{ lib, stdenv, fetchFromGitHub, cmake, ninja, mbedtlsSupport ? true, mbedtls }: stdenv.mkDerivation rec { pname = "nng"; version = "1.6.0-prerelease"; src = fetchFromGitHub { owner = "nanomsg"; repo = "nng"; rev = "539e559e65cd8f227c45e4b046ac41c0edcf6c32"; sha256 = "sha256-86+f0um25Ywn78S2JrV54K7k3O6ots0q2dCco1aK0xM="; }; nativeBuildInputs = [ cmake ninja ] ++ lib.optionals mbedtlsSupport [ mbedtls ]; buildInputs = lib.optionals mbedtlsSupport [ mbedtls ]; cmakeFlags = [ "-G Ninja" "-DNNG_ENABLE_TLS=ON" ] ++ lib.optionals mbedtlsSupport [ "-DMBEDTLS_ROOT_DIR=${mbedtls}" ]; meta = with lib; { homepage = "https://nng.nanomsg.org/"; description = "Nanomsg next generation"; license = licenses.mit; mainProgram = "nngcat"; platforms = platforms.unix; maintainers = with maintainers; [ nviets ]; }; }