tdlib: 1.8.38 -> 1.8.39

stdenv.mkDerivation {

  pname = "tdlib";

  version = "1.8.38";

  version = "1.8.39";

  src = fetchFromGitHub {

    owner = "tdlib";

    # The tdlib authors do not set tags for minor versions, but

    # external programs depending on tdlib constrain the minor

    # version, hence we set a specific commit with a known version.

    rev = "d321984b75fccdb76239529e8aadcf7f80b0e35a";

    hash = "sha256-5QNcpwW0viWUtsW7b5oSq6X0tRyup6V5CT/BNhdv6lw=";

    rev = "056963e48fa8d3f89556239c22d6ac843d3c8a5b";

    hash = "sha256-pQ+uYnyBTH4L6RW3MqAttx7K3z8fyEbzRy8JSjbBL98=";

  };

  buildInputs = [ gperf openssl readline zlib ];