with "foo.cmxa"
+dnl Ultimately, plugin_ocamlcflags and plugin_ocamllflags
+dnl are added to the global $PLUGINS_DATA variable and 
+dnl $PLUGINS is updated with the name of this plugin.
+dnl W_plugin is set to "yes" for builtin compilation
+dnl and "binding" for plugin compilation.
+
+if test "x$enable_[]binding()_dynamic_plugin" = "xyes" ; then
+  BINDING()_SHARED="yes"
+  PLUGINS="$PLUGINS binding()"
+fi
+
+AC_OCAML_CHECK_DEPS([$3])
+if test -z $DEPS_CHECK; then
+  AC_MSG_RESULT([[]binding() needs $3])
+else
+  if test -z "${with_[]binding()_dir}" ; then
+     if ! ${OCAML_CHECK} > /dev/null 2>&1 ; then
+         AC_MSG_RESULT_NOT([$4],[Not found.])
+     else
+         BINDING()_version="`${OCAMLFIND} query -format "%v" $1 2>/dev/null`"
+         AC_OCAML_COMPARE_VERSION([${[]BINDING()_version}],[$2])
+         if test -z "${VERSION_OK}"; then
+           AC_MSG_RESULT_NOT([$4],[requires version >= $2 found ${[]BINDING()_version}.])
+         else
+           if test -z "${[]BINDING()_SHARED}"; then
+             BINDING()_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINDING_PKGS 2>/dev/null`"
+             liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} ${[]BINDING()_PACKAGES}"
+             W_[]BINDING()=yes
+           else
+             []binding()_packages="`${OCAMLFIND} query -r -separator " " -format "%p" $BINDING_PKGS 2>/dev/null`"
+             W_[]BINDING()=[]binding()
+           fi
+           LIBS_VERSIONS="${LIBS_VERSIONS} $1=$[]BINDING()_version"
+           AC_MSG_RESULT(ok)
+         fi
+     fi
+  else
+    BINDING()_STOP_CHECK=
+    BINDING()_version=changequote({,})"[unknown version]"changequote([,])
+    BINDING()_requires=
+    if test -r ${with_[]binding()_dir}/META >/dev/null 2>&1; then
+      # Grab version
+      BINDING()_version=`cat "${with_[]binding()_dir}/META" | grep version | cut -d'=' -f 2 | tr -d ' ' | tr -d '"' | head -n 1`
+      AC_OCAML_COMPARE_VERSION([${[]BINDING()_version}],[$2])
+      if test -z "${VERSION_OK}"; then
+        AC_MSG_RESULT_NOT([$4],[requires version >= $2 found ${[]BINDING()_version}.])
+        BINDING()_STOP_CHECK=yes
+      fi
+      BINDING()_requires=`cat "${with_[]binding()_dir}/META" | grep 'requires' | cut -d '=' -f 2 | tr -d '"'`
+      BINDING()_path="${with_[]binding()_dir}"
+    else
+      BINDING()_path=`${OCAMLFIND} -query $1 2>/dev/null`
+      if ! test -z "$2"; then
+        AC_MSG_RESULT_NOT([$4],[cannot find version from META file.])
+        BINDING()_STOP_CHECK=yes
+      fi
+    fi
+    if test -z "${BINDING()_STOP_CHECK}"; then
+      BINDING()_PACKAGES="`${OCAMLFIND} query -separator " " -format "-package %p" $BINGING_PKGS 2>/dev/null`"
+      echo ${with_[]binding()_dir} | grep ^/ > /dev/null 2>&1 \
+          || with_[]binding()_dir=${PWD}/${with_[]binding()_dir}
+      if test -z "${[]BINDING()_SHARED}"; then
+        liquidsoap_ocamlcflags="${liquidsoap_ocamlcflags} -I ${with_[]binding()_dir} ${[]BINDING()_PACKAGES}"
+      else
+        []binding()_ocamlcflags="-I ${with_[]binding()_dir} ${[]BINDING()_PACKAGES}"
+      fi
+      # We need to recurse here because
+      # some package may not be registered using ocamlfind
+      if test -n "$7"; then
+        BINDING()_CMA=$7.${cma}
+      else
+        BINDING()_CMA=$1.${cma}
+      fi
+      for i in ${[]BINDING()_requires}; do
+        BINDING()_PACKAGES="${[]BINDING()_PACKAGES} `${OCAMLFIND} query -separator " " -format "-package %p" $i 2>/dev/null`"
+      done
+      if test -z "${[]BINDING()_SHARED}"; then
+        liquidsoap_ocamllflags="${liquidsoap_ocamllflags} ${[]BINDING()_PACKAGES} ${[]BINDING()_CMA}"
+        W_[]BINDING()=yes
+      else
+        []binding()_ocamllflags="${[]BINDING()_PACKAGES} ${[]BINDING()_CMA}"
+        W_[]BINDING()=[]binding()
+      fi
+      LIBS_VERSIONS="${LIBS_VERSIONS} $1=$[]BINDING()_version"
+      AC_MSG_RESULT(ok)
+    fi
+  fi
+fi
+
+AC_SUBST(W_[]BINDING())
+if test -z "${W_[]BINDING()}" ; then
+    w_[]BINDING()="no (requires $1)"
+else
+    if test -z "${[]BINDING()_SHARED}"; then
+      w_[]BINDING()=yes
+    else
+      PLUGINS_DATA="$PLUGINS_DATA
+[]binding()_ocamlcflags=${[]binding()_ocamlcflags}
+[]binding()_ocamllflags=${[]binding()_ocamllflags}
+[]binding()_packages=${[]binding()_packages}"
+      w_[]BINDING()=plugin
+    fi
+fi])
+
+
diff --git a/m4/ocaml.m4 b/m4/ocaml.m4
new file mode 100644
index 0000000..28d1350
--- /dev/null
+++ b/m4/ocaml.m4
@@ -0,0 +1,329 @@
+dnl autoconf macros for OCaml
+dnl
+dnl Copyright © 2009      Richard W.M. Jones
+dnl Copyright © 2009      Stefano Zacchiroli
+dnl Copyright © 2000-2005 Olivier Andrieu
+dnl Copyright © 2000-2005 Jean-Christophe Filliâtre
+dnl Copyright © 2000-2005 Georges Mariano
+dnl
+dnl For documentation, please read the ocaml.m4 man page.
+
+AC_DEFUN([AC_PROG_OCAML],
+[dnl
+  # checking for ocamlc
+  AC_CHECK_TOOL([OCAMLC],[ocamlc],[no])
+
+  if test "$OCAMLC" = "no"; then
+    AC_MSG_ERROR(Cannot find ocamlc.)
+  fi
+
+  AC_SUBST([OCAMLC])
+
+  OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'`
+  AC_MSG_RESULT([OCaml version is $OCAMLVERSION])
+  # Check if version is >= 3.12.0
+  AC_MSG_CHECKING([if ocaml compiler supports first-class modules])
+  AS_VERSION_COMPARE([$OCAMLVERSION],[3.12.0],[],[OCAML_HAS_FIRST_CLASS_MODULES="yes"],[OCAML_HAS_FIRST_CLASS_MODULES="yes"])
+  if test -n "${OCAML_HAS_FIRST_CLASS_MODULES}"; then
+    AC_MSG_RESULT([yes])
+  else
+    AC_MSG_RESULT([no])
+  fi
+  AC_SUBST(OCAML_HAS_FIRST_CLASS_MODULES)
+
+  # If OCAMLLIB is set, use it
+  if test "$OCAMLLIB" = ""; then
+     OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4`
+  else
+     AC_MSG_RESULT([OCAMLLIB previously set; preserving it.])
+  fi
+  AC_MSG_RESULT([OCaml library path is $OCAMLLIB])
+
+  AC_SUBST([OCAMLVERSION])
+  AC_SUBST([OCAMLLIB])
+
+  # checking for ocamlopt
+  AC_CHECK_TOOL_STRICT([OCAMLOPT],[ocamlopt],[no])
+  OCAMLBEST=byte
+  OCAML_DYNLINK=byte-dyn
+  if test "$OCAMLOPT" = "no"; then
+    AC_MSG_WARN([Cannot find ocamlopt; bytecode compilation only.])
+  else
+    TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+    if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+      AC_MSG_RESULT([versions differs from ocamlc; ocamlopt discarded.])
+        OCAMLOPT=no
+    else
+        OCAMLBEST="byte opt"
+        OCAML_DYNLINK="byte-dyn opt-dyn"
+    fi
+  fi
+
+  AC_SUBST([OCAMLBEST])
+  AC_SUBST([OCAML_DYNLINK])
+
+  # checking for ocamlc.opt
+  AC_CHECK_TOOL_STRICT([OCAMLCDOTOPT],[ocamlc.opt],[no])
+  if test "$OCAMLCDOTOPT" != "no"; then
+    TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+    if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+      AC_MSG_RESULT([versions differs from ocamlc; ocamlc.opt discarded.])
+    else
+      OCAMLC=$OCAMLCDOTOPT
+    fi
+  fi
+
+  # checking for ocamlopt.opt
+  if test "$OCAMLOPT" != "no" ; then
+     AC_CHECK_TOOL_STRICT([OCAMLOPTDOTOPT],[ocamlopt.opt],[no])
+     if test "$OCAMLOPTDOTOPT" != "no"; then
+       TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+       if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+         AC_MSG_RESULT([version differs from ocamlc; ocamlopt.opt discarded.])
+	else
+	 OCAMLOPT=$OCAMLOPTDOTOPT
+       fi
+    fi
+  fi
+
+  AC_SUBST([OCAMLOPT])
+
+  # checking for ocaml toplevel
+  AC_CHECK_TOOL_STRICT([OCAML],[ocaml],[no])
+
+  AC_SUBST([OCAML])
+
+  # checking for ocamldep
+  AC_CHECK_TOOL_STRICT([OCAMLDEP],[ocamldep],[no])
+  if test "$OCAMLDEP" = "no"; then
+    AC_MSG_ERROR(Cannot find ocamlmklib.)
+  else
+    AC_CHECK_TOOL_STRICT([OCAMLDEPOPT],[ocamldep.opt],[no])
+    if test "$OCAMLDEPOPT" != "no"; then
+      OCAMLDEP=$OCAMLDEPOPT
+    fi
+  fi
+
+  AC_SUBST([OCAMLDEP])
+
+  # checking for ocamlmktop
+  AC_CHECK_TOOL_STRICT([OCAMLMKTOP],[ocamlmktop],[no])
+
+  AC_SUBST([OCAMLMKTOP])
+
+  # checking for ocamlmklib
+  AC_CHECK_TOOL_STRICT([OCAMLMKLIB],[ocamlmklib],[no])
+  if test "$OCAMLMKLIB" = "no"; then
+    AC_MSG_ERROR(Cannot find ocamlmklib.)
+  fi
+
+  AC_SUBST([OCAMLMKLIB])
+
+  # checking for ocamldoc
+  AC_CHECK_TOOL([OCAMLDOC],[ocamldoc],[no])
+  if test "$OCAMLDOC" != "no"; then
+    AC_CHECK_TOOL([OCAMLDOCOPT],[ocamldoc.opt],[no])
+    if test "$OCAMLDOCOPT" != "no"; then
+      OCAMLDOC=$OCAMLDOCOPT
+    fi
+  fi
+
+  AC_SUBST([OCAMLDOC])
+
+  # checking for ocamlbuild
+  AC_CHECK_TOOL([OCAMLBUILD],[ocamlbuild],[no])
+
+  AC_SUBST([OCAMLBUILD])
+])
+
+
+AC_DEFUN([AC_PROG_OCAMLLEX],
+[dnl
+  # checking for ocamllex
+  AC_CHECK_TOOL([OCAMLLEX],[ocamllex],[no])
+  if test "$OCAMLLEX" != "no"; then
+    AC_CHECK_TOOL([OCAMLLEXDOTOPT],[ocamllex.opt],[no])
+    if test "$OCAMLLEXDOTOPT" != "no"; then
+	OCAMLLEX=$OCAMLLEXDOTOPT
+    fi
+  fi
+  AC_SUBST([OCAMLLEX])
+])
+
+AC_DEFUN([AC_PROG_OCAMLYACC],
+[dnl
+  AC_CHECK_TOOL([OCAMLYACC],[ocamlyacc],[no])
+  AC_SUBST([OCAMLYACC])
+])
+
+
+AC_DEFUN([AC_PROG_CAMLP4],
+[dnl
+  AC_REQUIRE([AC_PROG_OCAML])dnl
+
+
+  AC_ARG_ENABLE([camlp4],
+    AC_HELP_STRING([--disable-camlp4],
+                   [disable camlp4 auto-detection.]))
+
+  # checking for camlp4
+  if test "x$enable_camlp4" != "xno"; then
+    AC_CHECK_TOOL_STRICT([CAMLP4],[camlp4],[no])
+    if test "$CAMLP4" != "no"; then
+       TMPVERSION=`$CAMLP4 -v 2>&1| sed -n -e 's|.*version *\(.*\)$|\1|p' | tr -d '\r'`
+       if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+  	  AC_MSG_RESULT([versions differs from ocamlc])
+          CAMLP4=no
+       fi
+    fi
+    AC_SUBST([CAMLP4])
+
+    # checking for companion tools
+    AC_CHECK_TOOL_STRICT([CAMLP4BOOT],[camlp4boot],[no])
+    AC_CHECK_TOOL_STRICT([CAMLP4O],[camlp4o],[no])
+    AC_CHECK_TOOL_STRICT([CAMLP4OF],[camlp4of],[no])
+    AC_CHECK_TOOL_STRICT([CAMLP4OOF],[camlp4oof],[no])
+    AC_CHECK_TOOL_STRICT([CAMLP4ORF],[camlp4orf],[no])
+    AC_CHECK_TOOL_STRICT([CAMLP4PROF],[camlp4prof],[no])
+    AC_CHECK_TOOL_STRICT([CAMLP4R],[camlp4r],[no])
+    AC_CHECK_TOOL_STRICT([CAMLP4RF],[camlp4rf],[no])
+  else
+    CAMLP4=no
+    CAMLP4BOOT=no
+    CAMLP4O=no
+    CAMLP4OF=no
+    CAMLP4OOF=no
+    CAMLP4ORF=no
+    CAMLP4PROF=no
+    CAMLP4R=no
+    CAMLP4RF=no
+  fi
+
+  AC_SUBST([CAMLP4BOOT])
+  AC_SUBST([CAMLP4O])
+  AC_SUBST([CAMLP4OF])
+  AC_SUBST([CAMLP4OOF])
+  AC_SUBST([CAMLP4ORF])
+  AC_SUBST([CAMLP4PROF])
+  AC_SUBST([CAMLP4R])
+  AC_SUBST([CAMLP4RF])
+])
+
+AC_DEFUN([AC_PROG_CAMLIDL],
+[dnl
+  AC_CHECK_TOOL(CAMLIDL,camlidl,no)
+  AC_SUBST(CAMLIDL)
+])
+
+AC_DEFUN([AC_PROG_FINDLIB],
+[dnl
+  AC_REQUIRE([AC_PROG_OCAML])dnl
+
+  # checking for ocamlfind
+  AC_CHECK_TOOL([OCAMLFIND],[ocamlfind],[no])
+  AC_SUBST([OCAMLFIND])
+])
+
+AC_DEFUN([AC_CHECK_OCAML_STDLIB],
+[dnl
+  AC_REQUIRE([AC_PROG_FINDLIB])dnl
+
+  AC_MSG_CHECKING([for ocaml standard library path])
+  OCAML_STDLIB=`$OCAMLFIND printconf stdlib`
+  AC_SUBST(OCAML_STDLIB)
+  AC_MSG_RESULT([$OCAML_STDLIB])
+])
+
+dnl Thanks to Jim Meyering for working this next bit out for us.
+dnl XXX We should define AS_TR_SH if it's not defined already
+dnl (eg. for old autoconf).
