anchor.diff: -{ fetchurl, stdenv, libtool, ncurses, ctags, sqlite
  -, pythonPackages, makeWrapper }:
  +{ fetchurl, stdenv, libtool, makeWrapper
  +, coreutils, ctags, ncurses, pythonPackages, sqlite, pkgconfig
  +}:
   
   stdenv.mkDerivation rec {
     name = "global-6.4";
  
positive.code: 
    meta = with stdenv.lib; {
      description = "Source code tag system";
  
      longDescription = ''
        GNU GLOBAL is a source code tagging system that works the same way
        across diverse environments (Emacs, vi, less, Bash, web browser, etc).
  
negative.code:     sha256 = "13i4zwx6gaibc4j79wd0hgxysw8ibxz9c018zxhydnxlyadzcnri";
    };
  
    nativeBuildInputs = [ libtool makeWrapper ];
  
    buildInputs = [ ncurses ];
  
    propagatedBuildInputs = [ pythonPackages.pygments ];
  
    configureFlags = [
      "--with-ltdl-include=${libtool}/include"
      "--with-ltdl-lib=${libtool}/lib"
      "--with-ncurses=${ncurses}"
      "--with-sqlite3=${sqlite}"
      "--with-exuberant-ctags=${ctags}/bin/ctags"
      "--with-posix-sort=${coreutils}/bin/sort"
    ];
  
    doCheck = true;
  
  