anchor.diff:  
     enableParallelBuilding = true;
   
  -  meta = {
  +  meta = with lib; {
       description = "ANSI Common Lisp Implementation";
       homepage = "https://common-lisp.net/project/mkcl/";
       license = licenses.lgpl2Plus;
  
positive.code: { lib, stdenv, fetchFromGitHub, fetchpatch, makeWrapper, gmp, gcc }:
  
  with lib; stdenv.mkDerivation rec {
    pname = "mkcl";
    version = "1.1.11";
  
  
negative.code:     cd contrib/tinycc
      ./configure --cc=cc \
        --elfinterp=$(< $NIX_CC/nix-support/dynamic-linker) \
        --crtprefix=${lib.getLib stdenv.cc.libc}/lib \
        --sysincludepaths=${lib.getDev stdenv.cc.libc}/include:{B}/include \
        --libpaths=${lib.getLib stdenv.cc.libc}/lib
    )'';
  
    postInstall = ''
  