anchor.diff:    hardeningDisable = [ "format" ];
   
     configureFlags = [
  -    "GMP_CFLAGS=-I${gmp.dev}/include"
  +    "GMP_CFLAGS=-I${lib.getDev gmp}/include"
       "GMP_LDFLAGS=-L${gmp.out}/lib"
     ];
   
  
positive.code:     cd contrib/tinycc
      ./configure --cc=cc \
        --elfinterp=$(< $NIX_CC/nix-support/dynamic-linker) \
        --crtprefix=${getLib stdenv.cc.libc}/lib \
        --sysincludepaths=${getDev stdenv.cc.libc}/include:{B}/include \
        --libpaths=${getLib stdenv.cc.libc}/lib
    )'';
  
    postInstall = ''
  
negative.code: 
    enableParallelBuilding = true;
  
    meta = with lib; {
      description = "ANSI Common Lisp Implementation";
      homepage = "https://common-lisp.net/project/mkcl/";
      license = licenses.lgpl2Plus;
  