{ lib, stdenv, fetchurl, pkg-config, apacheHttpd, openssl, openldap, apr, aprutil }:

stdenv.mkDerivation rec {
  pname = "mod_ca";
  version = "0.2.2";

  src = fetchurl {
    url = "https://redwax.eu/dist/rs/${pname}-${version}.tar.gz";
    sha256 = "0gs66br3aig749rzifxn6j1rz2kps4hc4jppscly48lypgyygy8s";
  };

  nativeBuildInputs = [ pkg-config ];
  buildInputs = [ apacheHttpd openssl openldap apr aprutil ];

  # Note that configureFlags and installFlags are inherited by
  # the various submodules.
  #
  configureFlags = [
    "--with-apxs=${apacheHttpd.dev}/bin/apxs"
  ];

  installFlags = [
    "INCLUDEDIR=${placeholder "out"}/include"
    "LIBEXECDIR=${placeholder "out"}/modules"
  ];

  meta = with lib; {
    description = "RedWax CA service module";

    homepage = "https://redwax.eu";
    license = licenses.asl20;
    platforms = platforms.unix;
    maintainers = with maintainers; [ dirkx ];
  };
}