the great onceification (gui)

Replace use of #ifndef header guards with #pragma once

Modern C++, baby!

gtk2_ardour/about.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_about_h__
+#pragma once
-#define __ardour_gtk_about_h__
 
 #include <gtkmm/aboutdialog.h>
 
@@ -39,4 +38,3 @@ private:
 	static void launch_homepage (AboutDialog& about, const Glib::ustring& website_url);
 };
 
-#endif /* __ardour_gtk_about_h__ */

gtk2_ardour/actions.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_actions_h__
+#pragma once
-#define __ardour_gtk_actions_h__
 
 #include <vector>
 
@@ -66,4 +65,3 @@ namespace ActionManager {
 }
 
 
-#endif /* __ardour_gtk_actions_h__ */

gtk2_ardour/add_route_dialog.h

@@ -23,8 +23,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_add_route_dialog_h__
+#pragma once
-#define __gtk_ardour_add_route_dialog_h__
 
 #include <string>
 
@@ -181,4 +180,3 @@ private:
 	void name_template_entry_deletion (int, int);
 };
 
-#endif /* __gtk_ardour_add_route_dialog_h__ */

gtk2_ardour/add_video_dialog.h

@@ -15,8 +15,7 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
-#ifndef __gtk_ardour_add_video_dialog_h__
+#pragma once
-#define __gtk_ardour_add_video_dialog_h__
 
 #include <string>
 
@@ -126,4 +125,3 @@ private:
 	bool loaded_docroot;
 };
 
-#endif /* __gtk_ardour_add_video_dialog_h__ */

gtk2_ardour/ambiguous_file_dialog.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_ambiguous_file_dialog_h__
+#pragma once
-#define __gtk_ardour_ambiguous_file_dialog_h__
 
 #include <gtkmm/radiobutton.h>
 #include "ardour_dialog.h"
@@ -38,4 +37,3 @@ private:
 	bool rb_button_press (GdkEventButton*);
 };
 
-#endif // __gtk_ardour_ambiguous_file_dialog_h__

gtk2_ardour/analysis_window.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_analysis_window_h__
+#pragma once
-#define __ardour_analysis_window_h__
 
 #include <glibmm.h>
 #include <glibmm/refptr.h>
@@ -116,5 +115,3 @@ private:
 	friend class FFTGraph;
 };
 
-#endif // __ardour_analysis_window_h
-

gtk2_ardour/ardour_dialog.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_dialog_h__
+#pragma once
-#define __ardour_dialog_h__
 
 #include <gtkmm/window.h>
 #include <gtkmm/dialog.h>
@@ -67,5 +66,4 @@ private:
 	static sigc::signal<void> CloseAllDialogs;
 };
 
-#endif // __ardour_dialog_h__
 

gtk2_ardour/ardour_http.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_http_h__
+#pragma once
-#define __gtk_ardour_http_h__
 
 #include <curl/curl.h>
 #include <string>
@@ -98,4 +97,3 @@ std::string http_get (const std::string& url, bool with_error_logging);
 
 } // namespace
 
-#endif /* __gtk_ardour_http_h__ */

gtk2_ardour/ardour_ui.h

@@ -30,8 +30,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gui_h__
+#pragma once
-#define __ardour_gui_h__
 
 #include <time.h>
 
@@ -952,4 +951,3 @@ private:
 	PBD::ScopedConnectionList clock_state_connection;
 };
 
-#endif /* __ardour_gui_h__ */

gtk2_ardour/ardour_window.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_window_h__
+#pragma once
-#define __ardour_window_h__
 
 #include <gtkmm/window.h>
 
@@ -54,5 +53,4 @@ private:
 	void init ();
 };
 
-#endif // __ardour_window_h__
 

gtk2_ardour/audio_clip_editor.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __audio_region_trimmer_box_h__
+#pragma once
-#define __audio_region_trimmer_box_h__
 
 #include <map>
 
@@ -221,4 +220,3 @@ private:
 	void zoom_out_click ();
 };
 
-#endif /* __audio_region_trimmer_box_h__ */

gtk2_ardour/audio_clock.h

@@ -23,8 +23,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __audio_clock_h__
+#pragma once
-#define __audio_clock_h__
 
 #include <map>
 #include <vector>
@@ -259,4 +258,3 @@ private:
 	PBD::ScopedConnection tempo_map_connection;
 };
 
-#endif /* __audio_clock_h__ */

gtk2_ardour/audio_region_editor.h

@@ -20,8 +20,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_audio_region_edit_h__
+#pragma once
-#define __gtk_ardour_audio_region_edit_h__
 
