diff --git a/editors/emacs-devel/files/patch-src-image.c b/editors/emacs-devel/files/patch-src-image.c
new file mode 100644
index 000000000000..c031bb012f30
--- /dev/null
+++ b/editors/emacs-devel/files/patch-src-image.c
@@ -0,0 +1,47 @@
+--- src/image.c.orig	2010-03-29 08:46:39.902587060 +0200
++++ src/image.c	2010-03-29 08:51:40.907908128 +0200
+@@ -5793,7 +5793,7 @@
+ /* PNG library details.  */
+ 
+ DEF_IMGLIB_FN (png_get_io_ptr);
+-DEF_IMGLIB_FN (png_check_sig);
++DEF_IMGLIB_FN (png_sig_cmp);
+ DEF_IMGLIB_FN (png_create_read_struct);
+ DEF_IMGLIB_FN (png_create_info_struct);
+ DEF_IMGLIB_FN (png_destroy_read_struct);
+@@ -5824,7 +5824,7 @@
+     return 0;
+ 
+   LOAD_IMGLIB_FN (library, png_get_io_ptr);
+-  LOAD_IMGLIB_FN (library, png_check_sig);
++  LOAD_IMGLIB_FN (library, png_sig_cmp);
+   LOAD_IMGLIB_FN (library, png_create_read_struct);
+   LOAD_IMGLIB_FN (library, png_create_info_struct);
+   LOAD_IMGLIB_FN (library, png_destroy_read_struct);
+@@ -5849,7 +5849,7 @@
+ #else
+ 
+ #define fn_png_get_io_ptr		png_get_io_ptr
+-#define fn_png_check_sig		png_check_sig
++#define fn_png_sig_cmp			png_sig_cmp
+ #define fn_png_create_read_struct	png_create_read_struct
+ #define fn_png_create_info_struct	png_create_info_struct
+ #define fn_png_destroy_read_struct	png_destroy_read_struct
+@@ -5996,7 +5996,7 @@
+ 
+       /* Check PNG signature.  */
+       if (fread (sig, 1, sizeof sig, fp) != sizeof sig
+-	  || !fn_png_check_sig (sig, sizeof sig))
++	  || !fn_png_sig_cmp (sig, 0, sizeof sig))
+ 	{
+ 	  image_error ("Not a PNG file: `%s'", file, Qnil);
+ 	  UNGCPRO;
+@@ -6013,7 +6013,7 @@
+ 
+       /* Check PNG signature.  */
+       if (tbr.len < sizeof sig
+-	  || !fn_png_check_sig (tbr.bytes, sizeof sig))
++	  || !fn_png_sig_cmp (tbr.bytes, 0, sizeof sig))
+ 	{
+ 	  image_error ("Not a PNG image: `%s'", img->spec, Qnil);
+ 	  UNGCPRO;