{ mkDerivation, fetchurl }: mkDerivation rec { version = "21.0"; sha256 = "0khprgawmbdpn9b8jw2kksmvs6b45mibpjralsc0ggxym1397vm8"; prePatch = '' substituteInPlace configure.in --replace '`sw_vers -productVersion`' '10.10' ''; }