path: root/mcon/U/d_sgndchr.U
diff options
Diffstat (limited to 'mcon/U/d_sgndchr.U')
1 files changed, 59 insertions, 0 deletions
diff --git a/mcon/U/d_sgndchr.U b/mcon/U/d_sgndchr.U
new file mode 100644
index 0000000..1aca3dd
--- /dev/null
+++ b/mcon/U/d_sgndchr.U
@@ -0,0 +1,59 @@
+?RCS: $Id: d_sgndchr.U,v 1997/02/28 15:44:25 ram Exp $
+?RCS: Copyright (c) 1991-1993, Raphael Manfredi
+?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: $Log: d_sgndchr.U,v $
+?RCS: Revision 1997/02/28 15:44:25 ram
+?RCS: patch61: added a ?F: metalint hint
+?RCS: Revision 1995/07/25 14:00:24 ram
+?RCS: patch56: made cc and ccflags optional dependencies
+?RCS: Revision 3.0 1993/08/18 12:07:16 ram
+?RCS: Baseline for dist 3.0 netwide release.
+?MAKE:d_sgndchr: cat rm +cc +ccflags Setvar
+?MAKE: -pick add $@ %<
+?S: This variable conditionally defines the SIGNEDCHAR symbol, which
+?S: indicates to the C program that signed characters are available.
+?C: This symbol, if defined, indicates that characters are a signed type.
+?C: If not defined, things declared as signed characters (and that make
+?C: use of negative values) should probably be declared as shorts instead.
+?H:#$d_sgndchr SIGNEDCHAR /**/
+?LINT:set d_sgndchr
+: check for signed chars
+echo " "
+echo "Checking to see if your C compiler can do signed chars..." >&4
+$cat >try.c <<'EOCP'
+ char c = 0;
+ c--;
+ exit(c >= 0);
+$cc $ccflags -o try try.c
+if ./try; then
+ val="$define"
+ echo "It certainly can."
+ val="$undef"
+ echo "It can't. I'll have to make some things type short."
+set d_sgndchr
+eval $setvar
+$rm -f try*