// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <simgear/debug/logstream.hxx>
#include <simgear/io/iochannel.hxx>
#include <Main/globals.hxx>
#include <Main/fg_props.hxx>
-SG_USING_STD(vector);
+using std::vector;
FGLFSGlass::FGLFSGlass() :
press_node(fgGetNode("/environment/pressure-inhg[0]", true)),