$OpenBSD: patch-coders_png_c,v 1.4 2007/05/20 19:44:47 steven Exp $
--- coders/png.c.orig	Sat May  5 02:42:11 2007
+++ coders/png.c	Wed May 16 17:41:56 2007
@@ -1768,7 +1768,7 @@ static Image *ReadOnePNGImage(MngInfo *mng_info,
   png_set_read_user_chunk_fn(ping, image, read_vpag_chunk_callback);
 #endif
 
-#if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) && (PNG_LIBPNG_VER >= 10200) && defined(__i386__)
+#if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) && (PNG_LIBPNG_VER >= 10200) && defined(PNG_MMX_CODE_SUPPORTED)
   /* Disable thread-unsafe features of pnggccrd */
   if (png_access_version_number() >= 10200)
   {