{ lib, stdenv, ruby, bison, rake, fetchFromGitHub }: stdenv.mkDerivation rec { pname = "mruby"; version = "2.1.2"; src = fetchFromGitHub { owner = "mruby"; repo = "mruby"; rev = version; sha256 = "0fhfv8pi7i8jn2vgk2n2rjnbnfa12nhj514v8i4k353n7q4pmkh3"; }; nativeBuildInputs = [ ruby bison rake ]; # Necessary so it uses `gcc` instead of `ld` for linking. # https://github.com/mruby/mruby/blob/35be8b252495d92ca811d76996f03c470ee33380/tasks/toolchains/gcc.rake#L25 preBuild = if stdenv.isLinux then "unset LD" else null; installPhase = '' mkdir $out cp -R include build/host/{bin,lib} $out ''; doCheck = true; meta = with lib; { description = "An embeddable implementation of the Ruby language"; homepage = "https://mruby.org"; maintainers = [ maintainers.nicknovitski ]; license = licenses.mit; platforms = platforms.unix; }; }