{ lib, stdenv, fetchFromGitHub, }: stdenv.mkDerivation rec { pname = "exprtk"; version = "0.0.3"; src = fetchFromGitHub { owner = "ArashPartow"; repo = pname; rev = version; hash = "sha256-A4UzNYZZGgTJOw9G4Jg1wJZhxguFRohNEcwmwUOAX18="; }; dontBuild = true; installPhase = '' runHook preInstall install -Dm644 exprtk.hpp "$out/include/exprtk.hpp" runHook postInstall ''; meta = with lib; { description = "C++ Mathematical Expression Toolkit Library"; homepage = "https://www.partow.net/programming/exprtk/index.html"; license = licenses.mit; maintainers = [ ]; }; }