diff --git a/src/common/h-system.h b/src/common/h-system.h
index f60bbc1..0294dd3 100644
--- a/common/h-system.h
+++ a/common/h-system.h
@@ -104,17 +104,6 @@
 
 #ifdef SET_UID
 
-# ifdef USG
-#  include <string.h>
-# else
-#  include <strings.h>
-extern char *strstr();
-extern char *strchr();
-extern char *strrchr();
-# endif
-
-#else
-
 # include <string.h>
 
 #endif