Break cycle of Prefs, Languages, FileNames

src/AudacityApp.cpp

@@ -1358,13 +1358,15 @@ bool AudacityApp::OnInit()
 #endif
 
    // Initialize preferences and language
-   InitPreferences();
+   wxFileName configFileName(FileNames::DataDir(), wxT("audacity.cfg"));
+   InitPreferences( configFileName );
    PopulatePreferences();
    // This test must follow PopulatePreferences, because if an error message
    // must be shown, we need internationalization to have been initialized
    // first, which was done in PopulatePreferences
    if ( !CheckWritablePreferences() ) {
-      ::AudacityMessageBox( UnwritablePreferencesErrorMessage() );
+      ::AudacityMessageBox(
+         UnwritablePreferencesErrorMessage( configFileName ) );
       return false;
    }