Add package: SDL_stretch-0.3.1

Added in preparation for 3dfsb.

pkgs/development/libraries/SDL_stretch/default.nix

···
+{ stdenv, fetchurl, SDL }:
+
+stdenv.mkDerivation {
+  name = "SDL_stretch-0.3.1";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/sdl-stretch/0.3.1/SDL_stretch-0.3.1.tar.bz2";
+    sha256 = "1mzw68sn4yxbp8429jg2h23h8xw2qjid51z1f5pdsghcn3x0pgvw";
+  };
+
+  buildInputs = [ SDL ];
+
+  meta = {
+     description = "Stretch Functions For SDL";
+     homepage = "http://sdl-stretch.sourceforge.net/";
+     license = stdenv.lib.licenses.lgpl2;
+     platforms = stdenv.lib.platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

···
 
   SDL_sound = callPackage ../development/libraries/SDL_sound { };
 
+  SDL_stretch= callPackage ../development/libraries/SDL_stretch { };
+
   SDL_ttf = callPackage ../development/libraries/SDL_ttf { };
 
   SDL2 = callPackage ../development/libraries/SDL2 {