64bit time_t

Index: backend/apple.c
--- backend/apple.c.orig
+++ backend/apple.c
@@ -310,8 +310,8 @@ return SANE_STATUS_GOOD;
 	  gettimeofday (&now, 0);
 	  if (now.tv_sec - start.tv_sec >= MAX_WAITING_TIME)
 	    {
-	      DBG (ERROR_MESSAGE, "wait_ready: timed out after %lu seconds\n",
-		   (u_long) now.tv_sec - start.tv_sec);
+	      DBG (ERROR_MESSAGE, "wait_ready: timed out after %lld seconds\n",
+		   (int64_t) now.tv_sec - start.tv_sec);
 	      return SANE_STATUS_INVAL;
 	    }
 	  usleep (100000);	/* retry after 100ms */
