$OpenBSD: patch-src_pilot-read-screenshot_c,v 1.1 2011/07/08 20:36:09 naddy Exp $

Fix build with png-1.5.

--- src/pilot-read-screenshot.c.orig	Thu Jun  4 07:26:19 2009
+++ src/pilot-read-screenshot.c	Mon Jul  4 15:50:37 2011
@@ -40,10 +40,6 @@
 
 #ifdef HAVE_PNG
 # include "png.h"
-# if (PNG_LIBPNG_VER < 10201)
-#  define png_voidp_NULL (png_voidp)NULL
-#  define png_error_ptr_NULL (png_error_ptr)NULL
-# endif
 #endif
 
 #define pi_mktag(c1,c2,c3,c4) (((c1)<<24)|((c2)<<16)|((c3)<<8)|(c4))
@@ -87,8 +83,8 @@ void write_png ( char *fname, struct ss_state *state )
 		gray_buf = malloc( state->w );
 
 	png_ptr = png_create_write_struct
-		(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
-		png_error_ptr_NULL, png_error_ptr_NULL);
+		(PNG_LIBPNG_VER_STRING, NULL,
+		NULL, NULL);
 
 	if (!png_ptr)
 		return;