{ stdenv , lib , fetchFromGitHub , cmake }: let testData = fetchFromGitHub { owner = "nlohmann"; repo = "json_test_data"; rev = "v3.0.0"; sha256 = "O6p2PFB7c2KE9VqWvmTaFywbW1hSzAP5V42EuemX+ls="; }; in stdenv.mkDerivation rec { pname = "nlohmann_json"; version = "3.10.2"; src = fetchFromGitHub { owner = "nlohmann"; repo = "json"; rev = "v${version}"; sha256 = "/OFNfukrIyfJmD0ko174aud9T6ZOesHANJjyfk4q/Vs="; }; nativeBuildInputs = [ cmake ]; cmakeFlags = [ "-DBuildTests=${if doCheck then "ON" else "OFF"}" "-DJSON_MultipleHeaders=ON" ] ++ lib.optional doCheck "-DJSON_TestDataDirectory=${testData}"; doCheck = stdenv.hostPlatform == stdenv.buildPlatform; # skip tests that require git or modify “installed files” preCheck = '' checkFlagsArray+=("ARGS=-LE 'not_reproducible|git_required'") ''; postInstall = "rm -rf $out/lib64"; meta = with lib; { description = "JSON for Modern C++"; homepage = "https://json.nlohmann.me"; changelog = "https://github.com/nlohmann/json/blob/develop/ChangeLog.md"; license = licenses.mit; platforms = platforms.all; }; }