wide character array initialized from incompatible wide string

[shijiameng]

Hi,

We need wide characters (unicode) in our program, so we used wchar_t type to store wide strings as such form: wchar_t str[] = L"foo"; However, it couldn't be compiled with an error, saying "wide character array initialized from incompatible wide string", while in ubuntu, it was OK through gcc.
Is there any extra setting to support such wchar_t?