Adding libvpx (the codec VP8). Still no package uses it.

svn path=/nixpkgs/trunk/; revision=21958

pkgs/development/libraries/libvpx/default.nix

@@ -0,0 +1,32 @@
+{stdenv, fetchurl, bash}:
+
+stdenv.mkDerivation rec {
+  name = "libvpx-0.9.0";
+  
+  src = fetchurl {
+    url = http://webm.googlecode.com/files/libvpx-0.9.0.tar.bz2;
+    sha256 = "1p5rl7r8zpw43n8i38wv73na8crkkakw16yx0v7n3ywwhp36l2d0";
+  };
+
+  patchPhase = ''
+    sed -e 's,/bin/bash,${bash}/bin/bash,' -i configure build/make/version.sh \
+      examples/gen_example_code.sh
+  '';
+
+  configurePhase = ''
+    mkdir -p build
+    cd build
+    ../configure --disable-install-srcs --disable-examples --enable-vp8 --enable-runtime-cpu-detect
+  '';
+
+  installPhase = ''
+    make quiet=false DIST_DIR=$out install
+  '';
+
+  meta = {
+    description = "VP8 video encoder";
+    homepage = http://code.google.com/p/webm;
+    license = "BSD";
+  };
+}
+

pkgs/top-level/all-packages.nix

@@ -4740,6 +4740,10 @@ let
     inherit fetchurl stdenv pkgconfig ncurses gpm glib;
   };
 
+  libvpx = import ../development/libraries/libvpx {
+    inherit fetchurl stdenv bash;
+  };
+
   libvterm = import ../development/libraries/libvterm {
     inherit fetchurl stdenv pkgconfig ncurses glib;
   };