add Sorcer, an LV2 synth.

pkgs/development/libraries/audio/ntk/default.nix

@@ -0,0 +1,33 @@
+{ stdenv, fetchgit, cairo, libjpeg, libXft, pkgconfig, python2 }:
+
+stdenv.mkDerivation rec {
+  name = "ntk-${version}";
+  version = "2014-10-18";
+  src = fetchgit {
+    url = "git://git.tuxfamily.org/gitroot/non/fltk.git";
+    rev = "5719b0044d9f267de5391fab006370cc7f4e70bd";
+    sha256 = "7ecedb049e00cc9a1bb0e0e2f02e5a734c873653b68551e6573474c04abe1821";
+  };
+
+  buildInputs = [
+    cairo libjpeg libXft pkgconfig python2
+  ];
+
+  buildPhase = ''
+    python waf configure --prefix=$out
+    python waf
+  '';
+
+  installPhase = ''
+    python waf install
+  '';
+
+  meta = {
+    description = "Fork of FLTK 1.3.0 with additional functionality.";
+    version = "${version}";
+    homepage = "http://non.tuxfamily.org/";
+    license = stdenv.lib.licenses.lgpl21;
+    maintainers = [ stdenv.lib.maintainers.magnetophon ];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}