extern std::string day_of_week_to_string (boost::gregorian::greg_weekday d);
extern void emit_subtitle_image (dcpomatic::ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, std::shared_ptr<TextDecoder> decoder);
extern bool show_jobs_on_console (bool progress);
-extern void copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, boost::function<void (float)>);
+extern void copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)>);
extern dcp::Size scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container);
extern dcp::DecryptedKDM decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm);
extern boost::filesystem::path default_font_file ();
extern std::string to_upper (std::string s);
+extern void start_of_thread (std::string name);
template <class T>
std::list<T>