anchor.diff:        done
         mkdir $out/bin
         makeWrapper $out/lib/gzdoom/gzdoom $out/bin/gzdoom
  +
  +      runHook postInstall
       '';
   
       meta = with lib; {
  
positive.code: { lib, stdenv, fetchFromGitHub, cmake, makeWrapper, openal, fluidsynth_1
  , soundfont-fluid, libGL, SDL2, bzip2, zlib, libjpeg, libsndfile, mpg123
  , game-music-emu, pkg-config }:
  
  let
    zmusic-src = fetchFromGitHub {
  
negative.code: 
      NIX_CFLAGS_LINK = "-lopenal -lfluidsynth";
  
      desktopItems = [
        (makeDesktopItem {
          name = "gzdoom";
          exec = "gzdoom";
          desktopName = "GZDoom";
          categories = "Game;";
        })
      ];
  
      installPhase = ''
        runHook preInstall
  
        install -Dm755 gzdoom "$out/lib/gzdoom/gzdoom"
        for i in *.pk3; do
          install -Dm644 "$i" "$out/lib/gzdoom/$i"
  