-#ifdef __DEBUG__
-
-// ----------------------------------------------------------------------------
-//
-// ----------------------------------------------------------------------------
-
+// VZ: I don't know it's not done for compilers other than VC++ but I leave it
+// as is. Please note, though, that tracing OLE interface calls may be
+// incredibly useful when debugging OLE programs.
+#if defined(__WXDEBUG__) && defined(__VISUALC__) && (__VISUALC__ >= 1000)