Initial import of upstream branch

Initial import of upstream branch


git-archimport-id: srivasta@debian.org--2003-primary/dist--upstream--3.70--base-0

1 files changed, 164 insertions, 0 deletions

diff --git a/mcon/U/i_varhdr.U b/mcon/U/i_varhdr.U
new file mode 100644
index 0000000..909724e
--- /dev/null
+++ b/mcon/U/i_varhdr.U
@@ -0,0 +1,164 @@
+?RCS: $Id: i_varhdr.U,v 3.0.1.3 1997/02/28 15:54:42 ram Exp $
+?RCS:
+?RCS: Copyright (c) 1991-1993, 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 3.0.
+?RCS:
+?RCS: $Log: i_varhdr.U,v $
+?RCS: Revision 3.0.1.3  1997/02/28  15:54:42  ram
+?RCS: patch61: varargs script now starts with leading "startsh"
+?RCS:
+?RCS: Revision 3.0.1.2  1994/10/29  16:21:02  ram
+?RCS: patch36: added ?F: line for metalint file checking
+?RCS:
+?RCS: Revision 3.0.1.1  1994/05/13  15:26:05  ram
+?RCS: patch27: this unit now supersedes old i_stdarg.U and i_varargs.U
+?RCS: patch27: modified to avoid spurious Whoa warnings (ADO)
+?RCS:
+?RCS: Revision 3.0  1993/08/18  12:08:49  ram
+?RCS: Baseline for dist 3.0 netwide release.
+?RCS:
+?MAKE:i_stdarg i_varargs i_varhdr: cat +cc +ccflags rm test Setvar \
+	Findhdr startsh _o
+?MAKE:	-pick add $@ %<
+?S:i_stdarg:
+?S:	This variable conditionally defines the I_STDARG symbol, which
+?S:	indicates to the C program that <stdarg.h> exists and should
+?S:	be included.
+?S:.
+?S:i_varargs:
+?S:	This variable conditionally defines I_VARARGS, which indicates
+?S:	to the C program that it should include <varargs.h>.
+?S:.
+?S:i_varhdr:
+?S:	Contains the name of the header to be included to get va_dcl definition.
+?S:	Typically one of varargs.h or stdarg.h.
+?S:.
+?C:I_STDARG:
+?C:	This symbol, if defined, indicates that <stdarg.h> exists and should
+?C:	be included.
+?C:.
+?C:I_VARARGS:
+?C:	This symbol, if defined, indicates to the C program that it should
+?C:	include <varargs.h>.
+?C:.
+?H:#$i_stdarg I_STDARG		/**/
+?H:#$i_varargs I_VARARGS	/**/
+?H:.
+?W:%<:va_dcl
+?F:!varargs
+?T:valstd
+?LINT:set i_stdarg i_varargs
+?X:
+?X: Don't use setvar because the varags test below might override these.
+?X: Actually, the messages here are just informative. We don't wish to set
+?X: i_varargs or i_stdarg to their final value before knowing which of the
+?X: two we'll include.
+?X:
+: see if stdarg is available
+echo " "
+if $test `./findhdr stdarg.h`; then
+	echo "<stdarg.h> found." >&4
+	valstd="$define"
+else
+	echo "<stdarg.h> NOT found." >&4
+	valstd="$undef"
+fi
+
+: see if varags is available
+echo " "
+if $test `./findhdr varargs.h`; then
+	echo "<varargs.h> found." >&4
+else
+	echo "<varargs.h> NOT found, but that's ok (I hope)." >&4
+fi
+
+?X:
+?X: if you have stdarg.h, you need to support prototypes to actually use it;
+?X: but if stdarg.h exists and the compiler doesn't support prototypes (for some
+?X: bizarre reason), we'll fall back to varargs.h anyway so it's not so bad.
+?X:
+: set up the varargs testing programs
+$cat > varargs.c <<EOP
+#ifdef I_STDARG
+#include <stdarg.h>
+#endif
+#ifdef I_VARARGS
+#include <varargs.h>
+#endif
+
+#ifdef I_STDARG
+int f(char *p, ...)
+#else
+int f(va_alist)
+va_dcl
+#endif
+{
+	va_list ap;
+#ifndef I_STDARG
+	char *p;
+#endif
+#ifdef I_STDARG
+	va_start(ap,p);
+#else
+	va_start(ap);
+	p = va_arg(ap, char *);
+#endif
+	va_end(ap);
+}
+EOP
+$cat > varargs <<EOP
+$startsh
+if $cc -c $ccflags -D\$1 varargs.c >/dev/null 2>&1; then
+	echo "true"
+else
+	echo "false"
+fi
+$rm -f varargs$_o
+EOP
+chmod +x varargs
+
+: now check which varargs header should be included
+echo " "
+i_varhdr=''
+case "$valstd" in
+"$define")
+	if `./varargs I_STDARG`; then
+		val='stdarg.h'
+	elif `./varargs I_VARARGS`; then
+		val='varargs.h'
+	fi
+	;;
+*)
+	if `./varargs I_VARARGS`; then
+		val='varargs.h'
+	fi
+	;;
+esac
+case "$val" in
+'')
+echo "I could not find the definition for va_dcl... You have problems..." >&4
+	val="$undef"; set i_stdarg; eval $setvar
+	val="$undef"; set i_varargs; eval $setvar
+	;;
+*) 
+	set i_varhdr
+	eval $setvar
+	case "$i_varhdr" in
+	stdarg.h)
+		val="$define"; set i_stdarg; eval $setvar
+		val="$undef"; set i_varargs; eval $setvar
+		;;
+	varargs.h)
+		val="$undef"; set i_stdarg; eval $setvar
+		val="$define"; set i_varargs; eval $setvar
+		;;
+	esac
+	echo "We'll include <$i_varhdr> to get va_dcl definition." >&4;;
+esac
+$rm -f varargs*
+