anchor.diff:  }:
   
   let
  -  inherit (stdenv.lib)
  +  inherit (lib)
       boolEn
       boolWt
       optional
  
positive.code: { stdenv
  , fetchurl
  
  , zlib
  
  
negative.code:     touch "$out"/nix-support/cc-wrapper-ignored
    '';
  
    meta = with lib; {
      description = "Tools for manipulating binaries (linker, assembler, etc.)";
      homepage = http://www.gnu.org/software/binutils/;
      license = licenses.gpl3Plus;
  