added wavesurfer (sound analysis tool) and its dependency snack (tcl /python sound tool library)

svn path=/nixpkgs/trunk/; revision=12904

pkgs/development/libraries/snack/default.nix

@@ -0,0 +1,30 @@
+# alsaLib vorbisTools python can be made  optional
+
+args:
+args.stdenv.mkDerivation {
+  name = "snack-2.2.10";
+
+  src = args.fetchurl {
+    url = http://www.speech.kth.se/snack/dist/snack2.2.10.tar.gz;
+    sha256 = "07p89jv9qnjqkszws9sssq93ayvwpdnkcxrvyicbm4mb8x2pdzjb";
+  };
+
+  configureFlags = "--with-tcl=${args.tcl}/lib --with-tk=${args.tk}/lib";
+
+  postUnpack=''sourceRoot="$sourceRoot/unix"'';
+
+  buildInputs =(with args; [python tcl tk vorbisTools pkgconfig x11]);
+
+  postInstall="aoeu";
+
+  installPhase=''
+    ensureDir $out
+    make install DESTDIR="$out" 
+  '';
+
+  meta = { 
+      description = "The Snack Sound Toolkit (Tcl)";
+      homepage = "http://www.speech.kth.se/snack/";
+      license = "GPL-2";
+  };
+}