$OpenBSD: patch-src_m_misc_c,v 1.1 2011/07/08 20:38:01 naddy Exp $

Fix build with png-1.5.

--- src/m_misc.c.orig	Wed Jul  6 12:26:31 2011
+++ src/m_misc.c	Wed Jul  6 12:26:57 2011
@@ -1041,7 +1041,7 @@ static void WritePNGfile(FILE* fp, const byte* data,
   png_infop info_ptr;
   boolean gl = !palette;
 
-  png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, png_error_ptr_NULL, error_fn, NULL);
+  png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, error_fn, NULL);
   png_set_compression_level(png_ptr, 2);
   if (png_ptr == NULL) { screenshot_write_error = true; return; }
   info_ptr = png_create_info_struct(png_ptr);
@@ -1067,7 +1067,7 @@ static void WritePNGfile(FILE* fp, const byte* data,
 
     png_write_end(png_ptr, info_ptr);
   }
-  png_destroy_write_struct(&png_ptr,  png_infopp_NULL);
+  png_destroy_write_struct(&png_ptr,  NULL);
 }
 
 #else /* HAVE_LIBPNG */
