https://perl5.git.perl.org / metaconfig.git / blame
| Commit | Line | Data |
|---|---|---|
| d8875586 MBT |
1 | ?RCS: $Id: d_sgndchr.U 1 2006-08-24 12:32:52Z rmanfredi $ |
| 2 | ?RCS: | |
| 3 | ?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi | |
| 4 | ?RCS: | |
| 5 | ?RCS: You may redistribute only under the terms of the Artistic Licence, | |
| 6 | ?RCS: as specified in the README file that comes with the distribution. | |
| 7 | ?RCS: You may reuse parts of this distribution only within the terms of | |
| 8 | ?RCS: that same Artistic Licence; a copy of which may be found at the root | |
| 9 | ?RCS: of the source tree for dist 4.0. | |
| 10 | ?RCS: | |
| 11 | ?RCS: $Log: d_sgndchr.U,v $ | |
| 12 | ?RCS: Revision 3.0.1.2 1997/02/28 15:44:25 ram | |
| 13 | ?RCS: patch61: added a ?F: metalint hint | |
| 14 | ?RCS: | |
| 15 | ?RCS: Revision 3.0.1.1 1995/07/25 14:00:24 ram | |
| 16 | ?RCS: patch56: made cc and ccflags optional dependencies | |
| 17 | ?RCS: | |
| 18 | ?RCS: Revision 3.0 1993/08/18 12:07:16 ram | |
| 19 | ?RCS: Baseline for dist 3.0 netwide release. | |
| 20 | ?RCS: | |
| 21 | ?MAKE:d_sgndchr: cat rm +cc +ccflags Setvar | |
| 22 | ?MAKE: -pick add $@ %< | |
| 23 | ?S:d_sgndchr: | |
| 24 | ?S: This variable conditionally defines the SIGNEDCHAR symbol, which | |
| 25 | ?S: indicates to the C program that signed characters are available. | |
| 26 | ?S:. | |
| 27 | ?C:SIGNEDCHAR: | |
| 28 | ?C: This symbol, if defined, indicates that characters are a signed type. | |
| 29 | ?C: If not defined, things declared as signed characters (and that make | |
| 30 | ?C: use of negative values) should probably be declared as shorts instead. | |
| 31 | ?C:. | |
| 32 | ?H:#$d_sgndchr SIGNEDCHAR /**/ | |
| 33 | ?H:. | |
| 34 | ?F:!try | |
| 35 | ?LINT:set d_sgndchr | |
| 36 | : check for signed chars | |
| 37 | echo " " | |
| 38 | echo "Checking to see if your C compiler can do signed chars..." >&4 | |
| 39 | $cat >try.c <<'EOCP' | |
| 40 | int main() | |
| 41 | { | |
| 42 | char c = 0; | |
| 43 | ||
| 44 | c--; | |
| 45 | exit(c >= 0); | |
| 46 | } | |
| 47 | EOCP | |
| 48 | $cc $ccflags -o try try.c | |
| 49 | if ./try; then | |
| 50 | val="$define" | |
| 51 | echo "It certainly can." | |
| 52 | else | |
| 53 | val="$undef" | |
| 54 | echo "It can't. I'll have to make some things type short." | |
| 55 | fi | |
| 56 | set d_sgndchr | |
| 57 | eval $setvar | |
| 58 | $rm -f try* | |
| 59 |