+AC_DEFUN([AC_CHECK_OCAML_PKG],
+[dnl
+  AC_REQUIRE([AC_PROG_FINDLIB])dnl
+
+  AC_ARG_WITH([$1-dir],AC_HELP_STRING([--with-$1-dir=path],
+              [use "path" as the location of ocaml-$1 (autodetected by default)]))
+  AC_MSG_CHECKING([for OCaml library $1])
+
+  unset found
+  unset pkg
+  found=no
+  if test -z "$with_$1_dir"; then
+    for pkg in $1 $2 ; do
+      if $OCAMLFIND query $pkg >/dev/null 2>/dev/null; then
+        AC_MSG_RESULT([found])
+        AS_TR_SH([OCAML_PKG_$1])=$pkg
+        AS_TR_SH([OCAML_DIR_$1])=`$OCAMLFIND query $1`
+        found=yes
+        break
+      fi
+    done
+  else
+    echo $with_$1_dir | grep ^/ > /dev/null 2>&1 || with_$1_dir=$PWD/$with_$1_dir
+    AS_TR_SH([OCAML_PKG_$1])=no
+    OCAML_DIR_$1="$with_$1_dir"
+    found=yes
+  fi
+  if test "$found" = "no" ; then
+    AC_MSG_RESULT([not found])
+    AS_TR_SH([OCAML_HAS_$1])=no
+    AS_TR_SH([OCAML_PKG_$1])=no
+  else
+    AS_TR_SH([OCAML_HAS_$1])=yes
+  fi
+
+  AC_SUBST(AS_TR_SH([OCAML_PKG_$1]))
+])
+
+
+AC_DEFUN([AC_CHECK_OCAML_MODULE],
+[dnl
+  AC_MSG_CHECKING([for OCaml module $2])
+
+  cat > conftest.ml <<EOF
+open $3
+EOF
+  unset found
+  for $1 in $$1 $4 ; do
+    if $OCAMLC -c -I "$$1" conftest.ml >&5 2>&5 ; then
+      found=yes
+      break
+    fi
+  done
+
+  if test "$found" ; then
+    AC_MSG_RESULT([$$1])
+  else
+    AC_MSG_RESULT([not found])
+    $1=no
+  fi
+  AC_SUBST([$1])
+])
+
+
+dnl XXX Cross-compiling
+AC_DEFUN([AC_CHECK_OCAML_WORD_SIZE],
+[dnl
+  AC_REQUIRE([AC_PROG_OCAML])dnl
+  AC_MSG_CHECKING([for OCaml compiler word size])
+  cat > conftest.ml <<EOF
+  print_endline (string_of_int Sys.word_size)
+  EOF
+  OCAML_WORD_SIZE=`$OCAML conftest.ml`
+  AC_MSG_RESULT([$OCAML_WORD_SIZE])
+  AC_SUBST([OCAML_WORD_SIZE])
+])
+
+AC_DEFUN([AC_CHECK_OCAML_OS_TYPE],
+[dnl
+  AC_REQUIRE([AC_PROG_OCAML])dnl
+  AC_MSG_CHECKING([OCaml Sys.os_type])
+
+  cat > conftest.ml <<EOF
+  print_string(Sys.os_type);;
+EOF
+
+  OCAML_OS_TYPE=`$OCAML conftest.ml`
+  AC_MSG_RESULT([$OCAML_OS_TYPE])
+  AC_SUBST([OCAML_OS_TYPE])
+])
diff --git a/m4/ocaml_compilers.m4 b/m4/ocaml_compilers.m4
new file mode 100644
index 0000000..0da2421
--- /dev/null
+++ b/m4/ocaml_compilers.m4
@@ -0,0 +1,76 @@
+AC_DEFUN([AC_CHECK_OCAML_COMPILERS],[
+OCAMLFIND_LDCONF=""
+AC_ARG_ENABLE([ldconf], AC_HELP_STRING([--disable-ldconf],[don't modify the dynamic loader configuration file (default is enable)]),[ac_enable_ldconf=$enableval],[ac_enable_ldconf=$enableval],[ac_enable_ldconf=yes])
+if test "$ac_enable_ldconf" = no ; then
+	AC_MSG_RESULT([disabling modification of ld.conf])
+	OCAMLFIND_LDCONF=dummy
+fi
+AC_SUBST(OCAMLFIND_LDCONF)
+
+# Check for Ocaml compilers
+
+AC_PROG_OCAML()
+
+AC_PROG_CAMLIDL()
+
+AC_PROG_OCAMLLEX()
+
+AC_PROG_OCAMLYACC()
+
+AC_PROG_CAMLP4()
+
+AC_PROG_FINDLIB()
+
+AC_CHECK_OCAML_STDLIB()
+
+# Check if caml/threads.h is present 
+old_CFLAGS=$CFLAGS
+CFLAGS="$CFLAGS -I${OCAML_STDLIB}"
+AC_CHECK_HEADER([caml/threads.h],[CAML_THREADS=yes],[],[#include <caml/misc.h>])
+CFLAGS=${old_CFLAGS}
+
+AC_ARG_ENABLE([debugging],
+   AC_HELP_STRING(
+      [--disable-debugging],
+      [disable debugging information (backtrace printing in particular)]))
+
+if test "$enable_debugging" \!= "no" ; then
+  OCAMLFLAGS="$OCAMLFLAGS -g"
+fi
+
+AC_ARG_WITH([ocaml-warnings],
+   AC_HELP_STRING(
+      [--with-ocaml-warnings=WARNINGS],
+      [Enable specific list of ocaml compiler warnings.]))
+
+if test -n "${with_ocaml_warnings}" ; then
+  OCAMLFLAGS="$OCAMLFLAGS -w +${with_ocaml_warnings}"
+else
+  OCAMLFLAGS="$OCAMLFLAGS -w +A-4@5-7@8-9@11@12@20-35-44-45-50"
+fi
+
+AC_ARG_ENABLE([profiling],
+   AC_HELP_STRING(
+      [--enable-profiling],
+      [compile to generate profiling infomation]))
+if test "x$enable_profiling" = "xyes" ; then
+  OCAMLNCFLAGS="$OCAMLNCFLAGS -p"
+fi
+AC_SUBST(OCAMLNCFLAGS)
+
+AC_ARG_ENABLE([nativecode],
+   AC_HELP_STRING(
+      [--disable-nativecode],
+      [compile in bytecode]))
+
+AC_ARG_ENABLE([custom],
+   AC_HELP_STRING(
+      [--disable-custom],
+      [disable custom mode for bytecode compilation (use if you know what you are doing)]))
+
+CAMLLIBPATH=$OCAMLLIB
+AC_SUBST(CAMLLIBPATH)
+
+AC_SUBST(CAMLIDL)
+AC_SUBST(OCAMLFLAGS)
+])
diff --git a/m4/pkg_config.m4 b/m4/pkg_config.m4
new file mode 100644
index 0000000..f940dff
--- /dev/null
+++ b/m4/pkg_config.m4
@@ -0,0 +1,76 @@
+dnl Taken an modified from:
+dnl pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
+dnl 
+dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
+dnl
+dnl This program is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 2 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful, but
+dnl WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+dnl General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+dnl
+dnl As a special exception to the GNU General Public License, if you
+dnl distribute this file as part of a program that contains a
+dnl configuration script generated by Autoconf, you may include it under
+dnl the same distribution terms that you use for the rest of that program.
+
+dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
+dnl ----------------------------------
+AC_DEFUN([PKG_PROG_PKG_CONFIG],
+[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
+m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
+AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+  AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+fi
+if test -n "$PKG_CONFIG"; then
+  _pkg_min_version=m4_default([$1], [0.9.0])
+  AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
+  if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+    AC_MSG_RESULT([yes])
+  else
+    AC_MSG_ERROR([no])
+    PKG_CONFIG=""
+  fi
+    
+fi[]dnl
+])dnl PKG_PROG_PKG_CONFIG
+
+AC_ARG_VAR([PKG_CONFIG_OPTIONS], [Additional options passed when invoking pkg-config])
+
+dnl PKG_CONFIG_CHECK_MODULE([name],[min-version])
+dnl min-version is optional
+AC_DEFUN([PKG_CONFIG_CHECK_MODULE],
+[if test -n "$2"; then
+  PKGCONFIG_CHECK_VERSION=" >= $2"
+else
+  PKGCONFIG_CHECK_VERSION=""
+fi
+AC_MSG_CHECKING([whether pkg-config knows about $1${PKGCONFIG_CHECK_VERSION}])
+if ! $PKG_CONFIG $PKG_CONFIG_OPTIONS --exists $1; then
+  AC_MSG_ERROR([$1.pc not found.. Do you need to set PKG_CONFIG_PATH?])
+else
+  if test -n "$2"; then
+    if ! $PKG_CONFIG $PKG_CONFIG_OPTIONS --atleast-version=$2 $1; then
+      $1_VERSION="`$PKG_CONFIG $PKG_CONFIG_OPTIONS --modversion $1`"
+      AC_MSG_ERROR([requires version >= $2, found ${$1_VERSION}])
+    else
+      AC_MSG_RESULT([ok])
+    fi
+  else
+    AC_MSG_RESULT([ok])
+  fi
+fi
+CFLAGS="$CFLAGS `$PKG_CONFIG $PKG_CONFIG_OPTIONS --cflags $1`"
+CPPFLAGS="$CPPFLAGS `$PKG_CONFIG $PKG_CONFIG_OPTIONS --cflags $1`"
+LIBS="$LIBS `$PKG_CONFIG $PKG_CONFIG_OPTIONS --libs-only-l $1`"
+LDFLAGS="$LDFLAGS `$PKG_CONFIG $PKG_CONFIG_OPTIONS --libs-only-L $1`"
+])
diff --git a/m4/strict_check_tool.m4 b/m4/strict_check_tool.m4
new file mode 100644
index 0000000..6a52090
--- /dev/null
+++ b/m4/strict_check_tool.m4
@@ -0,0 +1,7 @@
+AC_DEFUN([AC_CHECK_TOOL_STRICT],
+[AC_CHECK_PROG([$1], [${ac_tool_prefix}$2], [${ac_tool_prefix}$2], [$3], [$4])])
+
+AC_DEFUN([AC_PATH_TOOL_STRICT],
+[AC_PATH_PROG([$1], [${ac_tool_prefix}$2], [$3])])
+
+
diff --git a/src/META.in b/src/META.in
new file mode 100644
index 0000000..9480812
--- /dev/null
+++ b/src/META.in
@@ -0,0 +1,10 @@
+name="duppy"
+version="@VERSION@"
+description="OCaml advanced scheduler"
+requires="@requires@"
+archive(byte)="duppy.cma"
+archive(native)="duppy.cmxa"
+
+@DUPPY_SSL_META@
+
+@DUPPY_SECURE_TRANSPORT_META@
diff --git a/src/Makefile.in b/src/Makefile.in
new file mode 100644
index 0000000..2fb5511
--- /dev/null
+++ b/src/Makefile.in
@@ -0,0 +1,68 @@
+# Copyright (C) 2005-2006 Savonet team
+# lastfm bindings for OCaml.
+#
+# by Samuel Mimram and Romain Beauxis
+
+# $Id: Makefile.in 2383 2006-04-09 16:21:04Z smimram $
+
+OCAMLMAKEFILE = OCamlMakefile
+
+OCAMLFIND = @OCAMLFIND@
+OCAMLFIND_LDCONF = @OCAMLFIND_LDCONF@
+OCAMLC = @OCAMLC@ -thread
+OCAMLOPT = @OCAMLOPT@ -thread
+OCAMLBEST = @OCAMLBEST@
+OCAMLMKTOP = @OCAMLMKTOP@
+OCAMLMKLIB = @OCAMLMKLIB@
+OCAMLCP = @OCAMLCP@
+OCAMLDEP = @OCAMLDEP@
+OCAMLLEX = @OCAMLLEX@
+OCAMLYACC = @OCAMLYACC@
+OCAMLDOC = @OCAMLDOC@
+LATEX = @LATEX@
+DVIPS = @DVIPS@
+PS2PDF = @PS2PDF@
+OCAMLLIBPATH = @CAMLLIBPATH@
+
+SOURCES = duppy_stubs.c duppy.ml duppy.mli
+RESULT = duppy
+OCAMLDOCFLAGS = -stars
+DOC_FILES = $(filter %.mli, $(SOURCES))
+LIBINSTALL_FILES = $(DOC_FILES) $(wildcard *.cmi *.cma *.cmxa *.cmx *.a *.so)
+ACLIBS = @LIBS@
+LDFLAGS = @LDFLAGS@
+CLIBS = $(ACLIBS:-l%=%)
+CC = @CC@
+AR = @AR@
+CFLAGS = @CFLAGS@ -Wall -DCAML_NAME_SPACE
+CPPFLAGS = @CPPFLAGS@
+INCDIRS = @INC@
+NO_CUSTOM = yes
+OCAMLFLAGS = @OCAMLFLAGS@
+ANNOTATE = true
+
+all: $(OCAMLBEST) @DUPPY_SSL@ @DUPPY_SECURE_TRANSPORT@
+
+duppy_ssl:
+	$(MAKE) SOURCES="duppy_ssl.mli duppy_ssl.ml" RESULT="duppy_ssl" $(OCAMLBEST)
+
+duppy_secure_transport:
+	$(MAKE) SOURCES="duppy_secure_transport.mli duppy_secure_transport.ml" RESULT="duppy_secure_transport" $(OCAMLBEST)
+
+byte: byte-code-library
+
+opt: native-code-library
+
+native-code-library: byte-code-library
+
+htdoc:
+	mkdir -p doc/html
+	ocamldoc -html -d doc/html
+
+install: libinstall
+
+uninstall: libuninstall
+
+update: uninstall install
+
+-include $(OCAMLMAKEFILE)
diff --git a/src/OCamlMakefile b/src/OCamlMakefile
new file mode 100644
index 0000000..18fcc34
--- /dev/null
+++ b/src/OCamlMakefile
@@ -0,0 +1,1138 @@
+###########################################################################
+#                              OCamlMakefile
+#                  Copyright (C) 1999-2004  Markus Mottl
+#
+#                             For updates see:
+#                http://www.oefai.at/~markus/ocaml_sources
+#
+#        $Id: OCamlMakefile 4512 2007-09-05 14:17:36Z sgimenez $
+#
+###########################################################################
+
+# Modified by damien for .glade.ml compilation
+
+# Set these variables to the names of the sources to be processed and
+# the result variable. Order matters during linkage!
+
+ifndef SOURCES
+  SOURCES := foo.ml
+endif
+export SOURCES
+
+ifndef RES_CLIB_SUF
+  RES_CLIB_SUF := _stubs
+endif
+export RES_CLIB_SUF
+
+ifndef RESULT
+  RESULT := foo
+endif
+export RESULT
+
+export LIB_PACK_NAME
+
+ifndef DOC_FILES
+  DOC_FILES := $(filter %.mli, $(SOURCES))
+endif
+export DOC_FILES
+
+export BCSUFFIX
+export NCSUFFIX
+
+ifndef TOPSUFFIX
+  TOPSUFFIX := .top
+endif
+export TOPSUFFIX
+
+# Eventually set include- and library-paths, libraries to link,
+# additional compilation-, link- and ocamlyacc-flags
+# Path- and library information needs not be written with "-I" and such...
+# Define THREADS if you need it, otherwise leave it unset (same for
+# USE_CAMLP4)!
+
+export THREADS
+export VMTHREADS
+export ANNOTATE
+export USE_CAMLP4
+
+export INCDIRS
+export LIBDIRS
+export EXTLIBDIRS
+export RESULTDEPS
+export OCAML_DEFAULT_DIRS
+
+export LIBS
+export CLIBS
+
+export OCAMLFLAGS
+export OCAMLNCFLAGS
+export OCAMLBCFLAGS
+
+export OCAMLLDFLAGS
+export OCAMLNLDFLAGS
+export OCAMLBLDFLAGS
+
+ifndef OCAMLCPFLAGS
+  OCAMLCPFLAGS := a
+endif
+
+export OCAMLCPFLAGS
+
+export PPFLAGS
+
+export YFLAGS
+export IDLFLAGS
+
+export OCAMLDOCFLAGS
+
+export OCAMLFIND_INSTFLAGS
+
+export DVIPSFLAGS
+
+export STATIC
+
+# Add a list of optional trash files that should be deleted by "make clean"
+export TRASH
+
+####################  variables depending on your OCaml-installation
+
+ifdef MINGW
+  export MINGW
+  WIN32   := 1
+  CFLAGS_WIN32 := -mno-cygwin
+endif
+ifdef MSVC
+  export MSVC
+  WIN32   := 1
+  ifndef STATIC
+    CPPFLAGS_WIN32 := -DCAML_DLL
+  endif
+  CFLAGS_WIN32 += -nologo
+  EXT_OBJ := obj
+  EXT_LIB := lib
+  ifeq ($(CC),gcc)
+    # work around GNU Make default value
+    ifdef THREADS
+      CC := cl -MT
+    else
+      CC := cl
+    endif
+  endif
+  ifeq ($(CXX),g++)
+    # work around GNU Make default value
+    CXX := $(CC)
+  endif
+  CFLAG_O := -Fo
+endif
+ifdef WIN32
+  EXT_CXX := cpp
+  EXE     := .exe
+endif
+
+ifndef EXT_OBJ
+  EXT_OBJ := o
+endif
+ifndef EXT_LIB
+  EXT_LIB := a
+endif
+ifndef EXT_CXX
+  EXT_CXX := cc
+endif
+ifndef EXE
+  EXE := # empty
+endif
+ifndef CFLAG_O
+  CFLAG_O := -o # do not delete this comment (preserves trailing whitespace)!
