summaryrefslogtreecommitdiff
path: root/mcon/U/d_bsdjmp.U
diff options
context:
space:
mode:
Diffstat (limited to 'mcon/U/d_bsdjmp.U')
-rw-r--r--mcon/U/d_bsdjmp.U86
1 files changed, 86 insertions, 0 deletions
diff --git a/mcon/U/d_bsdjmp.U b/mcon/U/d_bsdjmp.U
new file mode 100644
index 0000000..61ed61c
--- /dev/null
+++ b/mcon/U/d_bsdjmp.U
@@ -0,0 +1,86 @@
+?RCS: $Id: d_bsdjmp.U,v 3.0.1.2 1997/02/28 15:31:10 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_bsdjmp.U,v $
+?RCS: Revision 3.0.1.2 1997/02/28 15:31:10 ram
+?RCS: patch61: added ?F: metalint hint
+?RCS:
+?RCS: Revision 3.0.1.1 1994/10/29 16:09:09 ram
+?RCS: patch36: call ./usg explicitely instead of relying on PATH
+?RCS:
+?RCS: Revision 3.0 1993/08/18 12:05:45 ram
+?RCS: Baseline for dist 3.0 netwide release.
+?RCS:
+?MAKE:d_bsdjmp: Guess Setvar cat +cc libs rm
+?MAKE: -pick add $@ %<
+?S:d_bsdjmp:
+?S: This variable conditionally defines USE_BSDJMP if BSD _setjmp and
+?S: _longjmp routines are available to do non-local gotos without saving
+?S: or restoring the signal mask flag.
+?S:.
+?C:USE_BSDJMP (BSDJMP):
+?C: This symbol, if defined, indicates that the BSD _setjmp and _longjmp
+?C: routines are available to do non-local gotos wihtout saving or restoring
+?C: the signal mask flag.
+?C:.
+?H:#$d_bsdjmp USE_BSDJMP /**/
+?H:.
+?F:!set
+?LINT:set d_bsdjmp
+: see if _setjmp and _longjmp exists
+?X: We can't check for these symbols with Inlibc because of the leading "_"
+echo " "
+case "$d_bsdjmp" in
+'')
+ $cat >set.c <<EOP
+#include <setjmp.h>
+jmp_buf env;
+int set = 1;
+main()
+{
+ if (_setjmp(env))
+ exit(set);
+ set = 0;
+ _longjmp(env, 1);
+ exit(1);
+}
+EOP
+ if $cc set.c -o set $libs >/dev/null 2>&1; then
+ if ./set >/dev/null 2>&1; then
+ echo "Good! You have BSD _setjmp and _longjmp routines." >&4
+ val="$define"
+ else
+ $cat <<EOM
+Uh-Oh! You have BSD _setjmp and _longjmp, but they do not work properly!!
+EOM
+ val="$undef"
+ fi
+ else
+ if ./usg; then
+ echo "You do not have _setjmp and _longjmp, but that's fine." >&4
+ else
+ cat <<EOM
+It sounds strange for a BSD system to miss _setjmp and _longjmp, but that's ok.
+EOM
+ fi
+ val="$undef"
+ fi
+ ;;
+*) val="$d_bsdjmp"
+ case "$d_bsdjmp" in
+ $define) echo "Good! You have BSD _setjmp and _longjmp routines." >&4;;
+ $undef) echo "You do not have _setjmp and _longjmp, but that's fine." >&4;;
+ esac
+ ;;
+esac
+set d_bsdjmp
+eval $setvar
+$rm -f set.c set
+