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# The sjlj test is almost duplicated here and in libgo/configure.ac (for C),
# libstdc++-v3/acinclude.m4 and libjava/configure.ac (for C++), and
# libobjc/configure.ac (for Objective-C).
# FIXME: This should be centralized in config/sjlj.m4.
# Check whether --enable-sjlj-exceptions was given.
if test "${enable_sjlj_exceptions+set}" = set; then :
  enableval=$enable_sjlj_exceptions; case "$enableval" in
   yes|no|auto) ;;
   *) as_fn_error "unknown argument to --enable-sjlj-exceptions" "$LINENO" 5 ;;
   esac
else
  enable_sjlj_exceptions=auto
fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to use setjmp/longjmp exceptions" >&5
$as_echo_n "checking whether to use setjmp/longjmp exceptions... " >&6; }
if test "${libgcc_cv_lib_sjlj_exceptions+set}" = set; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

void bar ();
void clean (int *);
void foo ()
{
  int i __attribute__ ((cleanup (clean)));
  bar();
}

_ACEOF
CFLAGS_hold=$CFLAGS
CFLAGS="--save-temps -fexceptions"
libgcc_cv_lib_sjlj_exceptions=unknown
if ac_fn_c_try_compile; then :
  if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then
    libgcc_cv_lib_sjlj_exceptions=yes
  elif grep _Unwind_Resume conftest.s >/dev/null 2>&1; then
    libgcc_cv_lib_sjlj_exceptions=no
  fi
fi
CFLAGS=$CFLAGS_hold
rm -f conftest*