+endif
+
+export CC
+export CXX
+export CFLAGS
+export CXXFLAGS
+export LDFLAGS
+export CPPFLAGS
+export AR
+
+ifndef RPATH_FLAG
+  RPATH_FLAG := -R
+endif
+export RPATH_FLAG
+
+ifndef MSVC
+ifndef PIC_CFLAGS
+  PIC_CFLAGS := -fPIC
+endif
+ifndef PIC_CPPFLAGS
+  PIC_CPPFLAGS := -DPIC
+endif
+endif
+
+export PIC_CFLAGS
+export PIC_CPPFLAGS
+
+BCRESULT  := $(addsuffix $(BCSUFFIX), $(RESULT))
+NCRESULT  := $(addsuffix $(NCSUFFIX), $(RESULT))
+TOPRESULT := $(addsuffix $(TOPSUFFIX), $(RESULT))
+
+ifndef OCAMLFIND
+  OCAMLFIND := ocamlfind
+endif
+export OCAMLFIND
+
+ifndef OCAMLC
+  OCAMLC := ocamlc
+endif
+export OCAMLC
+
+ifndef OCAMLOPT
+  OCAMLOPT := ocamlopt
+endif
+export OCAMLOPT
+
+ifndef OCAMLMKTOP
+  OCAMLMKTOP := ocamlmktop
+endif
+export OCAMLMKTOP
+
+ifndef OCAMLCP
+  OCAMLCP := ocamlcp
+endif
+export OCAMLCP
+
+ifndef OCAMLDEP
+  OCAMLDEP := ocamldep
+endif
+export OCAMLDEP
+
+ifndef OCAMLLEX
+  OCAMLLEX := ocamllex
+endif
+export OCAMLLEX
+
+ifndef OCAMLYACC
+  OCAMLYACC := ocamlyacc
+endif
+export OCAMLYACC
+
+ifndef OCAMLMKLIB
+  OCAMLMKLIB := ocamlmklib
+endif
+export OCAMLMKLIB
+
+ifndef OCAML_GLADECC
+  OCAML_GLADECC := lablgladecc2
+endif
+export OCAML_GLADECC
+
+ifndef OCAML_GLADECC_FLAGS
+  OCAML_GLADECC_FLAGS :=
+endif
+export OCAML_GLADECC_FLAGS
+
+ifndef CAMELEON_REPORT
+  CAMELEON_REPORT := report
+endif
+export CAMELEON_REPORT
+
+ifndef CAMELEON_REPORT_FLAGS
+  CAMELEON_REPORT_FLAGS :=
+endif
+export CAMELEON_REPORT_FLAGS
+
+ifndef CAMELEON_ZOGGY
+  CAMELEON_ZOGGY := camlp4o pa_zog.cma pr_o.cmo
+endif
+export CAMELEON_ZOGGY
+
+ifndef CAMELEON_ZOGGY_FLAGS
+  CAMELEON_ZOGGY_FLAGS :=
+endif
+export CAMELEON_ZOGGY_FLAGS
+
+ifndef OXRIDL
+  OXRIDL := oxridl
+endif
+export OXRIDL
+
+ifndef CAMLIDL
+  CAMLIDL := camlidl
+endif
+export CAMLIDL
+
+ifndef CAMLIDLDLL
+  CAMLIDLDLL := camlidldll
+endif
+export CAMLIDLDLL
+
+ifndef NOIDLHEADER
+  MAYBE_IDL_HEADER := -header
+endif
+export NOIDLHEADER
+
+export NO_CUSTOM
+
+ifndef CAMLP4
+  CAMLP4 := camlp4
+endif
+export CAMLP4
+
+ifndef REAL_OCAMLFIND
+  ifdef PACKS
+    ifndef CREATE_LIB
+      ifdef THREADS
+	PACKS += threads
+      endif
+    endif
+    empty :=
+    space := $(empty) $(empty)
+    comma := ,
+    ifdef PREDS
+      PRE_OCAML_FIND_PREDICATES := $(subst $(space),$(comma),$(PREDS))
+      PRE_OCAML_FIND_PACKAGES := $(subst $(space),$(comma),$(PACKS))
+      OCAML_FIND_PREDICATES := -predicates $(PRE_OCAML_FIND_PREDICATES)
+  #    OCAML_DEP_PREDICATES := -syntax $(PRE_OCAML_FIND_PREDICATES)
+      OCAML_FIND_PACKAGES := $(OCAML_FIND_PREDICATES) -package $(PRE_OCAML_FIND_PACKAGES)
+      OCAML_DEP_PACKAGES := $(OCAML_DEP_PREDICATES) -package $(PRE_OCAML_FIND_PACKAGES)
+    else
+      OCAML_FIND_PACKAGES := -package $(subst $(space),$(comma),$(PACKS))
+      OCAML_DEP_PACKAGES :=
+    endif
+    OCAML_FIND_LINKPKG := -linkpkg
+    REAL_OCAMLFIND := $(OCAMLFIND)
+  endif
+endif
+
+export OCAML_FIND_PACKAGES
+export OCAML_DEP_PACKAGES
+export OCAML_FIND_LINKPKG
+export REAL_OCAMLFIND
+
+ifndef OCAMLDOC
+  OCAMLDOC := ocamldoc
+endif
+export OCAMLDOC
+
+ifndef LATEX
+  LATEX := latex
+endif
+export LATEX
+
+ifndef DVIPS
+  DVIPS := dvips
+endif
+export DVIPS
+
+ifndef PS2PDF
+  PS2PDF := ps2pdf
+endif
+export PS2PDF
+
+ifndef OCAMLMAKEFILE
+  OCAMLMAKEFILE := OCamlMakefile
+endif
+export OCAMLMAKEFILE
+
+ifndef OCAMLLIBPATH
+  OCAMLLIBPATH := \
+    $(shell $(OCAMLC) 2>/dev/null -where || echo /usr/lib/ocaml)
+endif
+export OCAMLLIBPATH
+
+ifndef OCAML_LIB_INSTALL
+  OCAML_LIB_INSTALL := $(OCAMLLIBPATH)/contrib
+endif
+export OCAML_LIB_INSTALL
+
+###########################################################################
+
+####################  change following sections only if
+####################    you know what you are doing!
+
+# delete target files when a build command fails
+.PHONY: .DELETE_ON_ERROR
+.DELETE_ON_ERROR:
+
+# for pedants using "--warn-undefined-variables"
+export MAYBE_IDL
+export REAL_RESULT
+export CAMLIDLFLAGS
+export THREAD_FLAG
+export RES_CLIB
+export MAKEDLL
+export ANNOT_FLAG
+export C_OXRIDL
+export SUBPROJS
+export CFLAGS_WIN32
+export CPPFLAGS_WIN32
+
+INCFLAGS :=
+
+SHELL := /bin/sh
+
+MLDEPDIR := ._d
+BCDIDIR  := ._bcdi
+NCDIDIR  := ._ncdi
+
+FILTER_EXTNS := %.mli %.ml %.mll %.mly %.idl %.oxridl %.c %.$(EXT_CXX) %.rep %.zog %.glade
+
+FILTERED     := $(filter $(FILTER_EXTNS), $(SOURCES))
+SOURCE_DIRS  := $(filter-out ./, $(sort $(dir $(FILTERED))))
+
+FILTERED_REP := $(filter %.rep, $(FILTERED))
+DEP_REP      := $(FILTERED_REP:%.rep=$(MLDEPDIR)/%.d)
+AUTO_REP     := $(FILTERED_REP:.rep=.ml)
+
+FILTERED_ZOG := $(filter %.zog, $(FILTERED))
+DEP_ZOG      := $(FILTERED_ZOG:%.zog=$(MLDEPDIR)/%.d)
+AUTO_ZOG     := $(FILTERED_ZOG:.zog=.ml)
+
+FILTERED_GLADE := $(filter %.glade, $(FILTERED))
+DEP_GLADE      := $(FILTERED_GLADE:%.glade=$(MLDEPDIR)/%.d)
+AUTO_GLADE     := $(FILTERED_GLADE:.glade=.ml)
+
+FILTERED_ML  := $(filter %.ml, $(FILTERED))
+DEP_ML       := $(FILTERED_ML:%.ml=$(MLDEPDIR)/%.d)
+
+FILTERED_MLI := $(filter %.mli, $(FILTERED))
+DEP_MLI      := $(FILTERED_MLI:.mli=.di)
+
+FILTERED_MLL := $(filter %.mll, $(FILTERED))
+DEP_MLL      := $(FILTERED_MLL:%.mll=$(MLDEPDIR)/%.d)
+AUTO_MLL     := $(FILTERED_MLL:.mll=.ml)
+
+FILTERED_MLY := $(filter %.mly, $(FILTERED))
+DEP_MLY      := $(FILTERED_MLY:%.mly=$(MLDEPDIR)/%.d) $(FILTERED_MLY:.mly=.di)
+AUTO_MLY     := $(FILTERED_MLY:.mly=.mli) $(FILTERED_MLY:.mly=.ml)
+
+FILTERED_IDL := $(filter %.idl, $(FILTERED))
+DEP_IDL      := $(FILTERED_IDL:%.idl=$(MLDEPDIR)/%.d) $(FILTERED_IDL:.idl=.di)
+C_IDL        := $(FILTERED_IDL:%.idl=%_stubs.c)
+ifndef NOIDLHEADER
+ C_IDL += $(FILTERED_IDL:.idl=.h)
+endif
+OBJ_C_IDL    := $(FILTERED_IDL:%.idl=%_stubs.$(EXT_OBJ))
+AUTO_IDL     := $(FILTERED_IDL:.idl=.mli) $(FILTERED_IDL:.idl=.ml) $(C_IDL)
+
+FILTERED_OXRIDL := $(filter %.oxridl, $(FILTERED))
+DEP_OXRIDL      := $(FILTERED_OXRIDL:%.oxridl=$(MLDEPDIR)/%.d) $(FILTERED_OXRIDL:.oxridl=.di)
+AUTO_OXRIDL     := $(FILTERED_OXRIDL:.oxridl=.mli) $(FILTERED_OXRIDL:.oxridl=.ml) $(C_OXRIDL)
+
+FILTERED_C_CXX := $(filter %.c %.$(EXT_CXX), $(FILTERED))
+OBJ_C_CXX      := $(FILTERED_C_CXX:.c=.$(EXT_OBJ))
+OBJ_C_CXX      := $(OBJ_C_CXX:.$(EXT_CXX)=.$(EXT_OBJ))
+
+PRE_TARGETS  += $(AUTO_MLL) $(AUTO_MLY) $(AUTO_IDL) $(AUTO_OXRIDL) $(AUTO_ZOG) $(AUTO_REP) $(AUTO_GLADE)
+
+ALL_DEPS     := $(DEP_ML) $(DEP_MLI) $(DEP_MLL) $(DEP_MLY) $(DEP_IDL) $(DEP_OXRIDL) $(DEP_ZOG) $(DEP_REP) $(DEP_GLADE)
+
+MLDEPS       := $(filter %.d, $(ALL_DEPS))
+MLIDEPS      := $(filter %.di, $(ALL_DEPS))
+BCDEPIS      := $(MLIDEPS:%.di=$(BCDIDIR)/%.di)
+NCDEPIS      := $(MLIDEPS:%.di=$(NCDIDIR)/%.di)
+
+ALLML        := $(filter %.mli %.ml %.mll %.mly %.idl %.oxridl %.rep %.zog %.glade, $(FILTERED))
+
+IMPLO_INTF   := $(ALLML:%.mli=%.mli.__)
+IMPLO_INTF   := $(foreach file, $(IMPLO_INTF), \
+                  $(basename $(file)).cmi $(basename $(file)).cmo)
+IMPLO_INTF   := $(filter-out %.mli.cmo, $(IMPLO_INTF))
+IMPLO_INTF   := $(IMPLO_INTF:%.mli.cmi=%.cmi)
+
+IMPLX_INTF   := $(IMPLO_INTF:.cmo=.cmx)
+
+INTF         := $(filter %.cmi, $(IMPLO_INTF))
+IMPL_CMO     := $(filter %.cmo, $(IMPLO_INTF))
+IMPL_CMX     := $(IMPL_CMO:.cmo=.cmx)
+IMPL_ASM     := $(IMPL_CMO:.cmo=.asm)
+IMPL_S       := $(IMPL_CMO:.cmo=.s)
+
+OBJ_LINK     := $(OBJ_C_IDL) $(OBJ_C_CXX)
+OBJ_FILES    := $(IMPL_CMO:.cmo=.$(EXT_OBJ)) $(OBJ_LINK)
+
+EXECS        := $(addsuffix $(EXE), \
+                            $(sort $(TOPRESULT) $(BCRESULT) $(NCRESULT)))
+ifdef WIN32
+  EXECS      += $(BCRESULT).dll $(NCRESULT).dll
+endif
+
+CLIB_BASE    := $(RESULT)$(RES_CLIB_SUF)
+ifneq ($(strip $(OBJ_LINK)),)
+  RES_CLIB     := lib$(CLIB_BASE).$(EXT_LIB)
+endif
+
+ifdef WIN32
+DLLSONAME := $(CLIB_BASE).dll
+else
+DLLSONAME := dll$(CLIB_BASE).so
+endif
+
+NONEXECS     := $(INTF) $(IMPL_CMO) $(IMPL_CMX) $(IMPL_ASM) $(IMPL_S) \
+		$(OBJ_FILES) $(PRE_TARGETS) $(BCRESULT).cma $(NCRESULT).cmxa \
+		$(NCRESULT).$(EXT_LIB) $(BCRESULT).cmi $(BCRESULT).cmo \
+		$(NCRESULT).cmi $(NCRESULT).cmx $(NCRESULT).o \
+		$(RES_CLIB) $(IMPL_CMO:.cmo=.annot) \
+		$(LIB_PACK_NAME).cmi $(LIB_PACK_NAME).cmo $(LIB_PACK_NAME).cmx $(LIB_PACK_NAME).o
+
+ifndef STATIC
+  NONEXECS += $(DLLSONAME)
+endif
+
+ifndef LIBINSTALL_FILES
+  LIBINSTALL_FILES := $(RESULT).mli $(RESULT).cmi $(RESULT).cma \
+		      $(RESULT).cmxa $(RESULT).$(EXT_LIB) $(RES_CLIB)
+  ifndef STATIC
+    ifneq ($(strip $(OBJ_LINK)),)
+      LIBINSTALL_FILES += $(DLLSONAME)
+    endif
+  endif
+endif
+
+export LIBINSTALL_FILES
+
+ifdef WIN32
+  # some extra stuff is created while linking DLLs
+  NONEXECS   += $(BCRESULT).$(EXT_LIB) $(BCRESULT).exp $(NCRESULT).exp $(CLIB_BASE).exp $(CLIB_BASE).lib
+endif
+
+TARGETS      := $(EXECS) $(NONEXECS)
+
+# If there are IDL-files
+ifneq ($(strip $(FILTERED_IDL)),)
+  MAYBE_IDL := -cclib -lcamlidl
+endif
+
+ifdef USE_CAMLP4
+  CAMLP4PATH := \
+    $(shell $(CAMLP4) -where 2>/dev/null || echo /usr/lib/camlp4)
+  INCFLAGS := -I $(CAMLP4PATH)
+  CINCFLAGS := -I$(CAMLP4PATH)
+endif
+
+DINCFLAGS := $(INCFLAGS) $(SOURCE_DIRS:%=-I %) $(OCAML_DEFAULT_DIRS:%=-I %)
+INCFLAGS := $(DINCFLAGS) $(INCDIRS:%=-I %)
+CINCFLAGS += $(SOURCE_DIRS:%=-I%) $(INCDIRS:%=-I%) $(OCAML_DEFAULT_DIRS:%=-I%)
+
+ifndef MSVC
+CLIBFLAGS += $(SOURCE_DIRS:%=-L%) $(LIBDIRS:%=-L%) \
+             $(EXTLIBDIRS:%=-L%) $(EXTLIBDIRS:%=-Wl,$(RPATH_FLAG)%) \
+             $(OCAML_DEFAULT_DIRS:%=-L%)
+endif
+
+ifndef PROFILING
+  INTF_OCAMLC := $(OCAMLC)
+else
+  ifndef THREADS
+    INTF_OCAMLC := $(OCAMLCP) -p $(OCAMLCPFLAGS)
+  else
+    # OCaml does not support profiling byte code
+    # with threads (yet), therefore we force an error.
+    ifndef REAL_OCAMLC
+      $(error Profiling of multithreaded byte code not yet supported by OCaml)
+    endif
+    INTF_OCAMLC := $(OCAMLC)
+  endif
+endif
+
+ifndef MSVC
+COMMON_LDFLAGS := $(LDFLAGS:%=-ccopt %) $(SOURCE_DIRS:%=-ccopt -L%) \
+		  $(LIBDIRS:%=-ccopt -L%) $(EXTLIBDIRS:%=-ccopt -L%) \
+		  $(EXTLIBDIRS:%=-ccopt -Wl,$(RPATH_FLAG)%) \
+		  $(OCAML_DEFAULT_DIRS:%=-ccopt -L%)
+else
+COMMON_LDFLAGS := -ccopt "/link -NODEFAULTLIB:LIBC $(LDFLAGS:%=%) $(SOURCE_DIRS:%=-LIBPATH:%) \
+		  $(LIBDIRS:%=-LIBPATH:%) $(EXTLIBDIRS:%=-LIBPATH:%) \
+		  $(OCAML_DEFAULT_DIRS:%=-LIBPATH:%) "
+endif
+
+CLIBS_OPTS := $(CLIBS:%=-cclib -l%)
+ifdef MSVC
+  ifndef STATIC
+  # MSVC libraries do not have 'lib' prefix
+  CLIBS_OPTS := $(CLIBS:%=-cclib %.lib)
+  endif
+endif
+
+ifneq ($(strip $(OBJ_LINK)),)
+  ifdef CREATE_LIB
+    OBJS_LIBS := -cclib -l$(CLIB_BASE) $(CLIBS_OPTS) $(MAYBE_IDL)
+  else
+    OBJS_LIBS := $(OBJ_LINK) $(CLIBS_OPTS) $(MAYBE_IDL)
+  endif
+else
+  OBJS_LIBS := $(CLIBS_OPTS) $(MAYBE_IDL)
+endif
+
+# If we have to make byte-code
+ifndef REAL_OCAMLC
+  BYTE_OCAML := y
+
+  # EXTRADEPS is added dependencies we have to insert for all
+  # executable files we generate.  Ideally it should be all of the
+  # libraries we use, but it's hard to find the ones that get searched on
+  # the path since I don't know the paths built into the compiler, so
+  # just include the ones with slashes in their names.