 #include <map>
 
@@ -106,4 +105,3 @@ private:
 	CrossThreadChannel _peak_channel;
 };
 
-#endif /* __gtk_ardour_audio_region_edit_h__ */

gtk2_ardour/audio_region_operations_box.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __audio_region_operations_box_h__
+#pragma once
-#define __audio_region_operations_box_h__
 
 #include <map>
 
@@ -72,4 +71,3 @@ private:
 	void normalize_button_clicked();
 };
 
-#endif /* __audio_region_operations_box_h__ */

gtk2_ardour/audio_region_properties_box.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __audio_region_properties_box_h__
+#pragma once
-#define __audio_region_properties_box_h__
 
 #include <map>
 
@@ -88,4 +87,3 @@ private:
 	ArdourWidgets::ArdourButton stretch_selector;
 };
 
-#endif /* __audio_region_properties_box_h__ */

gtk2_ardour/audio_region_view.h

@@ -21,8 +21,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_audio_region_view_h__
+#pragma once
-#define __gtk_ardour_audio_region_view_h__
 
 #ifdef interface
 #undef interface
@@ -253,4 +252,3 @@ private:
 	PBD::ScopedConnection _region_fx_connection;
 };
 
-#endif /* __gtk_ardour_audio_region_view_h__ */

gtk2_ardour/audio_streamview.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_audio_streamview_h__
+#pragma once
-#define __ardour_audio_streamview_h__
 
 #include <cmath>
 #include <list>
@@ -95,4 +94,3 @@ private:
 	bool outline_region;
 };
 
-#endif /* __ardour_audio_streamview_h__ */

gtk2_ardour/audio_time_axis.h

@@ -21,8 +21,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_audio_time_axis_h__
+#pragma once
-#define __ardour_audio_time_axis_h__
 
 #include <gtkmm/table.h>
 #include <gtkmm/button.h>
@@ -97,5 +96,4 @@ private:
 	void update_control_names ();
 };
 
-#endif /* __ardour_audio_time_axis_h__ */
 

gtk2_ardour/automation_controller.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_automation_controller_h__
+#pragma once
-#define __ardour_gtk_automation_controller_h__
 
 #ifdef YES
 #undef YES
@@ -108,4 +107,3 @@ private:
 };
 
 
-#endif /* __ardour_gtk_automation_controller_h__ */

gtk2_ardour/automation_region_view.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_automation_region_view_h__
+#pragma once
-#define __gtk_ardour_automation_region_view_h__
 
 #include "ardour/types.h"
 
@@ -95,4 +94,3 @@ private:
 	PBD::ScopedConnection               _mouse_mode_connection;
 };
 
-#endif /* __gtk_ardour_automation_region_view_h__ */

gtk2_ardour/automation_selection.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_automation_selection_h__
+#pragma once
-#define __ardour_gtk_automation_selection_h__
 
 #include <list>
 
@@ -40,4 +39,3 @@ public:
 	}
 };
 
-#endif /* __ardour_gtk_automation_selection_h__ */

gtk2_ardour/automation_streamview.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_automation_streamview_h__
+#pragma once
-#define __ardour_automation_streamview_h__
 
 #include <list>
 #include <cmath>
@@ -86,4 +85,3 @@ private:
 	ARDOUR::AutoState _pending_automation_state;
 };
 
-#endif /* __ardour_automation_streamview_h__ */

gtk2_ardour/automation_time_axis.h

@@ -23,8 +23,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_automation_time_axis_h__
+#pragma once
-#define __ardour_gtk_automation_time_axis_h__
 
 #include <list>
 #include <memory>
@@ -242,4 +241,3 @@ private:
 	int set_state_2X (const XMLNode &, int);
 };
 
-#endif /* __ardour_gtk_automation_time_axis_h__ */

gtk2_ardour/axis_view.h

@@ -21,8 +21,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_axis_view_h__
+#pragma once
-#define __ardour_gtk_axis_view_h__
 
 #include <list>
 #include <boost/unordered_map.hpp>
@@ -137,4 +136,3 @@ protected:
 	mutable boost::unordered_map<std::string, std::string> property_hashtable;
 }; /* class AxisView */
 
-#endif /* __ardour_gtk_axis_view_h__ */

gtk2_ardour/bbt_marker_dialog.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_bbt_marker_dialog_h__
+#pragma once
-#define __ardour_gtk_bbt_marker_dialog_h__
 
