From 0e57f0c510b7d7eb688695359048a1f0a585e26a Mon Sep 17 00:00:00 2001
From: rmanfredi <rmanfredi@2592e710-e01b-42a5-8df0-11608a6cc53d>
Date: Thu, 24 Aug 2006 12:32:52 +0000
Subject: Moving project to sourceforge.

git-svn-id: svn://svn.code.sf.net/p/dist/code/trunk/dist@1 2592e710-e01b-42a5-8df0-11608a6cc53d
---
 mcon/U/Checkcc.U | 135 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 mcon/U/Checkcc.U

(limited to 'mcon/U/Checkcc.U')

diff --git a/mcon/U/Checkcc.U b/mcon/U/Checkcc.U
new file mode 100644
index 0000000..ac1b513
--- /dev/null
+++ b/mcon/U/Checkcc.U
@@ -0,0 +1,135 @@
+?RCS: $Id$
+?RCS:
+?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
+?RCS: 
+?RCS: You may redistribute only under the terms of the Artistic Licence,
+?RCS: as specified in the README file that comes with the distribution.
+?RCS: You may reuse parts of this distribution only within the terms of
+?RCS: that same Artistic Licence; a copy of which may be found at the root
+?RCS: of the source tree for dist 4.0.
+?RCS:
+?RCS: Copyright (c) 2000, Jarkko Hietaniemi
+?RCS: 
+?X: 
+?X: This unit produces a bit of shell code that must be dotted in order
+?X: to make quick check on whether the current C compiler is working.
+?X:	
+?MAKE:Checkcc ccname ccversion: Myread Warn startsh cat contains test
+?MAKE:	-pick add $@ %<
+?S:ccname:
+?S:	This can set either by hints files or by Configure.  If using
+?S:	gcc, this is gcc, and if not, usually equal to cc, unimpressive, no?
+?S:	Some platforms, however, make good use of this by storing the
+?S:	flavor of the C compiler being used here.  For example if using
+?S:	the Sun WorkShop suite, ccname will be 'workshop'.
+?S:.
+?S:ccversion:
+?S:	This can set either by hints files or by Configure.  If using
+?S:	a (non-gcc) vendor cc, this variable may contain a version for
+?S:	the compiler.
+?S:.
+?F:./checkcc ./trygcc !checktmp
+?V:despair
+?T:trygcc
+?LINT:extern cc rm ccflags ldflags
+?LINT:change cc ccflags
+?LINT:usefile checktmp
+?INIT:ccname=''
+?INIT:ccversion=''
+: generate the trygcc script for later perusal
+cat <<EOS >trygcc
+$startsh
+EOS
+cat <<'EOSC' >>trygcc
+case "$cc" in
+'') ;;
+*)  $rm -f try try.*
+    $cat >try.c <<EOM
+int main(int argc, char *argv[]) {
+  (void) argc;
+  (void) argv;
+  return 0;
+}
+EOM
+    if $cc -o try $ccflags $ldflags try.c; then
+       :
+    else
+        echo "Uh-oh, the C compiler '$cc' doesn't seem to be working." >&4
+        despair=yes
+        trygcc=yes
+        case "$cc" in
+        *gcc*) trygcc=no ;;
+        esac
+        case "`$cc -v -c try.c 2>&1`" in
+        *gcc*) trygcc=no ;;
+        esac
+        if $test X"$trygcc" = Xyes; then
+            if gcc -o try -c try.c; then
+                echo " "
+                echo "You seem to have a working gcc, though." >&4
+                rp="Would you like to use it?"
+                dflt=y
+                if $test -f myread; then
+                    . ./myread
+                else
+                    if $test -f UU/myread; then
+                        . ./UU/myread
+                    else
+                        echo "Cannot find myread, sorry.  Aborting." >&2
+                        exit 1
+                    fi
+                fi  
+                case "$ans" in
+                [yY]*) cc=gcc; ccname=gcc; ccflags=''; despair=no;
+?X: Look whether we have 'call-back units' generated by hints that would
+?X: seemingly affect the compiling environment.
+                       $cat *.cbu >checktmp 2>/dev/null
+                       if $contains ccflags checktmp >/dev/null; then
+                           ./warn <<EOM 
+Any previous setting of the C compiler flags has been lost.
+It may be necessary to pass -Dcc=gcc to Configure right away.
+EOM
+                       fi;;
+                esac
+            fi
+        fi
+    fi
+    $rm -f try try.*
+    ;;
+esac
+EOSC
+
+: generate the checkcc script for later perusal
+cat <<EOS >checkcc
+$startsh
+EOS
+cat <<'EOSC' >>checkcc
+case "$cc" in        
+'') ;;
+*)  $rm -f try try.*              
+    $cat >try.c <<EOM
+int main(int argc, char *argv[]) {
+  (void) argc;
+  (void) argv;
+  return 0;
+}
+EOM
+    if $cc -o try $ccflags $ldflags try.c; then
+       :
+    else
+        if $test X"$despair" = Xyes; then
+           echo "Uh-oh, the C compiler '$cc' doesn't seem to be working." >&4
+        fi
+        $cat >&4 <<EOM         
+You need to find a working C compiler.
+Either (purchase and) install the C compiler supplied by your OS vendor,
+or for a free C compiler try http://gcc.gnu.org/
+I cannot continue any further, aborting.
+EOM
+        exit 1
+    fi
+    $rm -f try try.*
+    ;;
+esac
+EOSC
+
-- 
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