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2003-06-29  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/pthread/configure.in: Check for C cleanup handling in gcc.
This commit is contained in:
Ulrich Drepper 2003-06-29 23:01:49 +00:00
parent 5245d8a1fe
commit e479cc8e4c
3 changed files with 76 additions and 0 deletions
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4
nptl/ChangeLog
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@ -1,3 +1,7 @@
2003-06-29 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/configure.in: Check for C cleanup handling in gcc.
2003-06-27 Ulrich Drepper <drepper@redhat.com>
* tst-cancel4.c (tf_msgrcv): Use IPC_PRIVATE in msgget call.

57
nptl/sysdeps/pthread/configure vendored
View File

@ -59,4 +59,61 @@ if test $libc_cv_forced_unwind = yes; then
#define HAVE_FORCED_UNWIND 1
_ACEOF
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Werror -fexceptions"
echo "$as_me:$LINENO: checking for C cleanup handling" >&5
echo $ECHO_N "checking for C cleanup handling... $ECHO_C" >&6
if test "${libc_cv_c_cleanup+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <stdio.h>
void cl (void *a) { }
extern c (void);
int
main ()
{
int a __attribute__ ((cleanup (cl)));
puts ("test")
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
(eval $ac_link) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
libc_cv_c_cleanup=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
libc_cv_c_cleanup=no
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $libc_cv_c_cleanup" >&5
echo "${ECHO_T}$libc_cv_c_cleanup" >&6
CFLAGS="$old_CFLAGS"
if test $libc_cv_c_cleanup = no; then
{ { echo "$as_me:$LINENO: error: the compiler must support C cleanup handling" >&5
echo "$as_me: error: the compiler must support C cleanup handling" >&2;}
{ (exit 1); exit 1; }; }
fi
fi

15
nptl/sysdeps/pthread/configure.in
View File

@ -16,4 +16,19 @@ _Unwind_GetCFA (context)],
libc_cv_forced_unwind=yes, libc_cv_forced_unwind=no)])
if test $libc_cv_forced_unwind = yes; then
AC_DEFINE(HAVE_FORCED_UNWIND)
dnl Check for C cleanup handling.
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Werror -fexceptions"
AC_CACHE_CHECK([for C cleanup handling], libc_cv_c_cleanup, [dnl
AC_TRY_LINK([
#include <stdio.h>
void cl (void *a) { }
extern c (void);], [
int a __attribute__ ((cleanup (cl)));
puts ("test")],
libc_cv_c_cleanup=yes, libc_cv_c_cleanup=no)])
CFLAGS="$old_CFLAGS"
if test $libc_cv_c_cleanup = no; then
AC_MSG_ERROR([the compiler must support C cleanup handling])
fi
fi