 #include <gtkmm/box.h>
 #include <gtkmm/entry.h>
@@ -57,4 +56,3 @@ private:
 	Gtk::Label      name_label;
 };
 
-#endif /* __ardour_gtk_bbt_marker_dialog_h__ */

gtk2_ardour/big_clock_window.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __bigclock_window_h__
+#pragma once
-#define __bigclock_window_h__
 
 #include "ardour_window.h"
 
@@ -39,5 +38,4 @@ private:
 	bool on_key_press_event (GdkEventKey*);
 };
 
-#endif // __ardour_window_h__
 

gtk2_ardour/bundle_manager.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_ui_bundle_manager_h__
+#pragma once
-#define __ardour_ui_bundle_manager_h__
 
 #include <gtkmm/entry.h>
 #include <gtkmm/liststore.h>
@@ -137,4 +136,3 @@ private:
 	bool _adding;
 };
 
-#endif

gtk2_ardour/clock_group.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_clock_group_h__
+#pragma once
-#define __gtk_ardour_clock_group_h__
 
 #include <set>
 #include <sigc++/signal.h>
@@ -45,4 +44,3 @@ private:
 	void one_clock_changed (AudioClock*);
 };
 
-#endif /* __gtk_ardour_clock_group_h__ */

gtk2_ardour/color_theme_manager.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_color_manager_h__
+#pragma once
-#define __ardour_gtk_color_manager_h__
 
 #include <gtkmm/treeview.h>
 #include <gtkmm/treestore.h>
@@ -164,4 +163,3 @@ private:
 
 };
 
-#endif /* __ardour_gtk_color_manager_h__ */

gtk2_ardour/control_point.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_control_point_h__
+#pragma once
-#define __ardour_control_point_h__
 
 #include <sys/types.h>
 #include <gdk/gdkevents.h>
@@ -104,5 +103,4 @@ private:
 };
 
 
-#endif /* __ardour_control_point_h__ */
 

gtk2_ardour/crossfade_edit.h

@@ -21,8 +21,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_xfade_edit_h__
+#pragma once
-#define __gtk_ardour_xfade_edit_h__
 
 #include <list>
 
@@ -232,4 +231,3 @@ private:
 	void dump ();
 };
 
-#endif /* __gtk_ardour_xfade_edit_h__ */

gtk2_ardour/crossfade_view.h

@@ -20,8 +20,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_crossfade_view_h__
+#pragma once
-#define __gtk_ardour_crossfade_view_h__
 
 #include <vector>
 #include "pbd/signals.h"
@@ -86,4 +85,3 @@ private:
 	void color_handler ();
 };
 
-#endif /* __gtk_ardour_crossfade_view_h__ */

gtk2_ardour/cue_editor.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_cue_editor_h__
+#pragma once
-#define __gtk_ardour_cue_editor_h__
 
 #include "pbd/history_owner.h"
 
@@ -114,4 +113,3 @@ class CueEditor : public EditingContext, public PBD::HistoryOwner, public sigc::
 	void do_redo (uint32_t n);
 };
 
-#endif /* __gtk_ardour_cue_editor_h__ */

gtk2_ardour/cursor_context.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_cursor_context_h__
+#pragma once
-#define __ardour_gtk_cursor_context_h__
 
 #include <memory>
 
@@ -72,4 +71,3 @@ private:
 	CursorContext(EditingContext&, Gdk::Cursor* cursor);
 };
 
-#endif /* __ardour_gtk_cursor_context_h__ */

gtk2_ardour/dsp_stats_window.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_dspstats_window_h__
+#pragma once
-#define __ardour_dspstats_window_h__
 
 
 #include "ardour_window.h"
@@ -41,5 +40,4 @@ private:
 	DspStatisticsGUI* ui;
 };
 
-#endif
 

gtk2_ardour/duplicate_routes_dialog.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_duplicate_route_dialog_h__
+#pragma once
-#define __gtk_ardour_duplicate_route_dialog_h__
 
 #include <gtkmm/entry.h>
 #include <gtkmm/box.h>
@@ -67,4 +66,3 @@ private:
 	Gtk::ComboBoxText insert_at_combo;
 };
 
-#endif /* __gtk_ardour_duplicate_route_dialog_h__ */

gtk2_ardour/editing.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_editing_h__
+#pragma once
-#define __gtk_ardour_editing_h__
 
 #include <string>
 #include <map>
@@ -261,4 +260,3 @@ enum RegionActionTarget {
 
 } // namespace Editing
 
-#endif // __gtk_ardour_editing_h__

gtk2_ardour/editing_context.h

@@ -30,8 +30,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_midi_editing_context_h__
+#pragma once
-#define __ardour_midi_editing_context_h__
 
