diff --git a/vcg/math/eigen_matrix_addons.h b/vcg/math/eigen_matrix_addons.h
index b42412b5..3fb9a0e8 100644
--- a/vcg/math/eigen_matrix_addons.h
+++ b/vcg/math/eigen_matrix_addons.h
@@ -21,7 +21,9 @@
 *                                                                           *
 ****************************************************************************/
 
+#ifdef __GNUC__
 #warning You are including deprecated math stuff
+#endif
 
 enum {Dimension = SizeAtCompileTime};
 typedef typename ei_to_vcgtype<Matrix>::type EquivVcgType;
diff --git a/vcg/math/eigen_matrixbase_addons.h b/vcg/math/eigen_matrixbase_addons.h
index 68e47e13..30c7b20c 100644
--- a/vcg/math/eigen_matrixbase_addons.h
+++ b/vcg/math/eigen_matrixbase_addons.h
@@ -21,8 +21,9 @@
 *                                                                           *
 ****************************************************************************/
 
+#ifdef __GNUC__
 #warning You are including deprecated math stuff
-
+#endif
 
 typedef Scalar ScalarType;