--- Libc/Libc-391.5.21/stdtime/timezone_unix03.c
+++ Libc/Libc-1583.40.7/stdtime/timezone_unix03.c
@@ -21,8 +21,6 @@
  * @APPLE_LICENSE_HEADER_END@
  */
  
-#undef __DARWIN_UNIX03
-#define __DARWIN_UNIX03	1
 #include <time.h>
 
 long timezone = 0;