+  EXTRADEPS := $(addsuffix .cma,$(foreach i,$(LIBS),$(if $(findstring /,$(i)),$(i))))
+  SPECIAL_OCAMLFLAGS := $(OCAMLBCFLAGS)
+
+  REAL_OCAMLC := $(INTF_OCAMLC)
+
+  REAL_IMPL := $(IMPL_CMO)
+  REAL_IMPL_INTF := $(IMPLO_INTF)
+  IMPL_SUF := .cmo
+
+  DEPFLAGS  :=
+  MAKE_DEPS := $(MLDEPS) $(BCDEPIS)
+
+  ifdef CREATE_LIB
+    CFLAGS := $(PIC_CFLAGS) $(CFLAGS)
+    CPPFLAGS := $(PIC_CPPFLAGS) $(CPPFLAGS)
+    ifndef STATIC
+      ifneq ($(strip $(OBJ_LINK)),)
+	MAKEDLL := $(DLLSONAME)
+	ALL_LDFLAGS := -dllib $(DLLSONAME)
+      endif
+    endif
+  endif
+
+  ifndef NO_CUSTOM
+    ifneq "$(strip $(OBJ_LINK) $(THREADS) $(MAYBE_IDL) $(CLIBS))" ""
+      ALL_LDFLAGS += -custom
+    endif
+  endif
+
+  ALL_LDFLAGS += $(INCFLAGS) $(OCAMLLDFLAGS) $(OCAMLBLDFLAGS) \
+                 $(COMMON_LDFLAGS) $(LIBS:%=%.cma)
+  CAMLIDLDLLFLAGS :=
+
+  ifdef THREADS
+    ifdef VMTHREADS
+      THREAD_FLAG := -vmthread
+    else
+      THREAD_FLAG := -thread
+    endif
+    ifndef CREATE_LIB
+      ALL_LDFLAGS := $(THREAD_FLAG) $(ALL_LDFLAGS)
+      ifndef REAL_OCAMLFIND
+        ALL_LDFLAGS := unix.cma threads.cma $(ALL_LDFLAGS)
+      endif
+    endif
+  endif
+
+# we have to make native-code
+else
+  EXTRADEPS := $(addsuffix .cmxa,$(foreach i,$(LIBS),$(if $(findstring /,$(i)),$(i))))
+  ifndef PROFILING
+    SPECIAL_OCAMLFLAGS := $(OCAMLNCFLAGS)
+    PLDFLAGS :=
+  else
+    SPECIAL_OCAMLFLAGS := -p $(OCAMLNCFLAGS)
+    PLDFLAGS := -p
+  endif
+
+  REAL_IMPL := $(IMPL_CMX)
+  REAL_IMPL_INTF := $(IMPLX_INTF)
+  IMPL_SUF := .cmx
+
+  CPPFLAGS := -DNATIVE_CODE $(CPPFLAGS)
+
+  DEPFLAGS  := -native
+  MAKE_DEPS := $(MLDEPS) $(NCDEPIS)
+
+  ALL_LDFLAGS := $(PLDFLAGS) $(INCFLAGS) $(OCAMLLDFLAGS) \
+                 $(OCAMLNLDFLAGS) $(COMMON_LDFLAGS)
+  CAMLIDLDLLFLAGS := -opt
+
+  ifndef CREATE_LIB
+    ALL_LDFLAGS += $(LIBS:%=%.cmxa)
+  else
+    CFLAGS := $(PIC_CFLAGS) $(CFLAGS)
+    CPPFLAGS := $(PIC_CPPFLAGS) $(CPPFLAGS)
+  endif
+
+  ifdef THREADS
+    THREAD_FLAG := -thread
+    ifndef CREATE_LIB
+      ALL_LDFLAGS := $(THREAD_FLAG) $(ALL_LDFLAGS)
+      ifndef REAL_OCAMLFIND
+        ALL_LDFLAGS := unix.cmxa threads.cmxa $(ALL_LDFLAGS)
+      endif
+    endif
+  endif
+endif
+
+export MAKE_DEPS
+
+ifdef ANNOTATE
+  ANNOT_FLAG := -dtypes
+else
+endif
+
+ALL_OCAMLCFLAGS := $(THREAD_FLAG) $(ANNOT_FLAG) $(OCAMLFLAGS) \
+                   $(INCFLAGS) $(SPECIAL_OCAMLFLAGS)
+
+ifdef make_deps
+  -include $(MAKE_DEPS)
+  PRE_TARGETS :=
+endif
+
+###########################################################################
+# USER RULES
+
+# Call "OCamlMakefile QUIET=" to get rid of all of the @'s.
+QUIET=@
+
+# generates byte-code (default)
+byte-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(BCRESULT) \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes
+bc:	byte-code
+
+byte-code-nolink:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) nolink \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes
+bcnl:	byte-code-nolink
+
+top:			$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(TOPRESULT) \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes
+
+# generates native-code
+
+native-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(NCRESULT) \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				make_deps=yes
+nc:	native-code
+
+native-code-nolink:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) nolink \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				make_deps=yes
+ncnl:	native-code-nolink
+
+# generates byte-code libraries
+byte-code-library:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(BCRESULT).cma \
+				REAL_RESULT="$(BCRESULT)" \
+				CREATE_LIB=yes \
+				make_deps=yes
+bcl:	byte-code-library
+
+# generates native-code libraries
+native-code-library:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(NCRESULT).cmxa \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				CREATE_LIB=yes \
+				make_deps=yes
+ncl:	native-code-library
+
+ifdef WIN32
+# generates byte-code dll
+byte-code-dll:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(BCRESULT).dll \
+				REAL_RESULT="$(BCRESULT)" \
+				make_deps=yes
+bcd:	byte-code-dll
+
+# generates native-code dll
+native-code-dll:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(NCRESULT).dll \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				make_deps=yes
+ncd:	native-code-dll
+endif
+
+# generates byte-code with debugging information
+debug-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(BCRESULT) \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes \
+				OCAMLFLAGS="-g $(OCAMLFLAGS)" \
+				OCAMLLDFLAGS="-g $(OCAMLLDFLAGS)"
+dc:	debug-code
+
+debug-code-nolink:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) nolink \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes \
+				OCAMLFLAGS="-g $(OCAMLFLAGS)" \
+				OCAMLLDFLAGS="-g $(OCAMLLDFLAGS)"
+dcnl:	debug-code-nolink
+
+# generates byte-code libraries with debugging information
+debug-code-library:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(BCRESULT).cma \
+				REAL_RESULT="$(BCRESULT)" make_deps=yes \
+				CREATE_LIB=yes \
+				OCAMLFLAGS="-g $(OCAMLFLAGS)" \
+				OCAMLLDFLAGS="-g $(OCAMLLDFLAGS)"
+dcl:	debug-code-library
+
+# generates byte-code for profiling
+profiling-byte-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(BCRESULT) \
+				REAL_RESULT="$(BCRESULT)" PROFILING="y" \
+				make_deps=yes
+pbc:	profiling-byte-code
+
+# generates native-code
+
+profiling-native-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(NCRESULT) \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				PROFILING="y" \
+				make_deps=yes
+pnc:	profiling-native-code
+
+# generates byte-code libraries
+profiling-byte-code-library:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(BCRESULT).cma \
+				REAL_RESULT="$(BCRESULT)" PROFILING="y" \
+				CREATE_LIB=yes \
+				make_deps=yes
+pbcl:	profiling-byte-code-library
+
+# generates native-code libraries
+profiling-native-code-library:	$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(RES_CLIB) $(NCRESULT).cmxa \
+				REAL_RESULT="$(NCRESULT)" PROFILING="y" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				CREATE_LIB=yes \
+				make_deps=yes
+pncl:	profiling-native-code-library
+
+# packs byte-code objects
+pack-byte-code:			$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) $(BCRESULT).cmo \
+				REAL_RESULT="$(BCRESULT)" \
+				PACK_LIB=yes make_deps=yes
+pabc:	pack-byte-code
+
+# packs native-code objects
+pack-native-code:		$(PRE_TARGETS)
+			$(QUIET)$(MAKE) -r -f $(OCAMLMAKEFILE) \
+				$(NCRESULT).cmx $(NCRESULT).o \
+				REAL_RESULT="$(NCRESULT)" \
+				REAL_OCAMLC="$(OCAMLOPT)" \
+				PACK_LIB=yes make_deps=yes
+panc:	pack-native-code
+
+# generates HTML-documentation
+htdoc:	doc/$(RESULT)/html
+
+# generates Latex-documentation
+ladoc:	doc/$(RESULT)/latex
+
+# generates PostScript-documentation
+psdoc:	doc/$(RESULT)/latex/doc.ps
+
+# generates PDF-documentation
+pdfdoc:	doc/$(RESULT)/latex/doc.pdf
+
+# generates all supported forms of documentation
+doc: htdoc ladoc psdoc pdfdoc
+
+###########################################################################
+# LOW LEVEL RULES
+
+$(REAL_RESULT):		$(REAL_IMPL_INTF) $(OBJ_LINK) $(EXTRADEPS) $(RESULTDEPS)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) \
+				$(OCAML_FIND_PACKAGES) $(OCAML_FIND_LINKPKG) \
+				$(ALL_LDFLAGS) $(OBJS_LIBS) -o $@$(EXE) \
+				$(REAL_IMPL)
+
+nolink:			$(REAL_IMPL_INTF) $(OBJ_LINK)
+
+ifdef WIN32
+$(REAL_RESULT).dll:	$(REAL_IMPL_INTF) $(OBJ_LINK)
+			$(CAMLIDLDLL) $(CAMLIDLDLLFLAGS) $(OBJ_LINK) $(CLIBS) \
+				-o $@ $(REAL_IMPL)
+endif
+
+%$(TOPSUFFIX):		$(REAL_IMPL_INTF) $(OBJ_LINK) $(EXTRADEPS)
+			$(REAL_OCAMLFIND) $(OCAMLMKTOP) \
+				$(OCAML_FIND_PACKAGES) $(OCAML_FIND_LINKPKG) \
+				$(ALL_LDFLAGS) $(OBJS_LIBS) -o $@$(EXE) \
+				$(REAL_IMPL)
+
+.SUFFIXES:		.mli .ml .cmi .cmo .cmx .cma .cmxa .$(EXT_OBJ) \
+                        .mly .di .d .$(EXT_LIB) .idl %.oxridl .c .$(EXT_CXX) .h .so \
+                        .rep .zog .glade
+
+ifndef STATIC
+ifdef MINGW
+$(DLLSONAME):		$(OBJ_LINK)
+			$(CC) $(CFLAGS) $(CFLAGS_WIN32) $(OBJ_LINK) -shared -o $@ \
+			-Wl,--whole-archive $(wildcard $(foreach dir,$(LIBDIRS),$(CLIBS:%=$(dir)/lib%.a))) \
+			 $(OCAMLLIBPATH)/ocamlrun.a \
+			-Wl,--export-all-symbols \
+			-Wl,--no-whole-archive
+else
+ifdef MSVC
+$(DLLSONAME):		$(OBJ_LINK)
+			link /NOLOGO /DLL /OUT:$@ $(OBJ_LINK) \
+			 $(wildcard $(foreach dir,$(LIBDIRS),$(CLIBS:%=$(dir)/%.lib))) \
+			 $(OCAMLLIBPATH)/ocamlrun.lib
+
+else
+$(DLLSONAME):		$(OBJ_LINK)
+			$(OCAMLMKLIB) $(INCFLAGS) $(CLIBFLAGS) \
+				-o $(CLIB_BASE) $(OBJ_LINK) $(CLIBS:%=-l%) \
+				$(OCAMLMKLIB_FLAGS)
+endif
+endif
+endif
+
+ifndef LIB_PACK_NAME
+$(RESULT).cma:		$(REAL_IMPL_INTF) $(MAKEDLL) $(EXTRADEPS) $(RESULTDEPS)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) -a $(ALL_LDFLAGS) \
+				$(OBJS_LIBS) -o $@ $(OCAMLBLDFLAGS) $(REAL_IMPL)
+
+$(RESULT).cmxa $(RESULT).$(EXT_LIB):	$(REAL_IMPL_INTF) $(EXTRADEPS) $(RESULTDEPS)
+			$(REAL_OCAMLFIND) $(OCAMLOPT) -a $(ALL_LDFLAGS) $(OBJS_LIBS) \
+				$(OCAMLNLDFLAGS) -o $@ $(REAL_IMPL)
+else
+ifdef BYTE_OCAML
+$(LIB_PACK_NAME).cmi $(LIB_PACK_NAME).cmo: $(REAL_IMPL_INTF)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) -pack -o $(LIB_PACK_NAME).cmo $(REAL_IMPL)
+else
+$(LIB_PACK_NAME).cmi $(LIB_PACK_NAME).cmx: $(REAL_IMPL_INTF)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) -pack -o $(LIB_PACK_NAME).cmx $(REAL_IMPL)
+endif
+
+$(RESULT).cma:		$(LIB_PACK_NAME).cmi $(LIB_PACK_NAME).cmo $(MAKEDLL) $(EXTRADEPS) $(RESULTDEPS)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) -a $(ALL_LDFLAGS) \
+				$(OBJS_LIBS) -o $@ $(OCAMLBLDFLAGS) $(LIB_PACK_NAME).cmo
+
+$(RESULT).cmxa $(RESULT).$(EXT_LIB):	$(LIB_PACK_NAME).cmi $(LIB_PACK_NAME).cmx $(EXTRADEPS) $(RESULTDEPS)
+			$(REAL_OCAMLFIND) $(OCAMLOPT) -a $(ALL_LDFLAGS) $(OBJS_LIBS) \
+				$(OCAMLNLDFLAGS) -o $@ $(LIB_PACK_NAME).cmx
+endif
+
+$(RES_CLIB): 		$(OBJ_LINK)
+ifndef MSVC
+  ifneq ($(strip $(OBJ_LINK)),)
+		      $(AR) rcs $@ $(OBJ_LINK)
+  endif
+else
+  ifneq ($(strip $(OBJ_LINK)),)
+			lib -nologo -debugtype:cv -out:$(RES_CLIB) $(OBJ_LINK)
+  endif
+endif
+
+.mli.cmi: $(EXTRADEPS)
+			$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+			if [ -z "$$pp" ]; then \
+			  echo $(REAL_OCAMLFIND) $(INTF_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c $(THREAD_FLAG) $(ANNOT_FLAG) \
+				$(OCAMLFLAGS) $(INCFLAGS) $<; \
+			  $(REAL_OCAMLFIND) $(INTF_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c $(THREAD_FLAG) $(ANNOT_FLAG) \
+				$(OCAMLFLAGS) $(INCFLAGS) $<; \
+			else \
+			    echo $(REAL_OCAMLFIND) $(INTF_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c -pp \"$$pp $(PPFLAGS)\" $(THREAD_FLAG) $(ANNOT_FLAG) \
+				$(OCAMLFLAGS) $(INCFLAGS) $<; \
+			    $(REAL_OCAMLFIND) $(INTF_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c -pp "$$pp $(PPFLAGS)" $(THREAD_FLAG) $(ANNOT_FLAG) \
+				$(OCAMLFLAGS) $(INCFLAGS) $<; \
+			fi
+
+.ml.cmi .ml.$(EXT_OBJ) .ml.cmx .ml.cmo: $(EXTRADEPS)
+			$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+			if [ -z "$$pp" ]; then \
+			  echo $(REAL_OCAMLFIND) $(REAL_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c $(ALL_OCAMLCFLAGS) $<; \
+			  $(REAL_OCAMLFIND) $(REAL_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c $(ALL_OCAMLCFLAGS) $<; \
+			else \
+			  echo $(REAL_OCAMLFIND) $(REAL_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c -pp \"$$pp $(PPFLAGS)\" $(ALL_OCAMLCFLAGS) $<; \
+			  $(REAL_OCAMLFIND) $(REAL_OCAMLC) $(OCAML_FIND_PACKAGES) \
+				-c -pp "$$pp $(PPFLAGS)" $(ALL_OCAMLCFLAGS) $<; \
+			fi
+
+ifdef PACK_LIB
+$(REAL_RESULT).cmo $(REAL_RESULT).cmx $(REAL_RESULT).o: $(REAL_IMPL_INTF) $(OBJ_LINK) $(EXTRADEPS)
+			$(REAL_OCAMLFIND) $(REAL_OCAMLC) -pack $(ALL_LDFLAGS) \
+				$(OBJS_LIBS) -o $@ $(REAL_IMPL)
+endif
+
+.PRECIOUS:		%.ml
+%.ml:			%.mll
+			$(OCAMLLEX) $<
+
+.PRECIOUS:		%.ml %.mli
+%.ml %.mli:		%.mly
+			$(OCAMLYACC) $(YFLAGS) $<
+
+.PRECIOUS:		%.ml
+%.ml:			%.rep
+			$(CAMELEON_REPORT) $(CAMELEON_REPORT_FLAGS) -gen $<
+
+.PRECIOUS:		%.ml
+%.ml:			%.zog
+			$(CAMELEON_ZOGGY)  $(CAMELEON_ZOGGY_FLAGS) -impl $< > $@
+
+.PRECIOUS:		%.ml
+%.ml:			%.glade
+			$(OCAML_GLADECC)  $(OCAML_GLADECC_FLAGS) $< > $@
+
+.PRECIOUS:		%.ml %.mli
+%.ml %.mli:		%.oxridl
