{ stdenv
, fetchzip
, lazarus
, fpc
}:
stdenv.mkDerivation {
  pname = "mht2htmcl";
  version = "1.8.1.35";

  src = fetchzip {
    # url = "https://sourceforge.net/settings/mirror_choices?projectname=mht2htm&filename=mht2htm/1.8.1%20%2805.apr.2016%29/mht2htmcl-1.8.1.35_07.apr.2016.source.zip&selected=master";
    url = "mirror://sourceforge/mht2htm/mht2htm/1.8.1%20%2805.apr.2016%29/mht2htmcl-1.8.1.35_07.apr.2016.source.zip";
    hash = "sha256-XtUuCR7j6vE6DoVy1crQAjBj6RpG8yl3gOVKgxPQhmM=";
    stripRoot = false;
  };

  nativeBuildInputs = [ lazarus fpc ];

  patches = [
    ./01-fix-current-lazarus-compat.patch
  ];

  buildPhase = ''
    runHook preBuild

    lazbuild --lazarusdir=${lazarus}/share/lazarus \
      mht2htmcl.lpi

    runHook postBuild
  '';

  installPhase = ''
    runHook preInstall

    mkdir -p $out/bin
    cp mht2htmcl $out/bin/

    runHook postInstall
  '';
}