Added GLU_TESS_CALLBACK_TRIPLEDOT path into include/osg/GLU and enabled this

for AIX as reading the old paths this was required.  This looks like it is needed
under Xcode build as well.

CMakeLists.txt

@@ -99,7 +99,9 @@ INCLUDE_DIRECTORIES(
 # Platform specific definitions
 
 
-
+IF   (CMAKE_SYSTEM MATCHES "AIX.*")
+    ADD_DEFINITIONS(-DGLU_TESS_CALLBACK_TRIPLEDOT)
+ENDIF(CMAKE_SYSTEM MATCHES "AIX.*")
 
 IF(WIN32)
     ADD_DEFINITIONS(-D_SCL_SECURE_NO_WARNINGS)

include/osg/GLU

@@ -22,6 +22,10 @@
     #include <GL/glu.h>
 #endif
 
-typedef void (APIENTRY *GLU_TESS_CALLBACK)();
+#if defined(GLU_TESS_CALLBACK_TRIPLEDOT)
+    typedef void (APIENTRY *GLU_TESS_CALLBACK)(...);
+#else
+    typedef void (APIENTRY *GLU_TESS_CALLBACK)();
+#endif
 
 #endif  // __osgGLU_h