diff options
Diffstat (limited to 'mcon/U/d_sgndchr.U')
-rw-r--r-- | mcon/U/d_sgndchr.U | 39 |
1 files changed, 15 insertions, 24 deletions
diff --git a/mcon/U/d_sgndchr.U b/mcon/U/d_sgndchr.U index 95ec164..3221ff6 100644 --- a/mcon/U/d_sgndchr.U +++ b/mcon/U/d_sgndchr.U @@ -1,11 +1,11 @@ -?RCS: $Id: d_sgndchr.U 1 2006-08-24 12:32:52Z rmanfredi $ +?RCS: $Id: d_sgndchr.U 167 2013-05-08 17:58:00Z rmanfredi $ ?RCS: ?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi ?RCS: -?RCS: You may redistribute only under the terms of the Artistic Licence, +?RCS: You may redistribute only under the terms of the Artistic License, ?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: that same Artistic License; a copy of which may be found at the root ?RCS: of the source tree for dist 4.0. ?RCS: ?RCS: $Log: d_sgndchr.U,v $ @@ -18,7 +18,7 @@ ?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:d_sgndchr: Trylink cat ?MAKE: -pick add $@ %< ?S:d_sgndchr: ?S: This variable conditionally defines the SIGNEDCHAR symbol, which @@ -31,29 +31,20 @@ ?C:. ?H:#$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 -$cat >try.c <<'EOCP' -int main() +$cat >try.c <<EOC +int main(void) { - char c = 0; - - c--; - exit(c >= 0); + switch (1) { + case 0: + case ((char) -1 < 0): + break; + } + return 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 +EOC +cyn="whether your C compiler can do signed chars" set d_sgndchr -eval $setvar -$rm -f try* +eval $trylink |