use UTF8-encoded char* strings in UTF8 build instead of wchar_t* if the current locale uses UTF8;

fall back to widechar CRT functions in the locale is not UTF8


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45663 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/ftp.cpp

@@ -38,6 +38,7 @@
     #include "wx/utils.h"
     #include "wx/log.h"
     #include "wx/intl.h"
+    #include "wx/wxcrtvararg.h"
 #endif // WX_PRECOMP
 
 #include "wx/sckaddr.h"