#include <simgear/compiler.h>
#include <plib/ul.h>
-#include STL_STRING
+#include <string>
#include <sstream>
#include <istream>
#include "ReaderWriterSTG.hxx"
#include "TileEntry.hxx"
-SG_USING_STD(string);
+using std::string;
using namespace simgear;
ModelLoadHelper *TileEntry::_modelLoader=0;