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Diffstat (limited to 'mcon/U/d_sgndchr.U')
| -rw-r--r-- | mcon/U/d_sgndchr.U | 59 |
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 3.0.1.2 1997/02/28 15:44:25 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: d_sgndchr.U,v $ +?RCS: Revision 3.0.1.2 1997/02/28 15:44:25 ram +?RCS: patch61: added a ?F: metalint hint +?RCS: +?RCS: Revision 3.0.1.1 1995/07/25 14:00:24 ram +?RCS: patch56: made cc and ccflags optional dependencies +?RCS: +?RCS: Revision 3.0 1993/08/18 12:07:16 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:d_sgndchr: cat rm +cc +ccflags Setvar +?MAKE: -pick add $@ %< +?S:d_sgndchr: +?S: This variable conditionally defines the SIGNEDCHAR symbol, which +?S: indicates to the C program that signed characters are available. +?S:. +?C:SIGNEDCHAR: +?C: This symbol, if defined, indicates that characters are a signed type. +?C: If not defined, things declared as signed characters (and that make +?C: use of negative values) should probably be declared as shorts instead. +?C:. +?H:#$d_sgndchr SIGNEDCHAR /**/ +?H:. +?F:!try +?LINT:set d_sgndchr +: check for signed chars +echo " " +echo "Checking to see if your C compiler can do signed chars..." >&4 +$cat >try.c <<'EOCP' +main() +{ + char c = 0; + + c--; + exit(c >= 0); +} +EOCP +$cc $ccflags -o try try.c +if ./try; then + val="$define" + echo "It certainly can." +else + val="$undef" + echo "It can't. I'll have to make some things type short." +fi +set d_sgndchr +eval $setvar +$rm -f try* + |