From 2d378775fcce9dfd765560340e22ff30bda74f4b Mon Sep 17 00:00:00 2001
From: Mike Sperber <sperber@deinprogramm.de>
Date: Thu, 16 Sep 2010 18:15:32 +0200
Subject: [PATCH] Unbreak compile for new libpng.

From: Mariusz Ceier <mceier@gmail.com>

http://lists.racket-lang.org/dev/archive/2010-September/004328.html
---
 src/wxcommon/wxJPEG.cxx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/wxcommon/wxJPEG.cxx b/src/wxcommon/wxJPEG.cxx
index 053a3ee440..a13d7601b7 100644
--- a/src/wxcommon/wxJPEG.cxx
+++ b/src/wxcommon/wxJPEG.cxx
@@ -726,7 +726,11 @@ int wx_read_png(char *file_name, wxBitmap *bm, int w_mask, wxColour *bg)
        png_set_strip_16(png_ptr);
 
      /* Expand grayscale images to the full 8 bits from 1, 2, or 4 bits/pixel */
+#if PNG_LIBPNG_VER >= 10400
+     png_set_expand_gray_1_2_4_to_8(png_ptr);
+#else
      png_set_gray_1_2_4_to_8(png_ptr);
+#endif
    }
 
    /* Set the background color to draw transparent and alpha images over.