Added to wxSystemSettings for better GTK+ themes compatibility

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8224 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/dialogs/dialogs.cpp

@@ -389,7 +389,7 @@ void MyFrame::FileOpen2(wxCommandEvent& WXUNUSED(event) )
     s_extDef = path.AfterLast(_T('.'));
 
     wxLogMessage(_T("You selected the file '%s', remembered extension '%s'"),
-                 path, s_extDef);
+                 (const wxChar*) path, (const wxChar*) s_extDef);
 }
 
 void MyFrame::FilesOpen(wxCommandEvent& WXUNUSED(event) )