Updating SDL_gfx, as it should fix a memory corruption:

http://yellowgrass.org/issue/Nixpkgs/108
https://gna.org/bugs/?17768


svn path=/nixpkgs/trunk/; revision=26163

pkgs/development/libraries/SDL_gfx/default.nix

@@ -1,11 +1,11 @@
 {stdenv, fetchurl, SDL} :
 
 stdenv.mkDerivation rec {
-  name = "SDL_gfx-2.0.20";
+  name = "SDL_gfx-2.0.22";
 
   src = fetchurl {
     url = "http://www.ferzkopp.net/Software/SDL_gfx-2.0/${name}.tar.gz";
-    sha256 = "0dyc1sj0ymv2ghmlgwfb2c6r07scbgmi2dfhmnddsb27y8wjqz4q";
+    sha256 = "1w1bdpyypvqg1nmbjwkqnjhmngvpjmhc0zanwgq7z4pxffzffx8m";
   };
 
   buildInputs = [ SDL ] ;