gtk-traymanager nix shell

{ nixpkgs ? import <nixpkgs> {}, compiler ? "default" }:

let

  inherit (nixpkgs) pkgs;

  f = { mkDerivation, base, glib, gtk3, stdenv, x11 }:
      mkDerivation {
        pname = "gtk-traymanager";
        version = "1.0.0";
        src = ./.;
        libraryHaskellDepends = [ base glib gtk3 ];
        libraryPkgconfigDepends = [ x11 gtk3 ];
        homepage = "http://github.com/travitch/gtk-traymanager";
        description = "A wrapper around the eggtraymanager library for Linux system trays";
        license = stdenv.lib.licenses.lgpl21;
      };

  haskellPackages = if compiler == "default"
                       then pkgs.haskellPackages
                       else pkgs.haskell.packages.${compiler};

  drv = haskellPackages.callPackage f {};

in

  if pkgs.lib.inNixShell then drv.env else drv