pkgs/applications/window-managers/xmonad/wrapper.nix


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{
  stdenv,
  ghcWithPackages,
  xmessage,
  makeWrapper,
  packages,
}:

let
  xmonadEnv = ghcWithPackages (self: [ self.xmonad ] ++ packages self);
in
stdenv.mkDerivation {
  pname = "xmonad-with-packages";
  inherit (xmonadEnv) version;

  nativeBuildInputs = [ makeWrapper ];

  buildCommand = ''
    install -D ${xmonadEnv}/share/man/man1/xmonad.1.gz $out/share/man/man1/xmonad.1.gz
    makeWrapper ${xmonadEnv}/bin/xmonad $out/bin/xmonad \
      --set XMONAD_GHC "${xmonadEnv}/bin/ghc" \
      --set XMONAD_XMESSAGE "${xmessage}/bin/xmessage"
  '';

  # trivial derivation
  preferLocalBuild = true;
  allowSubstitutes = false;
}