3 files changed, 7 insertions, 4 deletions
diff --git a/src/glu/sgi/libnurbs/interface/glcurveval.h b/src/glu/sgi/libnurbs/interface/glcurveval.h
index 4b44f6e847..a09a74d04c 100644
--- a/src/glu/sgi/libnurbs/interface/glcurveval.h
+++ b/src/glu/sgi/libnurbs/interface/glcurveval.h
@@ -93,7 +93,7 @@ public:
 	output_triangles = flag;
       }
 #ifdef _WIN32
-    void               putCallBack(GLenum which, void (APIENTRY *fn)() );
+    void               putCallBack(GLenum which, void (GLAPIENTRY *fn)() );
 #else
     void               putCallBack(GLenum which, _GLUfuncptr fn );
 #endif
diff --git a/src/glu/sgi/libnurbs/interface/glsurfeval.cc b/src/glu/sgi/libnurbs/interface/glsurfeval.cc
index a36b304508..b5bfab1e28 100644
--- a/src/glu/sgi/libnurbs/interface/glsurfeval.cc
+++ b/src/glu/sgi/libnurbs/interface/glsurfeval.cc
@@ -1184,8 +1184,11 @@ return;
 
 }
 
-void
-OpenGLSurfaceEvaluator::putCallBack(GLenum which, _GLUfuncptr fn )
+#ifdef _WIN32
+void OpenGLSurfaceEvaluator::putCallBack(GLenum which, void (GLAPIENTRY *fn)() )
+#else
+void OpenGLSurfaceEvaluator::putCallBack(GLenum which, _GLUfuncptr fn )
+#endif
 {
   switch(which)
     {
diff --git a/src/glu/sgi/libnurbs/interface/glsurfeval.h b/src/glu/sgi/libnurbs/interface/glsurfeval.h
index c34a58cb9b..b7a88069f5 100644
--- a/src/glu/sgi/libnurbs/interface/glsurfeval.h
+++ b/src/glu/sgi/libnurbs/interface/glsurfeval.h
@@ -145,7 +145,7 @@ public:
     void		newtmeshvert( long, long );
 
 #ifdef _WIN32
-    void 	        putCallBack(GLenum which, void (APIENTRY *fn)() );
+    void 	        putCallBack(GLenum which, void (GLAPIENTRY *fn)() );
 #else
     void 	        putCallBack(GLenum which, _GLUfuncptr fn );
 #endif