--- gcc/flags.h.orig	Sat Feb 27 10:33:03 1999
+++ gcc/flags.h	Tue Mar 30 03:36:49 1999
@@ -449,6 +449,9 @@
 
 /* Do the full regmove optimization pass.  */
 extern int flag_regmove;
+
+/* Nonzero means that -Wformat accepts certain non-ANSI formats.  */
+extern int flag_format_extensions;
 
 /* Other basic status info about current function.  */