{ stdenv, fetchFromGitHub, perl, cmake }: stdenv.mkDerivation rec { name = "libical-${version}"; version = "2.0.0"; src = fetchFromGitHub { owner = "libical"; repo = "libical"; rev = "v${version}"; sha256 = "0xsvqy1hzmwxn783wrb2k8p751544pzv39v9ynr9pj4yzkwjzsvb"; }; nativeBuildInputs = [ perl cmake ]; patches = [ # TODO: upstream this patch ./respect-env-tzdir.patch ]; meta = with stdenv.lib; { homepage = https://github.com/libical/libical; description = "An Open Source implementation of the iCalendar protocols"; license = licenses.mpl10; platforms = platforms.unix; maintainers = with maintainers; [ wkennington ]; }; }