--- unproto/tok_io.c.orig 2012-07-22 15:06:47.000000000 +0200
+++ unproto/tok_io.c 2012-07-22 15:08:08.000000000 +0200
@@ -189,7 +189,7 @@
/* do_control - parse control line */
-static int do_control()
+static void do_control()
{
struct token *t;
int line;