$NetBSD: patch-ak,v 1.4 2015/12/29 23:34:46 dholland Exp $

Use standard headers.

--- src/sysdep.c.orig	2009-12-22 11:45:47.000000000 +0100
+++ src/sysdep.c
@@ -80,8 +80,8 @@ extern "C" {
 #define Cextern extern
 #endif
 
-Cextern int unlink Argdcl((const char *));
-Cextern int fork Argdcl((void)), getpid Argdcl((void)), wait Argdcl((int*));
+#include <sys/wait.h>
+#include <unistd.h>
 
  void
 #ifdef KR_headers