$NetBSD$

Use standard headers.

--- pssubs.c~	2003-07-25 13:34:41.000000000 +0000
+++ pssubs.c
@@ -4,6 +4,7 @@
  *  See file jcabc2ps.c for details.
  */
 
+#include <string.h>
 #include <time.h>
 
 #include "jcabc2ps.h"
