--- a/utils.h	Sat Mar 30 22:29:42 2013 -0400
+++ b/utils.h	Sat Mar 30 22:33:53 2013 -0400
@@ -53,10 +53,10 @@
 bool is_identifier(const char *str);
 
 /* in place.c */
-void complain(const struct place *, const char *fmt, ...);
+void complain(const struct place *, const char *fmt, ...) __printflike(2, 3);
 void complain_fail(void);
 bool complain_failed(void);
 
 /* in main.c */
 void freestringlater(char *s);
-void die(void);
+__dead void die(void);