Index: flag.c
===================================================================
--- flag.c	(revision 4541)
+++ flag.c	(revision 4542)
@@ -26,6 +26,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include "config.h"
 #include "flag.h"
 
 /* This just fills in a FlagType with current flags.  */