Fixed warnings

src/osg/glu/libtess/normal.cpp

@@ -78,7 +78,8 @@ static void ComputeNormal( GLUtesselator *tess, GLdouble norm[3] )
   GLUvertex *v, *v1, *v2;
   GLdouble c, tLen2, maxLen2;
   GLdouble maxVal[3], minVal[3], d1[3], d2[3], tNorm[3];
-  GLUvertex *maxVert[3], *minVert[3];
+  GLUvertex *maxVert[3]={0,0,0};
+  GLUvertex *minVert[3]={0,0,0};
   GLUvertex *vHead = &tess->mesh->vHead;
   int i;
 

src/osg/glu/libtess/tess.h

@@ -37,8 +37,11 @@
 
 // #include <GL/glu.h>
 #include <osg/GLU>
- 
-#define GLAPIENTRY GL_APIENTRY 
+
+
+#ifndef GLAPIENTRY
+    #define GLAPIENTRY GL_APIENTRY 
+#endif
 
 #include <setjmp.h>
 #include "mesh.h"