$OpenBSD: patch-lib_path-concat_c,v 1.1 2009/01/07 17:51:16 jasper Exp $
--- lib/path-concat.c.orig	Wed Jan  7 18:27:53 2009
+++ lib/path-concat.c	Wed Jan  7 18:28:12 2009
@@ -31,6 +31,8 @@
 #endif
 #include <sys/types.h>
 
+#include <stdlib.h>
+
 /* char *malloc (); */
 
 #ifndef DIRECTORY_SEPARATOR