+- Don't pass wxString::c_str() to vararg functions any more! Due to Unicode
+ changes, c_str() now returns an object and not a simple char pointer, so
+ using it with vararg functions does not work any more. The preferred
+ solution is to use wx-provided equivalents, e.g. wxPrintf() instead of
+ printf() which has the added benefit that you don't need to call c_str()
+ any more and can pass wxString objects directly. If this is impossible,
+ add explicit casts to "const char*" or "const wchar_t*". See wxString
+ documentation for more details.
+
+ Notice that using wxString::c_str() with vararg functions does result in
+ compilation errors with g++ and most other compilers but not MSVC. Try to
+ build your code with g++ to detect all such problems at compile-time.
+