python3Packages.moderngl: fix darwin build (#486759)

{

  stdenv,

  lib,

  buildPythonPackage,

  fetchPypi,

  libX11,

  setuptools,

  glcontext,

  pkgs,

}:

buildPythonPackage rec {

    hash = "sha256-UpNqmMyy8uHW48sYUospGfaDHn4/kk54i1hzutzlEps=";

  };

  postPatch = ''

  postPatch = lib.optionalString (stdenv.hostPlatform.isLinux) ''

    substituteInPlace _moderngl.py \

      --replace-fail '"libGL.so"' '"${libGL}/lib/libGL.so"' \

      --replace-fail '"libEGL.so"' '"${libGL}/lib/libEGL.so"'

  build-system = [ setuptools ];

  buildInputs = [

  buildInputs = lib.optionals (stdenv.hostPlatform.isLinux) [

    libGL

    libX11

  ];

    changelog = "https://github.com/moderngl/moderngl/releases/tag/${version}";

    license = lib.licenses.mit;

    maintainers = with lib.maintainers; [ c0deaddict ];

    # should be mesa.meta.platforms, darwin build breaks.

    platforms = lib.platforms.linux;

    inherit (pkgs.mesa.meta) platforms;

  };

}