{ stdenv, fetchurl, pkgconfig, openssl, libxslt, perl
, curl, pcre, libxml2, librdf_rasqal, librdf_raptor
, mysql ? null, postgresql ? null, sqlite ? null, bdb ? null
}:

stdenv.mkDerivation rec {
  name = "redland-1.0.8";

  src = fetchurl {
    url = "mirror://sf/librdf/${name}.tar.gz";
    sha256 = "8a77fcfd20fea2c6e53761d6dcbbee3fdb35e5308de36c1daa0d2014e5a96afe";
  };
  
  buildInputs = [ pkgconfig ];
  
  propagatedBuildInputs =
    [ bdb openssl libxslt perl mysql postgresql sqlite curl pcre libxml2
      librdf_rasqal librdf_raptor
    ];
    
  configureFlags =
    [ "--with-threads" ]
    ++ stdenv.lib.optional (bdb != null) "--with-bdb=${bdb}";
  
  patchPhase =
    ''
      sed -e 1s@/usr@${perl}@ -i utils/touch-mtime.pl

      # Redland 1.0.9 uses an internal pre-processor symbol SQLITE_API
      # that collides with a symbol of the same name in sqlite 3.6.19.
      # This is a quick fix for the problem. A real solution needs to be
      # implemented upstream, though.
      find . -type f -exec sed -i -e 's/SQLITE_API/REDLAND_SQLITE_API/g' {} \;
    '';
}