+			$(OXRIDL) $<
+
+.PRECIOUS:		%.ml %.mli %_stubs.c %.h
+%.ml %.mli %_stubs.c %.h:		%.idl
+			$(CAMLIDL) $(MAYBE_IDL_HEADER) $(IDLFLAGS) \
+				$(CAMLIDLFLAGS) $<
+			$(QUIET)if [ $(NOIDLHEADER) ]; then touch $*.h; fi
+
+.c.$(EXT_OBJ):
+			$(OCAMLC) -c -cc "$(CC)" -ccopt "$(CFLAGS) \
+				$(CPPFLAGS) $(CPPFLAGS_WIN32) \
+				$(CFLAGS_WIN32) $(CINCFLAGS) $(CFLAG_O)$@ " $< 
+
+.$(EXT_CXX).$(EXT_OBJ):
+			$(CXX) -c $(CXXFLAGS) $(CINCFLAGS) $(CPPFLAGS) \
+				-I'$(OCAMLLIBPATH)' \
+				$< $(CFLAG_O)$@
+
+$(MLDEPDIR)/%.d:	%.ml
+			$(QUIET)echo making $@ from $<
+			$(QUIET)if [ ! -d $(@D) ]; then mkdir -p $(@D); fi
+			$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+			if [ -z "$$pp" ]; then \
+			  $(REAL_OCAMLFIND) $(OCAMLDEP) $(OCAML_DEP_PACKAGES) \
+				$(DINCFLAGS) $< > $@; \
+			else \
+			  $(REAL_OCAMLFIND) $(OCAMLDEP) $(OCAML_DEP_PACKAGES) \
+				-pp "$$pp $(PPFLAGS)" $(DINCFLAGS) $< > $@; \
+			fi
+
+$(BCDIDIR)/%.di $(NCDIDIR)/%.di:	%.mli
+			$(QUIET)echo making $@ from $<
+			$(QUIET)if [ ! -d $(@D) ]; then mkdir -p $(@D); fi
+			$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+			if [ -z "$$pp" ]; then \
+			  $(REAL_OCAMLFIND) $(OCAMLDEP) $(DEPFLAGS) $(DINCFLAGS) $< > $@; \
+			else \
+			  $(REAL_OCAMLFIND) $(OCAMLDEP) $(DEPFLAGS) \
+			    -pp "$$pp $(PPFLAGS)" $(DINCFLAGS) $< > $@; \
+			fi
+
+doc/$(RESULT)/html: $(DOC_FILES)
+	rm -rf $@
+	mkdir -p $@
+	$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+	if [ -z "$$pp" ]; then \
+	  echo $(OCAMLDOC) -html -d $@ $(OCAMLDOCFLAGS) $(INCFLAGS) $(DOC_FILES); \
+	  $(OCAMLDOC) -html -d $@ $(OCAMLDOCFLAGS) $(INCFLAGS) $(DOC_FILES); \
+	else \
+	  echo $(OCAMLDOC) -pp \"$$pp $(PPFLAGS)\" -html -d $@ $(OCAMLDOCFLAGS) \
+	  	$(INCFLAGS) $(DOC_FILES); \
+	  $(OCAMLDOC) -pp "$$pp $(PPFLAGS)" -html -d $@ $(OCAMLDOCFLAGS) \
+	  	$(INCFLAGS) $(DOC_FILES); \
+	fi
+
+doc/$(RESULT)/latex: $(DOC_FILES)
+	rm -rf $@
+	mkdir -p $@
+	$(QUIET)pp=`sed -n -e '/^#/d' -e 's/(\*pp \([^*]*\) \*)/\1/p;q' $<`; \
+	if [ -z "$$pp" ]; then \
+	  echo $(OCAMLDOC) -latex $(OCAMLDOCFLAGS) $(INCFLAGS) \
+	  	$(DOC_FILES) -o $@/doc.tex; \
+	  $(OCAMLDOC) -latex $(OCAMLDOCFLAGS) $(INCFLAGS) $(DOC_FILES) \
+	  	-o $@/doc.tex; \
+	else \
+	  echo $(OCAMLDOC) -pp \"$$pp $(PPFLAGS)\" -latex $(OCAMLDOCFLAGS) \
+	  	$(INCFLAGS) $(DOC_FILES) -o $@/doc.tex; \
+	  $(OCAMLDOC) -pp "$$pp $(PPFLAGS)" -latex $(OCAMLDOCFLAGS) \
+	  	$(INCFLAGS) $(DOC_FILES) -o $@/doc.tex; \
+	fi
+
+doc/$(RESULT)/latex/doc.ps: doc/$(RESULT)/latex
+	cd doc/$(RESULT)/latex && \
+	  $(LATEX) doc.tex && \
+	  $(LATEX) doc.tex && \
+	  $(DVIPS) $(DVIPSFLAGS) doc.dvi -o $(@F)
+
+doc/$(RESULT)/latex/doc.pdf: doc/$(RESULT)/latex/doc.ps
+	cd doc/$(RESULT)/latex && $(PS2PDF) $(<F)
+
+define make_subproj
+.PHONY:
+subproj_$(1):
+	$$(eval $$(call PROJ_$(1)))
+	$(QUIET)if [ "$(SUBTARGET)" != "all" ]; then \
+	  $(MAKE) -f $(OCAMLMAKEFILE) $(SUBTARGET); \
+	fi
+endef
+
+$(foreach subproj,$(SUBPROJS),$(eval $(call make_subproj,$(subproj))))
+
+.PHONY:
+subprojs: $(SUBPROJS:%=subproj_%)
+
+###########################################################################
+# (UN)INSTALL RULES FOR LIBRARIES
+
+.PHONY: libinstall
+libinstall:	all
+	$(QUIET)printf "\nInstalling library with ocamlfind\n"
+	$(OCAMLFIND) install $(OCAMLFIND_INSTFLAGS) $(RESULT) META $(LIBINSTALL_FILES)
+	$(QUIET)printf "\nInstallation successful.\n"
+
+.PHONY: libuninstall
+libuninstall:
+	$(QUIET)printf "\nUninstalling library with ocamlfind\n"
+	$(OCAMLFIND) remove $(OCAMLFIND_INSTFLAGS) $(RESULT)
+	$(QUIET)printf "\nUninstallation successful.\n"
+
+.PHONY: rawinstall
+rawinstall:	all
+	$(QUIET)printf "\nInstalling library to: $(OCAML_LIB_INSTALL)\n"
+	-install -d $(OCAML_LIB_INSTALL)
+	for i in $(LIBINSTALL_FILES); do \
+	  if [ -f $$i ]; then \
+	    install -c -m 0644 $$i $(OCAML_LIB_INSTALL); \
+	  fi; \
+	done
+	$(QUIET)printf "\nInstallation successful.\n"
+
+.PHONY: rawuninstall
+rawuninstall:
+	$(QUIET)printf "\nUninstalling library from: $(OCAML_LIB_INSTALL)\n"
+	cd $(OCAML_LIB_INSTALL); rm $(notdir $(LIBINSTALL_FILES))
+	$(QUIET)printf "\nUninstallation successful.\n"
+
+###########################################################################
+# MAINTAINANCE RULES
+
+.PHONY:	clean
+clean::
+	rm -f $(TARGETS) $(TRASH)
+	rm -rf $(BCDIDIR) $(NCDIDIR) $(MLDEPDIR)
+
+.PHONY:	cleanup
+cleanup::
+	rm -f $(NONEXECS) $(TRASH)
+	rm -rf $(BCDIDIR) $(NCDIDIR) $(MLDEPDIR)
+
+.PHONY: clean-doc
+clean-doc::
+	rm -rf doc
+
+.PHONY: nobackup
+nobackup:
+	rm -f *.bak *~ *.dup
diff --git a/src/duppy.ml b/src/duppy.ml
new file mode 100644
index 0000000..3f855fa
--- /dev/null
+++ b/src/duppy.ml
@@ -0,0 +1,1121 @@
+(*****************************************************************************
+
+  Duppy, a task scheduler for OCaml.
+  Copyright 2003-2010 Savonet team
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details, fully stated in the COPYING
+  file at the root of the liquidsoap distribution.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+ *****************************************************************************)
+
+type fd = Unix.file_descr
+
+external poll : Unix.file_descr array -> Unix.file_descr array -> Unix.file_descr array -> float -> (Unix.file_descr array * Unix.file_descr array * Unix.file_descr array) = "caml_poll"
+
+let poll r w e timeout =
+  let r = Array.of_list r in
+  let w = Array.of_list w in
+  let e = Array.of_list e in
+  let (r, w, e) =
+    poll r w e timeout
+  in
+  (Array.to_list r,
+   Array.to_list w,
+   Array.to_list e)
+
+let select, select_fname =
+  match Sys.os_type with
+    | "Unix" -> poll, "poll"
+    | _ -> Unix.select, "select"
+
+(** [remove f l] is like [List.find f l] but also returns the result of removing
+  * the found element from the original list. *)
+let remove f l =
+  let rec aux acc = function
+    | [] -> raise Not_found
+    | x::l -> if f x then x, List.rev_append acc l else aux (x::acc) l
+  in
+    aux [] l
+
+(** Events and tasks from the implementation point-of-view:
+  * we have to hide the 'a parameter. *)
+
+type e = {
+  r : fd list ;
+  w : fd list ;
+  x : fd list ;
+  t : float
+}
+
+type 'a t = {
+  timestamp : float ;
+  prio : 'a ;
+  enrich   : e -> e ;
+  is_ready : e -> (unit -> 'a t list) option
+}
+
+type 'a scheduler =
+{
+  out_pipe : Unix.file_descr;
+  in_pipe : Unix.file_descr;
+  compare : 'a -> 'a -> int;
+  select_m : Mutex.t;
+  mutable tasks : 'a t list;
+  tasks_m : Mutex.t;
+  mutable ready : ('a * (unit -> 'a t list)) list;
+  ready_m : Mutex.t;
+  mutable queues : Condition.t list;
+  queues_m : Mutex.t;
+  mutable stop : bool;
+  stop_m : Mutex.t
+}
+
+let clear_tasks s = 
+  Mutex.lock s.tasks_m ;
+  s.tasks <- [] ;
+  Mutex.unlock s.tasks_m 
+
+let create ?(compare=compare) () = 
+  let out_pipe,in_pipe = Unix.pipe () in
+  {
+    out_pipe = out_pipe;
+    in_pipe = in_pipe;
+    compare = compare;
+    select_m = Mutex.create ();
+    tasks = [];
+    tasks_m = Mutex.create ();
+    ready = [];
+    ready_m = Mutex.create ();
+    queues = [];
+    queues_m = Mutex.create ();
+    stop = false;
+    stop_m = Mutex.create ()
+  }
+
+let wake_up s = ignore (Unix.write s.in_pipe (Bytes.of_string "x") 0 1)
+
+module Task = 
+struct
+  (** Events and tasks from the user's point-of-view. *)
+  
+  type event = [
+    | `Delay     of float
+    | `Write     of fd
+    | `Read      of fd
+    | `Exception of fd
+  ]
+  
+  type ('a,'b) task = {
+    priority : 'a ;
+    events   : 'b list ;
+    handler  : 'b list -> ('a,'b) task list
+  }
+  let time () = Unix.gettimeofday ()
+  
+  let rec t_of_task (task:('a,[<event])task) =
+    let t0 = time () in
+      { timestamp = t0 ; prio = task.priority ;
+        enrich = (fun e ->
+                    List.fold_left
+                      (fun e -> function
+                         | `Delay     s -> { e with t = min e.t (t0+.s) }
+                         | `Read      s -> { e with r = s::e.r }
+                         | `Write     s -> { e with w = s::e.w }
+                         | `Exception s -> { e with x = s::e.x })
+                      e task.events) ;
+        is_ready = (fun e ->
+                      let l =
+                        List.filter
+                          (fun evt ->
+                             match (evt :> event) with
+                               | `Delay     s when time () > t0+.s -> true
+                               | `Read      s when List.mem s e.r -> true
+                               | `Write     s when List.mem s e.w -> true
+                               | `Exception s when List.mem s e.x -> true
+                               | _ -> false)
+                          task.events
+                      in
+                        if l = [] then None else
+                          Some (fun () -> List.map t_of_task (task.handler l)))
+      }
+  
+  let add_t s items =
+    let f item = 
+      match item.is_ready {r=[];w=[];x=[];t=0.} with
+        | Some f -> 
+            Mutex.lock s.ready_m ;
+            s.ready <- (item.prio,f) :: s.ready ;
+            Mutex.unlock s.ready_m
+        | None ->
+            Mutex.lock s.tasks_m ;
+            s.tasks <- item :: s.tasks ;
+            Mutex.unlock s.tasks_m ;
+    in
+    List.iter f items ;
+    wake_up s
+  
+  let add s t  = add_t s [t_of_task t]
+end
+
+open Task
+
+let stop s = 
+  clear_tasks s;
+  Mutex.lock s.stop_m;
+  s.stop <- true;
+  Mutex.unlock s.stop_m;
+  wake_up s;
+  Mutex.lock s.ready_m;
+  List.iter Condition.signal s.queues;
+  Mutex.unlock s.ready_m
+
+let tmp = Bytes.create 1024
+
+(** There should be only one call of #process at a time.
+  * Process waits for tasks to become ready, and moves ready tasks
+  * to the ready queue. *)
+let process s log = 
+  (* Compute the union of all events. *)
+  let e =
+    List.fold_left
+      (fun e t -> t.enrich e)
+      { r = [s.out_pipe] ; w = [] ; x = [] ; t = infinity }
+      s.tasks
+  in
+  (* Poll for an event. *)
+  let r,w,x =
+    let rec f () = 
+      try
+        let timeout = 
+          if e.t = infinity then -1. else max 0. (e.t -. (time ())) 
+        in
+        log (Printf.sprintf "Enter %s at %f, timeout %f (%d/%d/%d)."
+             select_fname (time ()) timeout
+           (List.length e.r) (List.length e.w) (List.length e.x)) ;
+        let r,w,x = select e.r e.w e.x timeout in
+        log (Printf.sprintf "Left %s at %f (%d/%d/%d)." select_fname (time ())
+               (List.length r) (List.length w) (List.length x)) ;
+        r,w,x
+      with
+        | Unix.Unix_error (Unix.EINTR,_,_) ->
+          (* [EINTR] means that select was interrupted by 
+           * a signal before any of the selected events 
+           * occurred and before the timeout interval expired.
+           * We catch it and restart.. *) 
+           log (Printf.sprintf "Select interrupted at %f." (time ())) ;
+           f ()
+        | e -> 
+           (* Uncaught exception: 
+            * 1) Discards all tasks currently in the loop (we do not know which 
+            *    socket caused an error).
+            * 2) Re-Raise e *)
+           clear_tasks s ; 
+           raise e 
+    in
+    f ()
+  in
+  (* Empty the wake_up pipe if needed. *)
+  let () =
+    if List.mem s.out_pipe r then
+      (* For safety, we may absorb more than
+       * one write. This avoids bad situation
+       * when exceesive wake_up may fill up the
+       * pipe's write buffer, causing a wake_up 
+       * to become blocking..  *)
+      ignore (Unix.read s.out_pipe tmp 0 1024)
+  in
+  (* Move ready tasks to the ready list. *)
+  let e = { r=r ; w=w ; x=x ; t=0. } in
+    Mutex.lock s.tasks_m ;
+    (* Split [tasks] into [r]eady and still [w]aiting. *)
+    let r,w =
+      List.fold_left
+        (fun (r,w) t ->
+           match t.is_ready e with
+             | Some f -> (t.prio,f)::r, w
+             | None -> r, t::w)
+        ([],[])
+        s.tasks
+    in
+      s.tasks <- w ;
+      Mutex.unlock s.tasks_m ;
+      Mutex.lock s.ready_m ;
+      s.ready <- List.stable_sort (fun (p,_) (p',_) -> s.compare p p') (s.ready @ r) ;
+      Mutex.unlock s.ready_m
+
+  (** Code for a queue to process ready tasks.
+    * Returns true a task was found (and hence processed).
