ObjFW  Check-in [a079453537]

AX_CHECK_COMPILER_FLAGS(-Wshorten-64-to-32 -Werror,
	[OBJCFLAGS="$OBJCFLAGS -Wshorten-64-to-32"])
AX_CHECK_COMPILER_FLAGS(-Wsemicolon-before-method-body -Werror,
	[OBJCFLAGS="$OBJCFLAGS -Wsemicolon-before-method-body"])
AX_CHECK_COMPILER_FLAGS(-Wobjc-property-synthesis -Werror,
	[OBJCFLAGS="$OBJCFLAGS -Wobjc-property-synthesis"])

case "$OBJC" in
	*clang*)
		ASFLAGS="$ASFLAGS -no-integrated-as"
		;;
esac

AC_MSG_CHECKING(whether Objective C compiler supports properties)
AC_TRY_COMPILE([
	@interface Foo
	{
		id bar;
	}