anchor.diff:      cp -v *.el "$out/share/emacs/site-lisp"
     '';
   
  -  meta = {
  +  meta = with stdenv.lib; {
       description = "Source code tag system";
   
       longDescription = ''
  
positive.code:       operating system like GNU and BSD.
      '';
  
      license = stdenv.lib.licenses.gpl3Plus;
  
      homepage = http://www.gnu.org/software/global/;
  
      maintainers = [ ];
      platforms = stdenv.lib.platforms.unix;
    };
  }
  
negative.code: { fetchurl, stdenv, libtool, ncurses }:
  
  stdenv.mkDerivation rec {
    name = "global-6.3.4";
  
    src = fetchurl {
      url = "mirror://gnu/global/${name}.tar.gz";
      sha256 = "0hcplcayyjf42d8ygzla6142b5dq4ybq4wg3n3cgx3b5yfhvic85";
    };
  
    buildInputs = [ libtool ncurses ];
  