#endif
#include <GL/glut.h>
-#include <simgear/xgl/xgl.h>
+#include <GL/gl.h>
// Handle keyboard events
void GLUTkey(unsigned char k, int x, int y);
+void GLUTkeyup(unsigned char k, int x, int y);
void GLUTspecialkey(int k, int x, int y);
+void GLUTspecialkeyup(int k, int x, int y);
#endif // _KEYBOARD_HXX