{ stdenvNoCC , sigtool , cctools }: let stdenv = stdenvNoCC; in stdenv.mkDerivation { name = "signing-utils"; dontUnpack = true; dontConfigure = true; dontBuild = true; installPhase = '' substituteAll ${./utils.sh} $out ''; # Substituted variables inherit sigtool; codesignAllocate = "${cctools}/bin/${cctools.targetPrefix}codesign_allocate"; }