--- test.c
+++ test.c	2012-03-06 11:14:00.149934027 +0000
@@ -309,8 +309,17 @@ filecomp (s, t, op)
   
   switch (op)
     {
+#if defined(_BSD_SOURCE) || defined(_SVID_SOURCE) || (defined(_XOPEN_SOURCE) && ((_XOPEN_SOURCE - 0) >= 700)) || (defined(_POSIX_C_SOURCE) && ((_POSIX_C_SOURCE - 0) >= 200809L))
+# define st_mtimcmp(t1, t2, CMP)		    \
+	(((t1).st_mtim.tv_sec == (t2).st_mtim.tv_sec) ?	    \
+	    ((t1).st_mtim.tv_nsec CMP (t2).st_mtim.tv_nsec) :	    \
+	    ((t1).st_mtim.tv_sec  CMP (t2).st_mtim.tv_sec))
+    case OT: return (r1 < r2 || (r2 == 0 && st_mtimcmp(st1, st2, <)));
+    case NT: return (r1 > r2 || (r1 == 0 && st_mtimcmp(st1, st2, >)));
+#else
     case OT: return (r1 < r2 || (r2 == 0 && st1.st_mtime < st2.st_mtime));
     case NT: return (r1 > r2 || (r1 == 0 && st1.st_mtime > st2.st_mtime));
+#endif
     case EF: return (same_file (s, t, &st1, &st2));
     }
   return (FALSE);