+#ifdef HAVE_CONFIG
+# include <config.h>
+#endif
+
+#include <simgear/compiler.h>
+#include <simgear/timing/sg_time.hxx>
+
+#include <string>
+
+#include <Airports/simple.hxx>
+
+using std::string;
+
+
+// Read in configuration (files and command line optoins) but only set
+// fg_root
+bool fgInitFGRoot ( int argc, char **argv );
+
+
+// Return the current base package version
+string fgBasePackageVersion();
+
+