* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Id$
*
#endif // Native SGI compilers
-#if defined ( sun )
+#if defined (__sun)
# include <strings.h>
# include <memory.h>
# if defined ( __cplusplus )
# define SG_GLU_H <OpenGL/glu.h>
# define SG_GLEXT_H <OpenGL/glext.h>
# define SG_GLUT_H <GLUT/glut.h>
+
+inline int (isnan)(double r) { return !(r <= 0 || r >= 0); }
#else
# define SG_GL_H <GL/gl.h>
# define SG_GLX_H <GL/glx.h>
#endif // SG_INCOMPLETE_FUNCTIONAL
#endif // _SG_COMPILER_H
+