Ultrastar (#26524)

* ultrastardx-beta: init at 1.3.5

* libbass, libbass_fx: init at 24

* ultrastar-creator: init at 2017-04-12

* buildSupport/plugins.nix: add diffPlugins

Helper function to compare expected plugin lists to the found plugins.

* ultrastar-manager: init at 2017-05-24

The plugins are built in their own derivations, speeding up (re-)compilation.
The `diffPlugins` function from `beets` is reused to test for changes in the
plugin list on updates.

* beets: switch to diffPlugins

The function is basically just extracted for better reusability.

pkgs/games/ultrastardx/default.nix

@@ -1,32 +0,0 @@
-{stdenv, fetchurl, pkgconfig, lua, fpc, pcre, portaudio, freetype, libpng
-, SDL, SDL_image, ffmpeg, sqlite, zlib, libX11 }:
-
-stdenv.mkDerivation rec {
-  name = "ultrastardx-1.1";
-  src = fetchurl {
-    url = "mirror://sourceforge/ultrastardx/${name}-src.tar.gz";
-    sha256 = "0sfj5rfgj302avcp6gj5hiypcxms1wc6h3qzjaf5i2a9kcvnibcd";
-  };
-
-  buildInputs = [ pkgconfig fpc pcre portaudio freetype libpng SDL SDL_image ffmpeg
-    sqlite lua ];
-
-
-  # The fpc is not properly wrapped to add -rpath. I add this manually.
-  # I even do a trick on lib/lib64 for libgcc, that I expect it will work.
-  preBuild = ''
-    export NIX_LDFLAGS="$NIX_LDFLAGS -rpath ${SDL.out}/lib -rpath ${SDL_image}/lib -rpath ${libpng.out}/lib -rpath ${freetype.out}/lib -rpath ${portaudio}/lib -rpath ${ffmpeg.out}/lib -rpath ${zlib.out}/lib -rpath ${sqlite.out}/lib -rpath ${libX11.out}/lib -rpath ${pcre.out}/lib -rpath ${lua}/lib -rpath ${stdenv.cc.cc.out}/lib64 -rpath ${stdenv.cc.cc.out}/lib"
-
-    sed -i 414,424d Makefile
-  '';
-
-  # dlopened libgcc requires the rpath not to be shrinked
-  dontPatchELF = true;
-
-  meta = {
-    homepage = http://ultrastardx.sourceforge.net/;
-    description = "Free and open source karaoke game";
-    license = stdenv.lib.licenses.gpl2Plus;
-    broken = true;
-  };
-}