https://perl5.git.perl.org / metaconfig.git / blame
| Commit | Line | Data |
|---|---|---|
| d8875586 MBT |
1 | ?RCS: $Id: d_bsdjmp.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_bsdjmp.U,v $ | |
| 12 | ?RCS: Revision 3.0.1.2 1997/02/28 15:31:10 ram | |
| 13 | ?RCS: patch61: added ?F: metalint hint | |
| 14 | ?RCS: | |
| 15 | ?RCS: Revision 3.0.1.1 1994/10/29 16:09:09 ram | |
| 16 | ?RCS: patch36: call ./usg explicitly instead of relying on PATH | |
| 17 | ?RCS: | |
| 18 | ?RCS: Revision 3.0 1993/08/18 12:05:45 ram | |
| 19 | ?RCS: Baseline for dist 3.0 netwide release. | |
| 20 | ?RCS: | |
| 21 | ?MAKE:d_bsdjmp: Guess Setvar cat +cc libs rm | |
| 22 | ?MAKE: -pick add $@ %< | |
| 23 | ?S:d_bsdjmp: | |
| 24 | ?S: This variable conditionally defines USE_BSDJMP if BSD _setjmp and | |
| 25 | ?S: _longjmp routines are available to do non-local gotos without saving | |
| 26 | ?S: or restoring the signal mask flag. | |
| 27 | ?S:. | |
| 28 | ?C:USE_BSDJMP (BSDJMP): | |
| 29 | ?C: This symbol, if defined, indicates that the BSD _setjmp and _longjmp | |
| 30 | ?C: routines are available to do non-local gotos wihtout saving or restoring | |
| 31 | ?C: the signal mask flag. | |
| 32 | ?C:. | |
| 33 | ?H:#$d_bsdjmp USE_BSDJMP /**/ | |
| 34 | ?H:. | |
| 35 | ?F:!set | |
| 36 | ?LINT:set d_bsdjmp | |
| 37 | : see if _setjmp and _longjmp exists | |
| 38 | ?X: We can't check for these symbols with Inlibc because of the leading "_" | |
| 39 | echo " " | |
| 40 | case "$d_bsdjmp" in | |
| 41 | '') | |
| 42 | $cat >set.c <<EOP | |
| 43 | #include <setjmp.h> | |
| 44 | jmp_buf env; | |
| 45 | int set = 1; | |
| 46 | int main() | |
| 47 | { | |
| 48 | if (_setjmp(env)) | |
| 49 | exit(set); | |
| 50 | set = 0; | |
| 51 | _longjmp(env, 1); | |
| 52 | exit(1); | |
| 53 | } | |
| 54 | EOP | |
| 55 | if $cc -o set set.c $libs >/dev/null 2>&1; then | |
| 56 | if ./set >/dev/null 2>&1; then | |
| 57 | echo "Good! You have BSD _setjmp and _longjmp routines." >&4 | |
| 58 | val="$define" | |
| 59 | else | |
| 60 | $cat <<EOM | |
| 61 | Uh-Oh! You have BSD _setjmp and _longjmp, but they do not work properly!! | |
| 62 | EOM | |
| 63 | val="$undef" | |
| 64 | fi | |
| 65 | else | |
| 66 | if ./usg; then | |
| 67 | echo "You do not have _setjmp and _longjmp, but that's fine." >&4 | |
| 68 | else | |
| 69 | cat <<EOM | |
| 70 | It sounds strange for a BSD system to miss _setjmp and _longjmp, but that's ok. | |
| 71 | EOM | |
| 72 | fi | |
| 73 | val="$undef" | |
| 74 | fi | |
| 75 | ;; | |
| 76 | *) val="$d_bsdjmp" | |
| 77 | case "$d_bsdjmp" in | |
| 78 | $define) echo "Good! You have BSD _setjmp and _longjmp routines." >&4;; | |
| 79 | $undef) echo "You do not have _setjmp and _longjmp, but that's fine." >&4;; | |
| 80 | esac | |
| 81 | ;; | |
| 82 | esac | |
| 83 | set d_bsdjmp | |
| 84 | eval $setvar | |
| 85 | $rm -f set.c set | |
| 86 |