anchor.diff:  
     enableParallelBuilding = true;
   
  -  buildInputs = [ openssl cyrus_sasl db groff ];
  +  buildInputs = [ openssl cyrus_sasl db groff libtool ];
   
     configureFlags =
       [ "--enable-overlays"
         "--disable-dependency-tracking"   # speeds up one-time build
  +      "--enable-modules"
       ] ++ stdenv.lib.optional (openssl == null) "--without-tls"
         ++ stdenv.lib.optional (cyrus_sasl == null) "--without-cyrus-sasl"
         ++ stdenv.lib.optional stdenv.isFreeBSD "--with-pic";
  
positive.code: { stdenv, fetchurl, openssl, cyrus_sasl, db, groff }:
  
  stdenv.mkDerivation rec {
    name = "openldap-2.4.44";
  
negative.code:     rm -r libraries/*/.libs
    '';
  
    postInstall = ''
      chmod +x $out/lib/*.so
    '';
  
    meta = with stdenv.lib; {
      homepage    = http://www.openldap.org/;
      description = "An open source implementation of the Lightweight Directory Access Protocol";
  