anchor.diff:        produced flowcharts in Emacs.
       '';
   
  -    license = stdenv.lib.licenses.gpl3Plus;
  +    license = licenses.gpl3Plus;
   
       homepage = http://www.gnu.org/software/cflow/;
   
  -    maintainers = [ ];
  +    maintainers = [ maintainers.vrthra ];
   
       /* On Darwin, build fails with:
   
  
positive.code: { stdenv, fetchurl, gettext, emacs }:
  
  stdenv.mkDerivation rec {
    name = "cflow-1.4";
  
    src = fetchurl {
      url = "mirror://gnu/cflow/${name}.tar.bz2";
      sha256 = "1jkbq97ajcf834z68hbn3xfhiz921zhn39gklml1racf0kb3jzh3";
    };
  
    patchPhase = ''
  
negative.code: 
    doCheck = true;
  
    meta = with stdenv.lib; {
      description = "Tool to analyze the control flow of C programs";
  
      longDescription = ''
  