{ callPackage, fetchFromGitHub, ... } @ args: callPackage ./generic.nix (args // rec { version = "1.4.2"; src = fetchFromGitHub { owner = "msgpack"; repo = "msgpack-c"; rev = "cpp-${version}"; sha256 = "0zlanifi5hmm303pzykpidq5jbapl891zwkwhkllfn8ab1jvzbaa"; }; })