$NetBSD$

Use standard headers.

--- buffer.c~	2006-01-06 22:48:10.000000000 +0000
+++ buffer.c
@@ -4,6 +4,9 @@
  *  See file jcabc2ps.c for details.
  */
 
+#include <string.h>
+#include <stdlib.h>
+
 #include "jcabc2ps.h"
 #include "buffer.h"
 #include "pssubs.h"
