#ifdef SG_HAVE_STD_INCLUDES
# include <istream>
-#elif defined( FG_HAVE_NATIVE_SGI_COMPILERS )
+#elif defined( SG_HAVE_NATIVE_SGI_COMPILERS )
# include <iostream.h>
#elif defined( __BORLANDC__ )
# include <iostream>
# undef NDEBUG
#endif
-FG_USING_STD(string);
-FG_USING_STD(set);
+SG_USING_STD(string);
+SG_USING_STD(set);
-#if ! defined( FG_HAVE_NATIVE_SGI_COMPILERS )
-FG_USING_STD(istream);
+#if ! defined( SG_HAVE_NATIVE_SGI_COMPILERS )
+SG_USING_STD(istream);
#endif
class FGAirportsUtil {
public:
-#ifdef FG_NO_DEFAULT_TEMPLATE_ARGS
+#ifdef SG_NO_DEFAULT_TEMPLATE_ARGS
typedef set< FGAirport, less< FGAirport > > container;
#else
typedef set< FGAirport > container;