commit 2c34815099762e7a4845dbade6a75a57f70e3b59
parent f08474ea0c5d4ad9266081d5f3dd0017448d2498
Author: tgoodwin <tgoodwin>
Date: Thu, 19 Feb 1998 13:23:17 +0000
actually test for sigsetjmp (not setjmp), bozo
nasty sed hack to handle \\ paths under CygWin32
Diffstat:
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/configure.ac b/configure.ac
@@ -27,12 +27,14 @@ dnl Most systems put the real signal names in /usr/include/sys/signal.h.
dnl Linux puts them in /usr/include/asm/signal.h. CygWin32 puts them
dnl somewhere else altogether. This hack attempts to parse the output
dnl of saying `#include <signal.h>' to the preprocessor in order to find
-dnl the full path of files named signal.h. If this doesn't
-dnl produce any filenames, fall back to the (Unixoid) defaults.
+dnl the full path of files named signal.h. The first sed substitution
+dnl handles paths on CygWin32, and is a good example of why rc's quoting
+dnl rules are superior to sh's. If this process doesn't produce any
+dnl filenames, fall back to the (Unixoid) defaults.
AC_CACHE_CHECK(for full paths of <signal.h>, rc_cv_full_signal_h, [
echo '#include <signal.h>' > temp.c
- rc_cv_full_signal_h=`$CPP temp.c |sed -n 's/.*"\(.*signal.h\)".*/\1/p' |
+ rc_cv_full_signal_h=`$CPP temp.c |sed -n 's/\\\\\\\\/\\\\/g;s/.*"\(.*signal.h\)".*/\1/p' |
sort -u |tr '
' ' '`
rm -f temp.c
@@ -73,8 +75,8 @@ AC_CACHE_CHECK(for sigsetjmp, rc_cv_sigsetjmp,
AC_TRY_LINK([
#include <setjmp.h>
], [
-jmp_buf e;
-setjmp(e);
+sigjmp_buf e;
+sigsetjmp(e, 1);
], rc_cv_sigsetjmp=yes, rc_cv_sigsetjmp=no))
case "$rc_cv_sigsetjmp" in
yes) AC_DEFINE(HAVE_SIGSETJMP) ;;
