--- cproto-4.6/grammar.y.orig	Tue Jan 20 19:55:55 1998
+++ cproto-4.6/grammar.y	Mon Aug 13 18:39:07 2001
@@ -835,6 +835,7 @@
 	"__const__",    "__const",
 	"__volatile__", "__volatile",
 	"__inline__",   "__inline",
+	"__builtin_va_list",
 #endif
     };
     int i;