anchor.diff:    };
   
     nativeBuildInputs = [
  -    autoreconfHook gettext libtool pkgconfig
  +    autoreconfHook gettext pkgconfig
     ] ++ stdenv.lib.optional doCheck dejagnu;
     buildInputs = [
       gdbm pam readline ncurses gnutls guile texinfo gnum4 sasl fribidi nettools
  -    gss mysql.connector-c
  +    gss mysql.connector-c python
     ];
   
     patches = [
  
positive.code:   ];
  
    postPatch = ''
      sed -e '/AM_GNU_GETTEXT_VERSION/s/0.18/0.19/' -i configure.ac
      sed -i -e '/chown root:mail/d' \
             -e 's/chmod [24]755/chmod 0755/' \
        */Makefile{.in,.am}
    '';
  
    preCheck = ''
      # Add missing files.
      cp ${builtins.toString readmsg-tests} readmsg/tests/
      for f in hdr.at nohdr.at twomsg.at weed.at; do
        mv readmsg/tests/*-$f readmsg/tests/$f
  
negative.code: { stdenv, fetchurl, fetchpatch, autoreconfHook, dejagnu, gettext, pkgconfig
  , gdbm, pam, readline, ncurses, gnutls, guile, texinfo, gnum4, sasl, fribidi, nettools
  , python, gss, mysql }:
  
  let
    p = "https://raw.githubusercontent.com/gentoo/gentoo/9c921e89d51876fd876f250324893fd90c019326/net-mail/mailutils/files";
  in stdenv.mkDerivation rec {
    name = "${project}-${version}";
    project = "mailutils";
    version = "3.2";
  