diff --git a/graphics/sng/files/patch-sngd.c b/graphics/sng/files/patch-sngd.c
new file mode 100644
index 000000000000..d6259018e75d
--- /dev/null
+++ b/graphics/sng/files/patch-sngd.c
@@ -0,0 +1,25 @@
+--- sngd.c.orig	2003-11-15 20:25:10.000000000 +0100
++++ sngd.c	2010-03-29 16:10:17.000000000 +0200
+@@ -793,17 +793,17 @@
+ 	fprintf(fpout, "tRNS {\n");
+ 	switch (info_ptr->color_type) {
+ 	case PNG_COLOR_TYPE_GRAY:
+-	    fprintf(fpout, "    gray: %u;\n", info_ptr->trans_values.gray);
++	    fprintf(fpout, "    gray: %u;\n", info_ptr->trans_color.gray);
+ 	    break;
+ 	case PNG_COLOR_TYPE_RGB:
+ 	    fprintf(fpout, "    red: %u; green: %u; blue: %u;\n",
+-		    info_ptr->trans_values.red,
+-		    info_ptr->trans_values.green,
+-		    info_ptr->trans_values.blue);
++		    info_ptr->trans_color.red,
++		    info_ptr->trans_color.green,
++		    info_ptr->trans_color.blue);
+ 	    break;
+ 	case PNG_COLOR_TYPE_PALETTE:
+ 	    for (i = 0; i < info_ptr->num_trans; i++)
+-		fprintf(fpout, " %u", info_ptr->trans[i]);
++		fprintf(fpout, " %u", info_ptr->trans_alpha[i]);
+ 	    break;
+ 	case PNG_COLOR_TYPE_GRAY_ALPHA:
+ 	case PNG_COLOR_TYPE_RGB_ALPHA: