anchor.diff:  
     patches = [ ./cve-2015-1345.patch ];
   
  -  #outputs = [ "out" "doc" ]; ToDo
  +  outputs = [ "out" "info" ]; # the man pages are rather small
   
     buildInputs = [ pcre xz.bin libiconv ];
   
  
positive.code:       chmod +x $out/bin/egrep $out/bin/fgrep
      '';
  
    meta = {
      homepage = http://www.gnu.org/software/grep/;
      description = "GNU implementation of the Unix grep command";
  
  
negative.code:       prints the matching lines.
      '';
  
      license = licenses.gpl3Plus;
  
      maintainers = [ maintainers.eelco ];
      platforms = platforms.all;
    };
  
    passthru = {inherit pcre;};
  