ObjFW  Diff

	])

	AS_IF([test x"$enable_seluid24" = x"yes"], [
		AC_DEFINE(OF_SELUID24, 1, [Whether to use 24 bit selector UIDs])
	])

	AC_MSG_CHECKING(for exception type)
	AC_COMPILE_IFELSE([
		AC_LANG_PROGRAM([
	AC_EGREP_CPP(egrep_cpp_yes, [
			extern void foo();
		], [
			@try {
		#ifdef __SEH__
		egrep_cpp_yes
				foo();
			} @finally {
		#endif
				foo();
			}
		])
	], [
		AS_IF([$SED 's/[[^[:print:]]]//g' <conftest.$ac_objext | \
		    $EGREP __gnu_objc_personality_v0 >/dev/null], [
			exception_type="DWARF"
		AC_MSG_RESULT(SEH)
		exception_type="SEH"
		])
		AS_IF([$SED 's/[[^[:print:]]]//g' <conftest.$ac_objext | \
		    $EGREP __gnu_objc_personality_sj0 >/dev/null], [
			exception_type="SjLj"
		])
		raise_exception="_Unwind_RaiseException"
	], [
		AS_IF([$SED 's/[[^[:print:]]]//g' <conftest.$ac_objext | \
		    $EGREP __gnu_objc_personality_seh0 >/dev/null], [
			exception_type="SEH"
		])

		case "$exception_type" in
		AC_EGREP_CPP(egrep_cpp_yes, [
			#ifdef __USING_SJLJ_EXCEPTIONS__
			egrep_cpp_yes
			#endif
		], [
			AC_MSG_RESULT(SjLj)
			exception_type="SjLj"
		DWARF)
			AC_DEFINE(HAVE_DWARF_EXCEPTIONS, 1,
				[Whether DWARF exceptions are used])
			raise_exception="_Unwind_RaiseException"
			;;
		SjLj)
			AC_DEFINE(HAVE_SJLJ_EXCEPTIONS, 1,
				[Whether SjLj exceptions are used])
			raise_exception="_Unwind_SjLj_RaiseException"
			;;
		SEH)
			AC_DEFINE(HAVE_SEH_EXCEPTIONS, 1,
				[Whether SEH exceptions are used])
			raise_exception="_Unwind_RaiseException"
			;;
		*)
			AC_MSG_RESULT(unknown)
			AC_MSG_ERROR([Exception type not detected!])
			;;
		esac

		AC_MSG_RESULT($exception_type)
	], [
		AC_MSG_RESULT(exceptions unavailable!)
		AC_MSG_ERROR([Exceptions not accepted by compiler!])
		], [
			AC_MSG_RESULT(DWARF)
			exception_type="DWARF"
			raise_exception="_Unwind_RaiseException"
		])
	])

	AC_SEARCH_LIBS($raise_exception, [c++abi gcc_s gcc unwind], [
		dnl c++abi requires pthread on OpenBSD
		AS_IF([test x"$ac_lib" = x"c++abi"], [LIBS="$LIBS -lpthread"])
	], [
		AC_MSG_ERROR([$raise_exception missing!])