anchor.diff:      "--disable-coverage"
     ];
   
  -  buildInputs = optionals pcregrep [
  -    bzip2
  -    zlib
  -  ];
  -
     outputs = [
       "out"
       "doc"
  
positive.code:     sha256 = "1q6lrj9b08l1q39vxipb0fi88x6ybvkr6439h8bjb9r8jd81fsn6";
    };
  
    configureFlags = [
      "--enable-pcre2-8"
      "--enable-pcre2-16"
  
negative.code:   ];
  
    doCheck = true;
  
    meta = with stdenv.lib; {
      description = "Perl Compatible Regular Expressions";
  