{ stdenv , lib , fetchurl , libsndfile , pkg-config , python3 , wafHook , pipewire }: stdenv.mkDerivation rec { pname = "lv2"; version = "1.18.2"; outputs = [ "out" "dev" ]; src = fetchurl { url = "https://lv2plug.in/spec/${pname}-${version}.tar.bz2"; sha256 = "sha256-TokfvHRMBYVb6136gugisUkX3Wbpj4K4Iw29HHqy4F4="; }; nativeBuildInputs = [ pkg-config wafHook ]; buildInputs = [ libsndfile python3 ]; wafConfigureFlags = [ "--includedir=${placeholder "dev"}/include" "--bindir=${placeholder "dev"}/bin" ] ++ lib.optionals stdenv.isDarwin [ "--lv2dir=${placeholder "out"}/lib/lv2" ]; passthru.tests = { inherit pipewire; }; meta = with lib; { homepage = "https://lv2plug.in"; description = "A plugin standard for audio systems"; license = licenses.mit; maintainers = with maintainers; [ goibhniu ]; platforms = platforms.unix; }; }