anchor.diff:      ++ optional   (khard != null) "--with-khard"
       ++ optional      (mu != null) "--with-mu";
   
  -  patches = [ ./add-methods-to-rc.patch ];
  +  patches = [ ./add-methods-to-rc.patch
  +    # fix undefined exec_prefix. Remove with the next release
  +    (fetchpatch {
  +      url = "https://github.com/RolandRosenfeld/lbdb/commit/60b7bae255011f59212d96adfbded459d6a27129.patch";
  +      sha256 = "129zg086glmlalrg395jq8ljcp787dl3rxjf9v7apsd8mqfdkl2v";
  +      excludes = [ "debian/changelog" ];
  +    })
  +  ];
     postFixup = "wrapProgram $out/lib/mutt_ldap_query --prefix PERL5LIB : "
       + "${AuthenSASL}/${perl.libPrefix}"
       + ":${ConvertASN1}/${perl.libPrefix}"
  
positive.code:     license = licenses.gpl2;
      platforms = platforms.all;
      description = "The Little Brother's Database";
      maintainers = [ maintainers.kaiha ];
    };
  }
  
negative.code: { stdenv, fetchurl, fetchpatch, perl, perlPackages, finger_bsd, makeWrapper
  , abook ? null
  , gnupg ? null
  , goobook ? null
  