From 213e5749947fad08d985eda8d06839efedda78ef Mon Sep 17 00:00:00 2001
From: Peter Seiderer <ps.report@gmx.net>
Date: Thu, 5 Mar 2015 21:42:52 +0100
Subject: [PATCH] Fix undefined symbol png_set_gray_1_2_4_to_8

Since libpng-1.4.0 the function png_set_gray_1_2_4_to_8() was
removed, the replacement function is called
png_set_expand_gray_1_2_4_to_8() (see [1]).

[1] http://libpng.sourceforge.net/ANNOUNCE-1.4.0.txt

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
 src/svg_image.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/svg_image.c b/src/svg_image.c
index cd8a95a..f256943 100755
--- a/src/svg_image.c
+++ b/src/svg_image.c
@@ -271,7 +271,7 @@ _svg_image_read_png (const char		*filename,
 
     /* expand gray bit depth if needed */
     if (color_type == PNG_COLOR_TYPE_GRAY && depth < 8)
-	png_set_gray_1_2_4_to_8 (png);
+	png_set_expand_gray_1_2_4_to_8 (png);
 
     /* transform transparency to alpha */
     if (png_get_valid(png, info, PNG_INFO_tRNS))
-- 
2.1.4