-extern gdouble ves_icall_System_Math_Floor (gdouble x);
-extern gdouble ves_icall_System_Math_Round (gdouble x);
-extern gdouble ves_icall_System_Math_Round2 (gdouble value, gint32 digits);
+extern gdouble ves_icall_System_Math_Floor (gdouble x) MONO_INTERNAL;
+extern gdouble ves_icall_System_Math_Round (gdouble x) MONO_INTERNAL;
+extern gdouble ves_icall_System_Math_Round2 (gdouble value, gint32 digits) MONO_INTERNAL;