Add libsass

pkgs/development/libraries/libsass/default.nix

@@ -0,0 +1,27 @@
+{ stdenv, lib, fetchFromGitHub, autoconf, automake, libtool }:
+
+stdenv.mkDerivation rec {
+  name = "libsass-${version}";
+  version = "3.1.0";
+
+  src = fetchFromGitHub {
+    owner = "sass";
+    repo = "libsass";
+    rev = version;
+    sha256 = "1k9a6hiybqk7xx4k2cb9vhdqskrrzhi60dvwp3gx39jhjqjfl96p";
+  };
+
+  preConfigure = ''
+    autoreconf --force --install
+  '';
+
+  buildInputs = [ autoconf automake libtool ];
+
+  meta = with lib; {
+    description = "A C/C++ implementation of a Sass compiler";
+    license = licenses.mit;
+    homepage = https://github.com/sass/libsass;
+    maintainers = with maintainers; [ offline ];
+    platforms = with platforms; unix;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -8905,6 +8905,8 @@ let
 
   libraw1394 = callPackage ../development/libraries/libraw1394 { };
 
+  libsass = callPackage ../development/libraries/libsass { };
+
   libsexy = callPackage ../development/libraries/libsexy { };
 
   libsepol = callPackage ../os-specific/linux/libsepol { };