* SUCH DAMAGE.
*/
-#ifdef VARIANT_CANCELABLE
-#undef __DARWIN_NON_CANCELABLE
-#define __DARWIN_NON_CANCELABLE 0
-#endif /* VARIANT_CANCELABLE */
+#if defined(VARIANT_CANCELABLE) && __DARWIN_NON_CANCELABLE != 0
+#error cancellable call vs. __DARWIN_NON_CANCELABLE mismatch
+#endif
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)sleep.c 8.1 (Berkeley) 6/4/93";