{ stdenv, lib, which, file, mumble, mumble_i686 }: let binPath = lib.makeBinPath [ which file ]; in stdenv.mkDerivation { name = "mumble-overlay-${mumble.version}"; inherit (mumble) src; phases = [ "unpackPhase" "installPhase" "fixupPhase" ]; installPhase = '' mkdir -p $out/lib ln -s ${mumble}/lib/libmumble.so.1.* $out/lib/libmumble.so.1 ${lib.optionalString (mumble_i686 != null) '' mkdir -p $out/lib32 ln -s ${mumble_i686}/lib/libmumble.so.1.* $out/lib32/libmumble.so.1 ''} install -Dm755 scripts/mumble-overlay $out/bin/mumble-overlay sed -i "s,/usr/lib,$out/lib,g" $out/bin/mumble-overlay sed -i '2iPATH="${binPath}:$PATH"' $out/bin/mumble-overlay ''; }