+    *
+    * s.ready_m *must* be locked before calling
+    * this function, and is freed *only* 
+    * if some task was processed. *) 
+let exec s (priorities:'a->bool) =
+  (* This assertion does not work on
+   * win32 because a thread can double-lock
+   * the same mutex.. *)
+  if Sys.os_type <> "Win32" then
+    assert(not (Mutex.try_lock s.ready_m)) ;
+  try
+    let (_,task),remaining =
+      remove
+        (fun (p,_) ->
+           priorities p)
+        s.ready
+    in
+      s.ready <- remaining ;
+      Mutex.unlock s.ready_m ;
+      add_t s (task ()) ;
+      true
+  with Not_found -> false
+
+exception Queue_stopped
+exception Queue_processed
+
+ (** Main loop for queues. *)
+let queue ?log ?(priorities=fun _ -> true) s name = 
+  let log = 
+    match log with
+      | Some e -> e
+      | None -> Printf.printf "queue %s: %s\n" name
+  in
+  let c =
+    let c = Condition.create () in
+      Mutex.lock s.queues_m ;
+      s.queues <- c::s.queues ;
+      Mutex.unlock s.queues_m ;
+      log (Printf.sprintf "Queue #%d starting..." (List.length s.queues)) ;
+      c
+  in
+  (* Try to process ready tasks, otherwise try to become the master,
+   * or be a slave and wait for the master to get some more ready tasks. *)
+  let run () =
+    Mutex.lock s.stop_m;
+    let stop = s.stop in
+    Mutex.unlock s.stop_m;
+    if stop then raise Queue_stopped;
+    (* Lock the ready tasks until the queue has a task to proceed,
+     * *or* is really ready to restart on its condition, see the 
+     * Condition.wait call below for the atomic unlock and wait. *)
+    Mutex.lock s.ready_m ;
+    log (Printf.sprintf "There are %d ready tasks." (List.length s.ready)) ;
+    if exec s priorities then raise Queue_processed;
+    let wake () = 
+      (* Wake up other queues if there are remaining tasks *)
+      if s.ready <> [] then
+       begin
+	      Mutex.lock s.queues_m ;
+        List.iter (fun x -> if x <> c then Condition.signal x) 
+		    s.queues ;
+	      Mutex.unlock s.queues_m 
+	     end ;
+    in
+    if Mutex.try_lock s.select_m then begin
+	   (* Processing finished for me
+	    * I can unlock ready_m now.. *)
+	    Mutex.unlock s.ready_m ;
+      process s log ;
+      Mutex.unlock s.select_m ;
+	    Mutex.lock s.ready_m ;
+      wake () ;
+	    Mutex.unlock s.ready_m
+    end else begin
+    (* We use s.ready_m mutex here.
+  	 * Hence, we avoid race conditions
+  	 * with any other queue being processing
+  	 * a task that would create a new task: 
+  	 * without this mutex, the new task may not be 
+	   * notified to this queue if it is going to sleep
+	   * in concurrency..
+	   * It also avoid race conditions when restarting 
+	   * queues since s.ready_m is locked until all 
+	   * queues have been signaled. *)
+     Condition.wait c s.ready_m;
+     Mutex.unlock s.ready_m
+    end
+   in
+   let rec f () =
+    begin
+     try run () with
+      | Queue_processed -> ()
+    end;
+    (f [@tailcall]) ()
+   in
+   try
+     f ()
+   with Queue_stopped -> ()
+
+module Async =
+struct
+  (* m is used to make sure that 
+   * calls to [wake_up] and [stop]
+   * are thread-safe. *)
+  type t = 
+   { 
+     stop       : bool ref;
+     mutable fd : fd option;
+     m          : Mutex.t
+   }
+
+  exception Stopped
+
+  let add ~priority (scheduler:'a scheduler) f = 
+   (* A pipe to wake up the task *)
+   let out_pipe,in_pipe = Unix.pipe () in
+   let stop = ref false in
+   let tmp = Bytes.create 1024 in
+   let rec task l =
+      if List.exists ((=) (`Read out_pipe)) l then
+        (* Consume data from the pipe *)
+        ignore (Unix.read out_pipe tmp 0 1024) ;
+      if !stop then begin
+        begin 
+          try
+            (* This interface is purely asynchronous
+             * so we close both sides of the pipe here. *)
+            Unix.close in_pipe ;
+            Unix.close out_pipe 
+          with _ -> ()
+        end ;
+        [] 
+      end
+      else begin
+        let delay = f () in
+        let event = 
+          if delay >= 0. then
+            [`Delay delay ]
+          else
+            []
+        in
+        [{ priority = priority ;
+           events = `Read out_pipe :: event ;
+           handler = task }]
+      end
+   in
+   let task = 
+     {
+       priority = priority ;
+       events = [`Read out_pipe] ;
+       handler  = task
+     }
+   in
+   add scheduler task ;
+   { stop = stop ; fd = Some in_pipe ; 
+     m = Mutex.create () }
+
+  let wake_up t =
+    Mutex.lock t.m ;
+    try
+     begin
+      match t.fd with
+         | Some t -> ignore (Unix.write t (Bytes.of_string " ") 0 1)
+         | None -> raise Stopped
+     end ;
+     Mutex.unlock t.m
+    with
+      | e -> Mutex.unlock t.m; raise e
+    
+
+  let stop t = 
+    Mutex.lock t.m;
+    try 
+      begin
+       match t.fd with
+         | Some c ->
+              t.stop := true ; 
+              ignore (Unix.write c (Bytes.of_string " ") 0 1)
+         | None   -> raise Stopped
+      end ;
+      t.fd <- None ;
+      Mutex.unlock t.m
+    with
+      | e -> Mutex.unlock t.m; raise e
+end
+
+module type Transport_t =
+sig
+  type t
+  type bigarray = (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+  val sock     : t -> Unix.file_descr
+  val read     : t -> Bytes.t -> int -> int -> int
+  val write    : t -> Bytes.t -> int -> int -> int
+  val ba_write : t -> bigarray -> int -> int -> int
+end
+
+module Unix_transport : Transport_t with type t = Unix.file_descr =
+struct
+  type t = Unix.file_descr
+  type bigarray = (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+  let sock s = s
+  let read = Unix.read
+  let write = Unix.write
+  external ba_write : t -> bigarray -> int -> int -> int = "ocaml_duppy_write_ba"
+end
+
+module type Io_t =
+sig
+  type socket
+  type marker = Length of int | Split of string
+  type bigarray = (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+  type failure =
+    | Io_error
+    | Unix of Unix.error*string*string
+    | Unknown of exn
+    | Timeout
+  val read :
+        ?recursive:bool -> ?init:string -> ?on_error:(string*failure -> unit) ->
+        ?timeout:float -> priority:'a -> 'a scheduler -> socket ->
+        marker -> (string*(string option) -> unit) -> unit
+  val write :
+        ?exec:(unit -> unit) -> ?on_error:(failure -> unit) ->
+        ?bigarray:bigarray -> ?string:Bytes.t -> ?timeout:float -> priority:'a ->
+        'a scheduler -> socket -> unit
+end
+
+module MakeIo(Transport:Transport_t) : Io_t with type socket = Transport.t = 
+struct
+  type socket = Transport.t
+  type marker = Length of int | Split of string
+  type failure = 
+    | Io_error 
+    | Unix of Unix.error*string*string 
+    | Unknown of exn
+    | Timeout
+
+  exception Io
+  exception Timeout_exc
+
+  type bigarray = (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+
+  let read ?(recursive=false) ?(init="") ?(on_error=fun _ -> ())
+           ?timeout ~priority (scheduler:'a scheduler) 
+           socket marker exec = 
+    let length = 1024 in
+    let b = Buffer.create length in
+    let buf = Bytes.make length ' ' in
+    Buffer.add_string b init ;
+    let unix_socket = Transport.sock socket in
+    let events,check_timeout = 
+      match timeout with
+        | None -> [`Read unix_socket], fun _ -> false
+        | Some f -> [`Read unix_socket; `Delay f],
+                    (List.mem (`Delay f))
+    in
+    let rec f l =
+      if check_timeout l then
+        raise Timeout_exc ;
+      if (List.mem (`Read unix_socket) l) then
+       begin
+        let input = Transport.read socket buf 0 length in
+        if input<=0 then raise Io ;
+        Buffer.add_subbytes b buf 0 input
+       end ;
+      let ret = 
+        match marker with
+          | Split r ->
+                let rex = Pcre.regexp r in
+                let acc = Buffer.contents b in
+                let ret = Pcre.full_split ~max:2 ~rex acc  in
+                let rec p l = 
+                 match l with
+                   | Pcre.Text x :: Pcre.Delim _ :: l -> 
+                       let f b x =
+                         match x with
+                           | Pcre.Text s 
+                           | Pcre.Delim s -> Buffer.add_string b s 
+                           | _      -> ()
+                       in
+                       if recursive then
+                        begin
+                         Buffer.reset b;
+                         List.iter (f b) l ;
+                         Some (x,None)
+                        end
+                       else
+                        begin
+                         let b = Buffer.create 10 in
+                         List.iter (f b) l ;
+                         Some (x, Some (Buffer.contents b))
+                        end
+                   | _ :: l' -> p l'
+                   | [] -> None
+                in
+                p ret
+          | Length n when n <= Buffer.length b -> 
+              let s = Buffer.sub b 0 n in
+              let rem = Buffer.sub b n (Buffer.length b - n) in
+              if recursive then
+               begin
+                Buffer.reset b ;
+                Buffer.add_string b rem ;
+                Some (s, None)
+               end
+              else
+                Some (s, Some rem)
+          | _ -> None
+      in
+      (* Catch all exceptions.. *)
+      let f x =
+       try
+        f x
+       with
+         | Io -> on_error (Buffer.contents b,Io_error); []
+         | Timeout_exc -> on_error (Buffer.contents b,Timeout); []
+         | Unix.Unix_error(x,y,z) -> 
+                 on_error (Buffer.contents b,Unix(x,y,z)); []
+         | e ->  on_error (Buffer.contents b,Unknown e); []
+      in
+      match ret with
+        | Some x ->
+            begin
+              match x with
+                | s,Some _ when recursive ->
+                     exec (s,None) ;
+                     [{ priority = priority ; 
+                        events = events ;
+                        handler = f }]
+                | _ -> exec x; []
+            end
+        | None ->
+             [{ priority = priority ; 
+                events = events ;
+                handler = f }]
+    in
+    (* Catch all exceptions.. *)
+    let f x = 
+      try
+        f x 
+      with
+        | Io -> on_error (Buffer.contents b,Io_error); []
+        | Timeout_exc -> on_error (Buffer.contents b,Timeout); []
+        | Unix.Unix_error(x,y,z) -> 
+                on_error (Buffer.contents b,Unix(x,y,z)); []
+        | e ->  on_error (Buffer.contents b,Unknown e); []
+    in
+      (* First one is without read,
+       * in case init contains the wanted match. 
+       * Unless the user sets timeout to 0., this
+       * should not interfer with user-defined timeout.. *)
+      let task = 
+       {
+         priority = priority ;
+         events = [`Delay 0.; `Read unix_socket] ;
+         handler  = f
+       }
+       in
+      add scheduler task
+
+  let write ?(exec=fun () -> ()) ?(on_error=fun _ -> ()) 
+            ?bigarray ?string ?timeout ~priority
+            (scheduler:'a scheduler) socket = 
+    let length,write = 
+      match string,bigarray with
+        | Some s,_ -> 
+            Bytes.length s,
+            Transport.write socket s
+        | None,Some b ->
+            Bigarray.Array1.dim b,
+            Transport.ba_write socket b
+        | _ ->
+            0,fun _ _ -> 0
+    in
+    let unix_socket = Transport.sock (socket:Transport.t) in
+    let exec () =
+      if Sys.os_type = "Win32" then
+        Unix.clear_nonblock unix_socket;
+      exec ()
+    in
+    let events,check_timeout =
+      match timeout with
+        | None -> [`Write unix_socket], fun _ -> false
+        | Some f -> [`Write unix_socket; `Delay f],
+                    (List.mem (`Delay f))
+    in
+    let rec f pos l =
+     try
+      if check_timeout l then
+       raise Timeout_exc ;
+      assert (List.exists ((=) (`Write unix_socket)) l) ;
+      let len = length - pos in
+      let n = write pos len in
+      if n<=0 then (on_error Io_error ; [])
+      else
+      begin
+        if n < len then
+          [{ priority = priority ; events = [`Write unix_socket] ;
+             handler = f (pos+n) }]
+        else
+          (exec () ; [])
+      end
+     with
+       | Unix.Unix_error(Unix.EWOULDBLOCK, _, _) when Sys.os_type = "Win32" ->
+           [{ priority = priority ; events = [`Write unix_socket] ;
+              handler = f pos }]
+       | Timeout_exc -> on_error Timeout; []
+       | Unix.Unix_error(x,y,z) -> on_error (Unix(x,y,z)); []
+       | e -> on_error (Unknown e); []
+    in
+    let task = {
+      priority = priority ;
+      events = events ;
+      handler  = (f 0)
+    } in
+    if length > 0 then
+      (* Win32 is particularly bad with writting on sockets. It is nearly impossible
+       * to write proper non-blocking code. send will block on blocking sockets if
+       * there isn't enough data available instead of returning a partial buffer
+       * and WSAEventSelect will not return if the socket still has available space.
+       * Thus, setting the socket to non-blocking and writting as much as we can. *)
+      if Sys.os_type = "Win32" then
+       begin
+        Unix.set_nonblock unix_socket ;
+        List.iter (add scheduler) (f 0 [`Write unix_socket])
+       end
+      else
+        add scheduler task
+    else 
+        exec ()
+end
+
+module Io : Io_t with type socket = Unix.file_descr = MakeIo(Unix_transport)
+
+(** A monad for implicit continuations or responses *)
+module Monad = 
+struct
+  type ('a,'b) handler = 
+    { return: 'a -> unit ;
+      raise:  'b -> unit }
+  type ('a,'b) t  = ('a,'b) handler -> unit
+
+  let return x = 
+    fun h -> h.return x 
+
+  let raise x = 
+    fun h -> h.raise x
+
+  let bind f g =
+    fun h ->
+      let ret x = 
+        let process = g x in
+        process h
+      in
+      f { return = ret ;
+          raise  = h.raise }
+
+  let (>>=) = bind
+
+  let run ~return:ret ~raise:raise f = 
+    f { return = ret ;
+        raise  = raise }
+
+  let catch f g = 
+    fun h ->
+      let raise x = 
+        let process = g x in
+        process h
+     in
+     f { return = h.return ;
+         raise  = raise }
+
+  let (=<<) = fun x y -> catch y x
+
+  let rec fold_left f a =
+    function
+       | [] -> a
+       | b :: l ->
+          fold_left f (bind a (fun a -> f a b)) l
+
+  let fold_left f a l = fold_left f (return a) l
+
+  let iter f l = fold_left (fun () b -> f b) () l
+
+  module Mutex_o = Mutex
+
+  module Mutex = 
+  struct
+    module type Mutex_control =
+    sig
+      type priority
+      val scheduler : priority scheduler
+      val priority  : priority 
+    end
+
+    module type Mutex_t =
+    sig
+      (** Type for a mutex. *)
+      type mutex
+
+      module Control : Mutex_control
+
+      (** [create ()] creates a mutex. Implementation-wise,
+        * a duppy task is created that will be used to select a
+        * waiting computation, lock the mutex on it and resume it.
+        * Thus, [priority] and [s] represents, resp., the priority
+        * and scheduler used when running calling process' computation. *)
+      val create : unit -> mutex
+
+      (** A computation that locks a mutex
+        * and returns [unit] afterwards. Computation
+        * will be blocked until the mutex is sucessfuly locked. *)
+      val lock : mutex -> (unit,'a) t
+
+      (** A computation that tries to lock a mutex.
+        * Returns immediatly [true] if the mutex was sucesfully locked
+        * or [false] otherwise. *)
+      val try_lock : mutex -> (bool,'a) t
+
+      (** A computation that unlocks a mutex.
+        * Should return immediatly. *)
+      val unlock : mutex -> (unit,'a) t
+    end
+
+    module Factory(Control:Mutex_control) = 
+    struct
+      (* A mutex is either locked or not
+       * and has a list of tasks waiting to get
+       * it. *)
+      type mutex =
+        { mutable locked : bool ;
+          mutable tasks  : ((unit->unit) list) }
+
+      module Control = Control
+
+      let tmp = Bytes.create 1024
+
+      let (x,y) = Unix.pipe ()
+      
+      let stop = ref false
+      
+      let wake_up () = ignore(Unix.write y (Bytes.of_string " ") 0 1)
+      
+      let ctl_m = Mutex_o.create ()
+     
+      let finalise _ = 
+        stop := true ;
+        wake_up ()
+ 
+      let mutexes = Queue.create ()
+
+      let () = Gc.finalise finalise mutexes
+     
+      let register () = 
+        let m = 
+          { locked = false ;
+            tasks = [] } 
+        in
+        Queue.push m mutexes;
+        m
+
+      let cleanup m =
+        Mutex_o.lock ctl_m ;
+        let q = Queue.create () in
+        Queue.iter (fun m' -> if m <> m' then Queue.push m q) mutexes ;
+        Queue.clear mutexes ;
+        Queue.transfer q mutexes ;
+        Mutex_o.unlock ctl_m
+      
+      let task f =
+         { Task.
+           priority = Control.priority ;
+           events = [`Delay 0.];
+           handler = (fun _ -> f (); [])}
+      
+      (* This should only be called when [ctl_m] is locked. *)
+      let process_mutex tasks m =
+        if not m.locked then
+          (* I don't think shuffling tasks
+           * matters here.. *)
+          match m.tasks with
+            | x :: l ->
+               m.tasks <- l ;
+               m.locked <- true ;
+               task x :: tasks
+            | _ -> tasks
+        else tasks
+      
+      let rec handler _ = 
+         Mutex_o.lock ctl_m ;
+         if not !stop then 
+          begin
+           let tasks = 
+             Queue.fold process_mutex [] mutexes
+           in
+           Mutex_o.unlock ctl_m ;
+           ignore(Unix.read x tmp 0 1024) ;
+            { Task.
