+#define S_(x) context_translation(x)
+
+extern void error_dialog (wxWindow *, wxString);
+extern bool confirm_dialog (wxWindow *, wxString);
+extern wxStaticText* add_label_to_sizer (wxSizer *, wxWindow *, wxString, bool left, int prop = 0);
+extern wxStaticText* add_label_to_grid_bag_sizer (wxGridBagSizer *, wxWindow *, wxString, bool, wxGBPosition, wxGBSpan span = wxDefaultSpan);
+extern std::string wx_to_std (wxString);
+extern wxString std_to_wx (std::string);
+extern void dcpomatic_setup_i18n ();
+extern wxString context_translation (wxString);
+extern std::string string_client_data (wxClientData* o);
+extern wxString time_to_timecode (DCPTime t, float fps);
+
+extern void checked_set (wxFilePickerCtrl* widget, std::string value);
+extern void checked_set (wxSpinCtrl* widget, int value);
+extern void checked_set (wxSpinCtrlDouble* widget, double value);
+extern void checked_set (wxChoice* widget, int value);
+extern void checked_set (wxChoice* widget, std::string value);
+extern void checked_set (wxChoice* widget, std::vector<std::pair<std::string, std::string> > items);
+extern void checked_set (wxTextCtrl* widget, std::string value);
+extern void checked_set (wxTextCtrl* widget, wxString value);
+extern void checked_set (wxCheckBox* widget, bool value);
+extern void checked_set (wxRadioButton* widget, bool value);
+extern void checked_set (wxStaticText* widget, std::string value);
+extern void checked_set (wxStaticText* widget, wxString value);
+
+extern int wx_get (wxChoice* widget);
+extern int wx_get (wxSpinCtrl* widget);
+extern double wx_get (wxSpinCtrlDouble* widget);
+
+/* GTK 2.24.17 has a buggy GtkFileChooserButton and it was put in Ubuntu 13.04.
+ This also seems to apply to 2.24.20 in Ubuntu 13.10 and 2.24.23 in Ubuntu 14.04.
+ Use our own dir picker as this is the least bad option I can think of.
+*/
+#if defined(__WXMSW__) || (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION == 24 && (GTK_MICRO_VERSION == 17 || GTK_MICRO_VERSION == 20 || GTK_MICRO_VERSION == 23))
+#define DCPOMATIC_USE_OWN_DIR_PICKER
+#endif