first phase of transition to unified Unicode build:

1. changed c_str() to return wxCStrData (implicitly convertible to wxChar*)
2. added template type-safe wrappers for vararg functions
3. added wxUniChar class representing single Unicode character
4. changed wxString::operator[] and wxString::iterator to return wxUniChar


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44865 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/intl.cpp

@@ -2632,8 +2632,9 @@ const wxChar *wxLocale::GetString(const wxChar *szOrigString,
             wxLogTrace(TRACE_I18N,
                        _T("string \"%s\"[%ld] not found in %slocale '%s'."),
                        szOrigString, (long)n,
-                       szDomain ? wxString::Format(_T("domain '%s' "), szDomain).c_str()
-                                : _T(""),
+                       szDomain
+                         ? (const wxChar*)wxString::Format(_T("domain '%s' "), szDomain).c_str()
+                         : _T(""),
                        m_strLocale.c_str());
         }
 #endif // __WXDEBUG__