+               priority = Control.priority ;
+               events   = [`Read x];
+               handler  = handler }  :: tasks
+          end
+         else
+          begin
+           Mutex_o.unlock ctl_m ;
+           try
+             Unix.close x;
+             Unix.close y;
+             []
+           with
+             | _ -> 
+                []
+          end
+      
+      let () = 
+        Task.add Control.scheduler
+         { Task.
+            priority = Control.priority;
+            events   = [`Read x];
+            handler  = handler } 
+     
+      let create () = 
+        Mutex_o.lock ctl_m ;
+        let ret = register () in
+        Mutex_o.unlock ctl_m ;
+        Gc.finalise cleanup ret ;
+        ret
+      
+      let lock m =
+        (fun h' ->
+          Mutex_o.lock ctl_m ;
+          if not m.locked then
+           begin
+            m.locked <- true ;
+            Mutex_o.unlock ctl_m ;
+            h'.return ()
+           end
+          else
+           begin
+            m.tasks <- h'.return :: m.tasks ;
+            Mutex_o.unlock ctl_m
+           end)
+      
+      let try_lock m = 
+        (fun h' ->
+           Mutex_o.lock ctl_m ;
+           if not m.locked then
+            begin
+             m.locked <- true ;
+             Mutex_o.unlock ctl_m ;
+             h'.return true ;
+            end
+           else
+            begin
+             Mutex_o.unlock ctl_m ;
+             h'.return false
+            end)
+      
+      let unlock m =
+        (fun h' -> 
+          Mutex_o.lock ctl_m ;
+          (* Here we allow inter-thread 
+           * and double unlock.. Double unlock
+           * is not necessarily a problem and
+           * inter-thread unlock well.. what is
+           * a thread here ?? :-) *)
+          m.locked <- false ;
+          let wake = m.tasks <> [] in
+          Mutex_o.unlock ctl_m ;
+          if wake then wake_up ();
+          h'.return ())
+    end
+  end
+  module Condition = 
+  struct
+    module Factory(Mutex : Mutex.Mutex_t) = 
+    struct
+      type condition = 
+        { condition_m : Mutex_o.t ;
+          waiting     : (unit -> unit) Queue.t }
+
+      module Control = Mutex.Control
+
+      let create () = 
+        { condition_m = Mutex_o.create ();
+          waiting = Queue.create () }
+
+      (* Mutex.unlock m needs to happen _after_
+       * the task has been registered. *)
+      let wait c m = 
+        (fun h ->
+          let proc = 
+            fun () -> Mutex.lock m h
+          in
+          Mutex_o.lock c.condition_m ;
+          Queue.push proc c.waiting;
+          Mutex_o.unlock c.condition_m ;
+          (* Mutex.unlock does not raise exceptions (for now..) *)
+          let h' = { return = (fun () -> ());
+                     raise  = (fun _ -> assert false) }
+          in
+          Mutex.unlock m h') 
+
+      let wake_up h = 
+        let handler _ = h (); [] in
+        Task.add Control.scheduler
+         { Task.
+            priority = Control.priority;
+            events   = [`Delay 0.];
+            handler  = handler }
+
+      let signal c = 
+        (fun h ->
+          Mutex_o.lock c.condition_m;
+          let h' = Queue.pop c.waiting in
+          Mutex_o.unlock c.condition_m;
+          wake_up h';
+          h.return ())
+
+      let broadcast c =
+        (fun h ->
+          let q = Queue.create () in
+          Mutex_o.lock c.condition_m;
+          Queue.transfer c.waiting q;
+          Mutex_o.unlock c.condition_m;
+          Queue.iter wake_up q;
+          h.return ())
+    end
+  end
+
+  module type Monad_io_t =
+  sig
+    type socket
+    module Io : Io_t with type socket = socket
+    type ('a,'b) handler =
+      { scheduler    : 'a scheduler ;
+        socket       : Io.socket ;
+        mutable data : string ;
+        on_error     : Io.failure -> 'b }
+    val exec : ?delay:float -> priority:'a -> ('a,'b) handler ->
+               ('c,'b) t -> ('c,'b) t
+    val delay : priority:'a -> ('a,'b) handler -> float -> (unit,'b) t
+    val read : ?timeout:float -> priority:'a ->
+               marker:Io.marker -> ('a,'b) handler ->
+               (string,'b) t
+    val read_all : ?timeout:float ->
+                   priority:'a ->
+                   'a scheduler ->
+                   Io.socket -> (string,(string*Io.failure)) t
+    val write : ?timeout:float -> priority:'a -> ('a,'b) handler ->
+                Bytes.t -> (unit,'b) t
+    val write_bigarray : ?timeout:float -> priority:'a -> ('a,'b) handler ->
+                         Io.bigarray -> (unit,'b) t
+  end
+
+  module MakeIo(Io:Io_t) =
+  struct
+    type socket = Io.socket
+    module Io = Io
+    type ('a,'b) handler = 
+      { scheduler    : 'a scheduler ;
+        socket       : Io.socket ;
+        mutable data : string ;
+        on_error     : Io.failure -> 'b }
+
+    let exec ?(delay=0.) ~priority h f = 
+      (fun h' -> 
+        let handler _ =
+          begin
+           try
+             f h'
+           with
+             | e -> h'.raise (h.on_error (Io.Unknown e))
+          end ;
+          []
+        in
+        Task.add h.scheduler 
+          { Task.
+             priority = priority ;
+             events   = [`Delay delay];
+             handler  = handler })
+
+    let delay ~priority h delay = 
+      exec ~delay ~priority h (return ())
+
+    let read ?timeout ~priority ~marker h = 
+      (fun h' -> 
+         let process x =
+           let s = 
+             match x with
+               | s, None -> 
+                   h.data <- "" ;
+                   s
+               | s, Some s' -> 
+                   h.data <- s' ;
+                   s
+           in 
+           h'.return s
+         in
+         let init = h.data in
+         h.data <- "" ;
+         let on_error (s,x) =
+            h.data <- s ; 
+            h'.raise (h.on_error x)
+         in
+         Io.read ?timeout ~priority ~init ~recursive:false 
+                 ~on_error h.scheduler h.socket 
+                 marker process)
+
+   let read_all ?timeout ~priority s sock = 
+     let handler =
+          { scheduler = s ;
+            socket = sock ;
+            data = "" ;
+            on_error = (fun e -> e) }
+     in
+     let buf = Buffer.create 1024 in
+     let rec f () =
+       let data =
+         read ?timeout ~priority 
+              ~marker:(Io.Length 1024)
+              handler
+       in
+       let process data = 
+         Buffer.add_string buf data ;
+         f ()
+        in
+        data >>= process
+     in
+     let catch_ret e =
+       Buffer.add_string buf handler.data ;
+       match e with
+           | Io.Io_error -> return (Buffer.contents buf)
+           | e -> raise (Buffer.contents buf,e)
+     in
+     catch (f ()) catch_ret
+
+    let write ?timeout ~priority h s =
+      (fun h' ->
+         let on_error x =
+           h'.raise (h.on_error x)
+         in
+         let exec () = 
+           h'.return ()
+         in
+         Io.write ?timeout ~priority ~on_error ~exec 
+                  ~string:s h.scheduler h.socket)
+
+    let write_bigarray ?timeout ~priority h ba =
+      (fun h' ->
+         let on_error x =
+           h'.raise (h.on_error x)
+         in
+         let exec () =
+           h'.return ()
+         in
+         Io.write ?timeout ~priority ~on_error ~exec
+                  ~bigarray:ba h.scheduler h.socket)
+  end
+
+  module Io = MakeIo(Io)
+end
+
diff --git a/src/duppy.mli b/src/duppy.mli
new file mode 100644
index 0000000..0d4a527
--- /dev/null
+++ b/src/duppy.mli
@@ -0,0 +1,523 @@
+(*****************************************************************************
+
+  Duppy, a task scheduler for OCaml.
+  Copyright 2003-2010 Savonet team
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details, fully stated in the COPYING
+  file at the root of the liquidsoap distribution.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+ *****************************************************************************)
+
+  (** Advanced scheduler and monad for server-oriented programming. *)
+
+  (**  
+    * {R {i {v 
+    *        The bars could not hold me;
+    *        Force could not control me now.
+    *        They try to keep me down, yeah!
+    *        But Jah put I around.
+    *        (...)
+    *        Let me tell you this -
+    *        I'm a duppy conqueror !
+    *        v}  }  } 
+    * {R {b Lee "Scratch" Perry & Bob Marley - Duppy conqueror }}
+    *
+    * {2 Duppy task scheduler for OCaml.}
+    *
+    * {!Duppy} is a task scheduler for ocaml. It implements a wrapper 
+    * around [Unix.select].
+    * 
+    * Using {!Duppy.Task}, the programmer can easily submit tasks that need to wait 
+    * on a socket even, or for a given timeout (possibly zero).
+    *
+    * With {!Duppy.Async}, one can use a scheduler to submit asynchronous tasks.
+    *
+    * {!Duppy.Io} implements recursive easy reading and writing to a [Unix.file_descr]
+    *
+    * Finally, {!Duppy.Monad} and {!Duppy.Monad.Io} provide a monadic interface to
+    * program server code that with an implicit return/reply execution flow.
+    *
+    * The scheduler can use several queues running concurently, each queue 
+    * processing ready tasks. Of course, a queue should run in its own thread.*)
+
+(** A scheduler is a device for processing tasks. Several queues might run in
+  * different threads, processing one scheduler's tasks. 
+  *
+  * ['a] is the type of objects used for priorities. *)
+type 'a scheduler
+
+(** Initiate a new scheduler 
+  * @param compare the comparison function used to sort tasks according to priorities. 
+  * Works as in [List.sort] *)
+val create : ?compare:('a -> 'a -> int) -> unit -> 'a scheduler 
+
+(** [queue ~log ~priorities s name] 
+ * starts a queue, on the scheduler [s] only processing priorities [p]
+ * for which [priorities p] returns [true].
+ *
+ * Several queues can be run concurrently against [s]. 
+ * @param log Logging function. Default: [Printf.printf "queue %s: %s\n" name]
+ * @param priorities Predicate specifying which priority to process. Default: [fun _ -> _ -> true]
+ *
+ * An exception is raised from this call when duppy's event loops has
+ * crashed. This exception should be considered a MAJOR FAILURE. All current 
+ * non-ready tasks registered for the calling scheduler are dropped. You may
+ * restart Duppy's queues after it is raised but it should only be used to terminate
+ * the process diligently!! *)
+val queue :
+    ?log:(string -> unit) -> ?priorities:('a -> bool) -> 
+    'a scheduler -> string -> unit
+
+(** Stop all queues running on that scheduler, causing them to return. *)
+val stop : 'a scheduler -> unit
+
+(** Core task registration.
+  *
+  * A task will be a set of events to watch, and a corresponding function to
+  * execute when one of the events is trigered.
+  * 
+  * The executed function may then return a list of new tasks to schedule. *)
+module Task : 
+sig
+
+  (** A task is a list of events awaited,
+    * and a function to process events that have occured.
+    *
+    * The ['a] parameter is the type of priorities, ['b] will be a subset of possible
+    * events. *)
+  type ('a,'b) task = {
+    priority : 'a ;
+    events   : 'b list ;
+    handler  : 'b list -> ('a,'b) task list
+  }
+
+  (** Type for possible events. 
+    *
+    * Please not that currently, under win32, all socket used in ocaml-duppy 
+    * are expected to be in blocking mode only! *)
+  type event = [
+    | `Delay of float
+    | `Write of Unix.file_descr
+    | `Read of Unix.file_descr
+    | `Exception of Unix.file_descr
+  ]
+  
+  (** Schedule a task. *)
+  val add :
+      'a scheduler -> ('a,[< event ]) task -> unit
+end
+
+(** Asynchronous task module
+  *
+  * This module implements an asychronous API to {!Duppy.scheduler}
+  * It allows to create a task that will run and then go to sleep. *)
+module Async :
+sig
+
+  type t
+
+  (** Exception raised when trying to wake_up a task 
+    * that has been previously stopped *)
+  exception Stopped
+
+  (** [add ~priority s f] creates an asynchronous task in [s] with
+    * priority [priority].
+    *
+    * The task executes the function [f].
+    * If the task returns a positive float, the function will be executed
+    * again after this delay. Otherwise it goes to sleep, and 
+    * you can use [wake_up] to resume the task and execute [f] again. 
+    * Only a single call to [f] is done at each time. 
+    * Multiple [wake_up] while previous task has not 
+    * finished will result in sequentialized calls to [f]. *)
+  val add : priority:'a -> 'a scheduler -> (unit -> float) -> t
+
+  (** Wake up an asynchronous task. 
+    * Raises [Stopped] if the task has been stopped. *)
+  val wake_up : t -> unit
+
+  (** Stop and remove the asynchronous task. Doesn't quit a running task. 
+    * Raises [Stopped] if the task has been stopped. *)
+  val stop : t -> unit
+end
+
+(** Module type for Io functor. *)
+module type Transport_t =
+sig
+  type t
+  type bigarray = (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+  val sock     : t -> Unix.file_descr
+  val read     : t -> Bytes.t -> int -> int -> int
+  val write    : t -> Bytes.t -> int -> int -> int
+  val ba_write : t -> bigarray -> int -> int -> int
+end
+
+(** Easy parsing of [Unix.file_descr].
+  *
+  * With {!Duppy.Io.read}, you can pass a file descriptor to the scheduler,
+  * along with a marker, and have it run the associated function when the
+  * marker is found.
+  *
+  * With {!Duppy.Io.write}, the schdeduler will try to write recursively to the file descriptor
+  * the given string. *)
+module type Io_t =
+sig
+
+  type socket
+
+  (** Type for markers.
+    *
+    * [Split s] recognizes all regexp allowed by the 
+    * [Pcre] module. *)
+  type marker = Length of int | Split of string
+
+  (** Type of [Bigarray] used here. *)
+  type bigarray = (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+
+  (** Different types of failure.
+    * 
+    * [Io_error] is raised when reading or writing
+    * returned 0. This usually means that the socket
+    * was closed. *)
+  type failure = 
+    | Io_error 
+    | Unix of Unix.error*string*string 
+    | Unknown of exn
+    | Timeout
+
+  (** Wrapper to perform a read on a socket and trigger a function when
+    * a marker has been detected, or enough data has been read.
+    * It reads recursively on a socket, splitting into strings seperated
+    * by the marker (if any) and calls the given function on the list of strings.
+    * 
+    * Can be used recursively or not, depending on the way you process strings. 
+    * Because of Unix's semantic, it is not possible to stop reading
+    * at first marker, so there can be a remaining string. If not used
+    * recursively, the second optional argument may contain a remaining
+    * string. You should then initiate the next read with this value.
+    *
+    * The [on_error] function is used when reading failed on the socket.
+    * Depending on your usage, it can be a hard failure, or simply a lost client.
+    * The string passed to [on_error] contains data read before error 
+    * occured.
+    * @param recursive recursively read and process, default: [true]
+    * @param init initial string for reading, default: [""]
+    * @param on_error function used when read failed, default: [fun _ -> ()] 
+    * @param timeout Terminate with [Timeout] failure if nothing has been read
+    *                after the given amout of time in seconds. More precisely,
+    *                the exception is raised when no character have been read
+    *                and the socket was not close while waiting. Default: wait
+    *                forever. *)
+  val read :
+        ?recursive:bool -> ?init:string -> ?on_error:(string*failure -> unit) ->
+        ?timeout:float -> priority:'a -> 'a scheduler -> socket -> 
+        marker -> (string*(string option) -> unit) -> unit
+
+  (** Similar to [read] but less complex.
+    * [write ?exec ?on_error ?string ?bigarray ~priority scheduler socket] 
+    * write data from [string], or from [bigarray] if no string is given, 
+    * to [socket], and executes [exec] or [on_error] if errors occured.
+    *
+    * Caveat: on Win32, all file descriptors are expected to be in blocking
+    * mode before being passed to this call due to limitations in the emulation
+    * of the unix/posix API. See code comments for more details.
+    *
+    * @param exec function to execute after writing, default: [fun () -> ()] 
+    * @param on_error function to execute when an error occured, default: [fun _ -> ()] 
+    * @param string write data from this string 
+    * @param bigarray write data from this bigarray, if no [string] is given 
+    * @param timeout Terminate with [Timeout] failure if nothing has been written
+    *                after the given amout of time in seconds. More precisely,
+    *                the exception is raised when no character have been written
+    *                and the socket was not close while waiting. Default: wait
+    *                forever. *)
+  val write :
+        ?exec:(unit -> unit) -> ?on_error:(failure -> unit) -> 
+        ?bigarray:bigarray -> ?string:Bytes.t -> ?timeout:float -> priority:'a -> 
+        'a scheduler -> socket -> unit
+end
+
+module MakeIo : functor (Transport : Transport_t) -> Io_t with type socket = Transport.t
+
+module Io : Io_t with type socket = Unix.file_descr
+
+(** Monadic interface to {!Duppy.Io}. 
+  * 
+  * This module can be used to write code
+  * that runs in various Duppy's tasks and
+  * raise values in a completely transparent way.
+  * 
+  * You can see examples of its use
+  * in the [examples/] directory of the
+  * source code and in the files 
+  * [src/tools/{harbor.camlp4,server.camlp4}]
+  * in liquidsoap's code. 
+  * 
+  * When a server communicates
+  * with a client, it performs several
+  * computations and, eventually, terminates.
+  * A computation can either return a new 
+  * value or terminate. For instance:
+  * 
+  * - Client connects.
