anchor.diff:  
     buildInputs = runtimeDeps;
   
  -  installPhase = "" + lib.optionalString stdenv.isLinux ''
  +  preFixup = "" + lib.optionalString stdenv.isLinux ''
       for artifact in wezterm wezterm-gui wezterm-mux-server strip-ansi-escapes; do
  -      patchelf --set-rpath "${lib.makeLibraryPath runtimeDeps}" $releaseDir/$artifact
  -      install -D $releaseDir/$artifact -t $out/bin
  +      patchelf --set-rpath "${lib.makeLibraryPath runtimeDeps}" $out/bin/$artifact
       done
     '' + lib.optionalString stdenv.isDarwin ''
  -  mkdir -p "$out/Applications"
  -  OUT_APP="$out/Applications/WezTerm.app"
  -  cp -r assets/macos/WezTerm.app "$OUT_APP"
  -  rm $OUT_APP/*.dylib
  -  cp -r assets/shell-integration/* "$OUT_APP"
  -  cp $releaseDir/wezterm "$OUT_APP"
  -  cp $releaseDir/wezterm-mux-server "$OUT_APP"
  -  cp $releaseDir/wezterm-gui "$OUT_APP"
  -  cp $releaseDir/strip-ansi-escapes "$OUT_APP"
  +    mkdir -p "$out/Applications"
  +    OUT_APP="$out/Applications/WezTerm.app"
  +    cp -r assets/macos/WezTerm.app "$OUT_APP"
  +    rm $OUT_APP/*.dylib
  +    cp -r assets/shell-integration/* "$OUT_APP"
  +    ln -s $out/bin/{wezterm,wezterm-mux-server,wezterm-gui,strip-ansi-escapes} "$OUT_APP"
     '';
   
     # prevent further changes to the RPATH
  
positive.code:     Foundation
      CoreGraphics
      Cocoa
    ];
    pname = "wezterm";
  in
  
  rustPlatform.buildRustPackage {
    inherit pname;
    version = "unstable-2020-11-22";
  
    src = fetchFromGitHub {
      owner = "wez";
      repo = pname;
      rev = "3bd8d8c84591f4d015ff9a47ddb478e55c231fda";
      sha256 = "13xf3685kir4p159hsxrqkj9p2lwgfp0n13h9zadslrd44l8b8j8";
      fetchSubmodules = true;
    };
    cargoSha256 = "1ghjpyd3f5dqi6bblr6d2lihdschpyj5djfd1600hvb41x75lmhx";
  
    nativeBuildInputs = [
      pkg-config
  
negative.code:     libX11
      xcbutil
      libxcb
      xcbutilimage
      xcbutilkeysyms
      xcbutilwm
      libxkbcommon
  