Index: contrib/flex/flex.skl
===================================================================
--- contrib/flex/flex.skl	(revision 20)
+++ contrib/flex/flex.skl	(working copy)
@@ -201,8 +201,6 @@
 #endif
 #include <sys/cdefs.h>
 #include <stdint.h>
-#else
-#define	__dead2
 #endif
 
 /* begin standard C headers. */
@@ -213,6 +211,11 @@
 #include <stdlib.h>
 %endif
 
+/* Define __dead2 if it hasn't been by now. */
+#ifndef __dead2
+#define	__dead2
+#endif
+
 %if-tables-serialization
 #include <sys/types.h>
 #include <netinet/in.h>