+  * - Server tries to authenticate the client.
+  * - If authentication is ok, proceed with the next step.
+  * - Otherwise terminate.
+  *
+  * The purpose of the monad is to embed
+  * computations which can either return 
+  * a new value or raise a value that is used
+  * to terminate. *)
+module Monad : 
+sig
+
+  (** Type representing a computation
+    * which returns a value of type ['a] 
+    * or raises a value of type ['b] *) 
+  type ('a,'b) t
+
+  (** [return x] create a computation that 
+    * returns value [x]. *)
+  val return : 'a -> ('a,'b) t
+
+  (** [raise x] create a computation that raises
+    * value [x]. *)
+  val raise  : 'b -> ('a,'b) t
+
+  (** Compose two computations. 
+    * [bind f g] is equivalent to:
+    * [let x = f in g x] where [x] 
+   * has f's return type. *)
+  val bind : ('a,'b) t -> ('a -> ('c,'b) t) -> ('c,'b) t
+
+  (** [>>=] is an alternative notation
+    * for [bind] *)
+  val (>>=) : ('a,'b) t -> ('a -> ('c,'b) t) -> ('c,'b) t
+
+  (** [run f ~return ~raise ()] executes [f] and process 
+    * returned values with [return] or raised values 
+    * with [raise]. *)
+  val run  : return:('a -> unit) -> raise:('b -> unit) -> ('a,'b) t -> unit
+
+  (** [catch f g] redirects values [x] raised during
+    * [f]'s execution to [g]. The name suggests the
+    * usual [try .. with ..] exception catching. *)
+  val catch : ('a,'b) t -> ('b -> ('a,'c) t) -> ('a,'c) t
+
+  (** [=<<] is an alternative notation for catch. *)
+  val (=<<) : ('b -> ('a,'c) t) -> ('a,'b) t -> ('a,'c) t
+
+  (** [fold_left f a [b1; b2; ..]] returns computation 
+    * [ (f a b1) >>= (fun a -> f a b2) >>= ...] *) 
+  val fold_left : ('a -> 'b -> ('a,'c) t) -> 'a -> 'b list -> ('a,'c) t
+
+  (** [iter f [x1; x2; ..]] returns computation
+    * [f x1 >>= (fun () -> f x2) >>= ...] *)
+  val iter : ('a -> (unit,'b) t) -> 'a list -> (unit,'b) t
+
+  (** This module implements monadic 
+    * mutex computations. They can be used
+    * to write blocking code that is compatible
+    * with duppy's tasks, i.e. [Mutex.lock m] blocks
+    * the calling computation and not the calling thread. *)
+  module Mutex : 
+  sig
+    (** Information used to initialize a Mutex module. 
+      * [priority] and [scheduler] are used to initialize a task
+      * which treat mutexes as well as conditions from the below
+      * [Condition] module. *)
+    module type Mutex_control =
+    sig
+      type priority
+      val scheduler : priority scheduler
+      val priority : priority
+    end
+
+    module type Mutex_t =
+    sig
+      (** Type for a mutex. *)
+      type mutex
+
+      module Control : Mutex_control
+
+      (** [create ()] creates a mutex. *)
+      val create : unit -> mutex
+
+      (** A computation that locks a mutex
+        * and returns [unit] afterwards. Computation
+        * will be blocked until the mutex is sucessfuly locked. *)
+      val lock : mutex -> (unit,'a) t
+
+      (** A computation that tries to lock a mutex.
+        * Returns immediatly [true] if the mutex was sucesfully locked
+        * or [false] otherwise. *)
+      val try_lock : mutex -> (bool,'a) t
+
+      (** A computation that unlocks a mutex.
+        * Should return immediatly. *)
+      val unlock : mutex -> (unit,'a) t
+    end
+
+    module Factory(Control : Mutex_control) : Mutex_t 
+  end
+
+  (** This module implements monadic
+    * condition computations. They can be used
+    * to write waiting code that is compatible
+    * with duppy's tasks, i.e. [Condition.wait c m] blocks
+    * the calling computation and not the calling thread
+    * until [Condition.signal c] or [Condition.broadcast c] has 
+    * been called. *)
+  module Condition : 
+  sig
+    module Factory(Mutex : Mutex.Mutex_t) :
+    sig
+      (** Type of a condition, used in [wait] and [broadcast] *)
+      type condition
+
+      (** Create a condition. Implementation-wise,
+        * a duppy task is created that will be used to select a
+        * waiting computation, and resume it.
+        * Thus, [priority] and [s] represents, resp., the priority
+        * and scheduler used when running calling process' computation. *)
+      val create : unit -> condition
+
+      (** [wait h m] is a computation that:
+        * {ul
+        * {- Unlock mutex [m]}
+        * {- Wait until [Condition.signal c] or [Condition.broadcast c] 
+             has been called}
+        * {- Locks mutex [m]}
+        * {- Returns [unit]}} *)
+      val wait : condition -> Mutex.mutex -> (unit,'a) t
+  
+      (** [broadcast c] is a computation that 
+        * resumes all computations waiting on [c]. It should
+        * return immediately. *)
+      val broadcast : condition -> (unit,'a) t
+  
+      (** [signal c] is a computation that resumes one 
+        * computation waiting on [c]. It should return
+        * immediately. *)
+      val signal : condition -> (unit,'a) t
+    end
+  end
+
+  (** This module implements monadic computations
+    * using [Duppy.Io]. It can be used to create
+    * computations that read or write from a socket,
+    * and also to redirect a computation in a different
+    * queue with a new priority. *)
+  module type Monad_io_t =
+  sig
+    type socket
+
+    module Io : Io_t with type socket = socket
+
+    (** {2 Type } *)
+
+    (** A handler for this module
+      * is a record that contains the
+      * required elements. In particular,
+      * [on_error] is a function that transforms
+      * an error raised by [Duppy.Io] to a reply
+      * used to terminate the computation.
+      * [data] is an internal data buffer. It should 
+      * be initialized with [""]. It contains the
+      * remaining data that was received when 
+      * using [read]. If an error occured, 
+      * [data] contain data read before the 
+      * error. *) 
+    type ('a,'b) handler =
+      { scheduler    : 'a scheduler ;
+        socket       : Io.socket ;
+        mutable data : string ;
+        on_error     : Io.failure -> 'b }
+
+    (** {2 Execution flow } *)
+
+    (** [exec ?delay ~priority h f] redirects computation
+      * [f] into a new queue with priority [priority] and
+      * delay [delay] ([0.] by default).
+      * It can be used to redirect a computation that
+      * has to run under a different priority. For instance,
+      * a computation that reads from a socket is generally
+      * not blocking because the function is executed
+      * only when some data is available for reading. 
+      * However, if the data that is read needs to be processed
+      * by a computation that can be blocking, then one may 
+      * use [exec] to redirect this computation into an 
+      * appropriate queue. *)
+    val exec : ?delay:float -> priority:'a -> ('a,'b) handler ->
+               ('c,'b) t -> ('c,'b) t
+
+    (** [delay ~priority h d] creates a computation that returns
+      * [unit] after delay [d] in seconds. *)
+    val delay : priority:'a -> ('a,'b) handler -> float -> (unit,'b) t
+
+    (** {2 Read/write } *)
+
+    (** [read ?timeout ~priority ~marker h] creates a 
+      * computation that reads from [h.socket]
+      * and returns the first string split 
+      * according to [marker]. This function
+      * can be used to create a computation that
+      * reads data from a socket. [timeout] parameter
+      * forces the computation to return an error if
+      * nothing has been read for more than [timeout] 
+      * seconds. Default: wait forever. *)
+    val read : ?timeout:float -> priority:'a -> 
+               marker:Io.marker -> ('a,'b) handler -> 
+               (string,'b) t
+
+    (** [read_all ?timeout ~priority s sock] creates a 
+      * computation that reads all data from [sock]
+      * and returns it. Raised value contains data
+      * read before an error occured. *)
+    val read_all : ?timeout:float ->
+                   priority:'a -> 
+                   'a scheduler -> 
+                   Io.socket -> (string,(string*Io.failure)) t
+
+    (** [write ?timeout ~priority h s] creates a computation
+      * that writes string [s] to [h.socket]. This
+      * function can be used to create a computation
+      * that sends data to a socket. [timeout] parameter
+      * forces the computation to return an error if
+      * nothing has been written for more than [timeout] 
+      * seconds. Default: wait forever. *)
+    val write : ?timeout:float -> priority:'a -> ('a,'b) handler -> 
+                Bytes.t -> (unit,'b) t
+
+    (** [write_bigarray ?timeout ~priority h ba] creates a computation
+      * that writes data from [ba] to [h.socket]. This function
+      * can to create a computation that writes data to a socket. *)
+    val write_bigarray : ?timeout:float -> priority:'a -> ('a,'b) handler ->
+                         Io.bigarray -> (unit,'b) t
+  end
+
+  module MakeIo : functor (Io:Io_t) -> Monad_io_t with type socket = Io.socket and module Io = Io
+
+  module Io : Monad_io_t with type socket = Unix.file_descr and module Io = Io
+end
+
+  (** {2 Some culture..}
+    * {e Duppy is a Caribbean patois word of West African origin meaning ghost or spirit.
+    * Much of Caribbean folklore revolves around duppies. 
+    * Duppies are generally regarded as malevolent spirits. 
+    * They are said to come out and haunt people at night mostly, 
+    * and people from the islands claim to have seen them. 
+    * The 'Rolling Calf', 'Three footed horse' or 'Old Higue' are examples of the more malicious spirits. }
+    * {R {{:http://en.wikipedia.org/wiki/Duppy} http://en.wikipedia.org/wiki/Duppy}}*)
diff --git a/src/duppy_secure_transport.ml b/src/duppy_secure_transport.ml
new file mode 100644
index 0000000..273d30c
--- /dev/null
+++ b/src/duppy_secure_transport.ml
@@ -0,0 +1,19 @@
+type secure_transport_socket = {
+  ctx: SecureTransport.t;
+  sock: Unix.file_descr
+}
+module Ssl_transport : Duppy.Transport_t with type t = secure_transport_socket =
+struct
+  type t = secure_transport_socket
+  type bigarray = (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+  let sock {sock} = sock
+  let read {ctx} buf ofs len =
+    SecureTransport.read ctx buf ofs len
+  let write {ctx} buf ofs len =
+    SecureTransport.write ctx buf ofs len
+  let ba_write _ _ _ _ =
+    failwith "Not implemented!"
+end
+
+module Io = Duppy.MakeIo(Ssl_transport)
+module Monad_io = Duppy.Monad.MakeIo(Io)
diff --git a/src/duppy_secure_transport.mli b/src/duppy_secure_transport.mli
new file mode 100644
index 0000000..e176117
--- /dev/null
+++ b/src/duppy_secure_transport.mli
@@ -0,0 +1,6 @@
+type secure_transport_socket = {
+  ctx: SecureTransport.t;
+  sock: Unix.file_descr
+}
+module Io : Duppy.Io_t with type socket = secure_transport_socket
+module Monad_io : Duppy.Monad.Monad_io_t with type socket = secure_transport_socket
diff --git a/src/duppy_ssl.ml b/src/duppy_ssl.ml
new file mode 100644
index 0000000..d087677
--- /dev/null
+++ b/src/duppy_ssl.ml
@@ -0,0 +1,13 @@
+module Ssl_transport : Duppy.Transport_t with type t = Ssl.socket =
+struct
+  type t = Ssl.socket
+  type bigarray = (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t
+  let sock = Ssl.file_descr_of_socket
+  let read = Ssl.read
+  let write = Ssl.write
+  let ba_write _ _ _ _ =
+    failwith "Not implemented!"
+end
+
+module Io = Duppy.MakeIo(Ssl_transport)
+module Monad_io = Duppy.Monad.MakeIo(Io)
diff --git a/src/duppy_ssl.mli b/src/duppy_ssl.mli
new file mode 100644
index 0000000..b417a0e
--- /dev/null
+++ b/src/duppy_ssl.mli
@@ -0,0 +1,2 @@
+module Io : Duppy.Io_t with type socket = Ssl.socket
+module Monad_io : Duppy.Monad.Monad_io_t with type socket = Ssl.socket
diff --git a/src/duppy_stubs.c b/src/duppy_stubs.c
new file mode 100644
index 0000000..ac70284
--- /dev/null
+++ b/src/duppy_stubs.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright 2010 Savonet team
+ *
+ * This file is part of Ocaml-duppy.
+ *
+ * Ocaml-duppy is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Ocaml-duppy is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Ocaml-duppy; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <caml/alloc.h>
+#include <caml/signals.h>
+#include <caml/unixsupport.h>
+#include <caml/memory.h>
+#include <caml/bigarray.h>
+#include <caml/fail.h>
+#include <caml/threads.h>
+
+#include <errno.h>
+
+/* On native Windows platforms, many macros are not defined.  */ 
+# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ 
+
+#ifndef EWOULDBLOCK 
+#define EWOULDBLOCK     EAGAIN 
+#endif 
+
+#endif
+
+#ifdef WIN32
+#define Fd_val(fd) win_CRT_fd_of_filedescr(fd)
+#define Val_fd(fd) caml_failwith("Val_fd")
+#else
+#define Fd_val(fd) Int_val(fd)
+#define Val_fd(fd) Val_int(fd)
+#endif
+
+#ifndef WIN32
+#include <poll.h>
+
+CAMLprim value caml_poll(value _read, value _write, value _err, value _timeout) { 
+  CAMLparam3(_read, _write, _err);
+  CAMLlocal4(_pread, _pwrite, _perr, _ret);
+
+  struct pollfd *fds;
+  nfds_t nfds = 0;
+  nfds_t nread = 0;
+  nfds_t nwrite = 0;
+  nfds_t nerr = 0;
+  int timeout;
+  size_t last = 0;
+  int n, ret;
+
+  if (Double_val(_timeout) == -1)
+    timeout = -1;
+  else
+    timeout = Double_val(_timeout) * 1000;
+
+  nfds += Wosize_val(_read);
+  nfds += Wosize_val(_write);
+  nfds += Wosize_val(_err);
+
+  fds = calloc(nfds,sizeof(struct pollfd));
+  if (fds == NULL) caml_raise_out_of_memory();
+
+  for (n = 0; n < Wosize_val(_read); n++) {
+    fds[last+n].fd = Fd_val(Field(_read,n));
+    fds[last+n].events = POLLIN;
+  }
+  last += Wosize_val(_read);
+
+  for (n = 0; n < Wosize_val(_write); n++) {
+    fds[last+n].fd = Fd_val(Field(_write,n));
+    fds[last+n].events = POLLOUT;
+  }
+  last += Wosize_val(_write);
+
+  for (n = 0; n < Wosize_val(_err); n++) {
+    fds[last+n].fd = Fd_val(Field(_err,n));
+    fds[last+n].events = POLLERR;
+  }
+  
+  caml_release_runtime_system();
+  ret = poll(fds, nfds, timeout);
+  caml_acquire_runtime_system();
+
+  if (ret == -1) {
+    free(fds);
+    uerror("poll",Nothing);
+  }
+
+  for (n = 0; n < nfds; n++) {
+    if (fds[n].revents & POLLIN)
+      nread++;
+    if (fds[n].revents & POLLOUT)
+      nwrite++;
+    if (fds[n].revents & POLLERR)
+      nerr++;
+  }
+
+  _pread = caml_alloc_tuple(nread);
+  nread = 0;
+
+  _pwrite = caml_alloc_tuple(nwrite);
+  nwrite = 0;
+
+  _perr = caml_alloc_tuple(nerr);
+  nerr = 0;
+
+  for (n = 0; n < nfds; n++) {
+    if (fds[n].revents & POLLIN) {
+      Store_field(_pread, nread, Val_fd(fds[n].fd));
+      nread++;
+    }
+    if (fds[n].revents & POLLOUT) {
+      Store_field(_pwrite, nwrite, Val_fd(fds[n].fd));
+      nwrite++;
+    }
+    if (fds[n].revents & POLLERR) {
+      Store_field(_pread, nerr, Val_fd(fds[n].fd));
+      nerr++;
+    }
+  }
+
+  free(fds);
+
+  _ret = caml_alloc_tuple(3);
+  Store_field(_ret, 0, _pread);
+  Store_field(_ret, 1, _pwrite);
+  Store_field(_ret, 2, _perr);
+
+  CAMLreturn(_ret);
+}
+#else
+CAMLprim value caml_poll(value _read, value _write, value _err, value _timeout) {
+  caml_failwith("caml_poll");
+}
+#endif
+
+CAMLprim value ocaml_duppy_write_ba(value _fd, value ba, value _ofs, value _len)
+{
+  CAMLparam2(ba,_fd) ;
+  int fd = Fd_val(_fd);
+  long ofs = Long_val(_ofs);
+  long len = Long_val(_len);
+  void *buf = Caml_ba_data_val(ba);
+  int ret;
+
+  int written = 0;
+  while (len > 0) {
+    caml_enter_blocking_section();
+    ret = write(fd, buf+ofs, len);
+    caml_leave_blocking_section();
+    if (ret == -1) {
+      if ((errno == EAGAIN || errno == EWOULDBLOCK) && written > 0) break;
+      uerror("write", Nothing);
+    }
+    written += ret;
+    ofs += ret;
+    len -= ret;
+  }
+
+  CAMLreturn(Val_long(written));
+}
+