 #include "pbd/signals.h"
 
@@ -709,4 +708,3 @@ class EditingContext : public ARDOUR::SessionHandlePtr, public AxisViewProvider
 };
 
 
-#endif /* __ardour_midi_editing_context_h__ */

gtk2_ardour/editor.h

@@ -31,8 +31,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_editor_h__
+#pragma once
-#define __ardour_editor_h__
 
 #include <sys/time.h>
 
@@ -2338,4 +2337,3 @@ private:
 	friend class RhythmFerret;
 };
 
-#endif /* __ardour_editor_h__ */

gtk2_ardour/editor_automation_line.h

@@ -23,8 +23,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_automation_line_h__
+#pragma once
-#define __ardour_automation_line_h__
 
 #include <vector>
 #include <list>
@@ -79,5 +78,4 @@ public:
 	virtual bool event_handler (GdkEvent*);
 };
 
-#endif /* __ardour_automation_line_h__ */
 

gtk2_ardour/editor_component.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_editor_component_h__
+#pragma once
-#define __ardour_gtk_editor_component_h__
 
 class Editor;
 
@@ -31,4 +30,3 @@ protected:
 	Editor* _editor;
 };
 
-#endif

gtk2_ardour/editor_cursors.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_editor_cursors_h__
+#pragma once
-#define __gtk_ardour_editor_cursors_h__
 
 #include "pbd/signals.h"
 #include "ardour/types.h"
@@ -62,4 +61,3 @@ private:
 	samplepos_t           _current_sample;
 };
 
-#endif // __gtk_ardour_editor_cursors_h__

gtk2_ardour/editor_group_tabs.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_editor_group_tabs_h__
+#pragma once
-#define __gtk_ardour_editor_group_tabs_h__
 
 #include <gtkmm/menu.h>
 #include "group_tabs.h"
@@ -43,4 +42,3 @@ private:
 	}
 };
 
-#endif // __gtk_ardour_editor_group_tabs_h__

gtk2_ardour/editor_locations.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_editor_locations_h__
+#pragma once
-#define __gtk_ardour_editor_locations_h__
 
 #include "pbd/xml++.h"
 
@@ -50,4 +49,3 @@ private:
 };
 
 
-#endif /* __gtk_ardour_editor_locations_h__ */

gtk2_ardour/editor_regions.h

@@ -19,8 +19,7 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
-#ifndef __gtk_ardour_editor_regions_h__
+#pragma once
-#define __gtk_ardour_editor_regions_h__
 
 #include "editor_component.h"
 #include "region_list_base.h"
@@ -52,4 +51,3 @@ private:
 	void show_context_menu (int button, int time);
 };
 
-#endif /* __gtk_ardour_editor_regions_h__ */

gtk2_ardour/editor_route_groups.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_editor_route_groups_h__
+#pragma once
-#define __gtk_ardour_editor_route_groups_h__
 
 #include <gtkmm/liststore.h>
 #include <gtkmm/scrolledwindow.h>
@@ -101,4 +100,3 @@ private:
 	Gtk::ColorSelectionDialog color_dialog;
 };
 
-#endif // __gtk_ardour_editor_route_groups_h__

gtk2_ardour/editor_section_box.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_section_box_h__
+#pragma once
-#define __gtk_ardour_section_box_h__
 
 #include "ardour/types.h"
 
@@ -38,4 +37,3 @@ private:
 	Editor& _editor;
 };
 
-#endif // __gtk_ardour_editor_cursors_h__

gtk2_ardour/editor_snapshots.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_editor_snapshots_h__
+#pragma once
-#define __gtk_ardour_editor_snapshots_h__
 
 #include "ardour/session_handle.h"
 
@@ -69,4 +68,3 @@ private:
 	void rename (std::string);
 };
 
-#endif // __gtk_ardour_editor_snapshots_h__

gtk2_ardour/editor_sources.h

@@ -15,8 +15,7 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
-#ifndef __gtk_ardour_editor_sources_h__
+#pragma once
-#define __gtk_ardour_editor_sources_h__
 
 #include "editor_component.h"
 #include "source_list_base.h"
@@ -43,4 +42,3 @@ private:
 	void drag_data_received (Glib::RefPtr<Gdk::DragContext> const&, gint, gint, Gtk::SelectionData const&, guint, guint);
 };
 
-#endif

gtk2_ardour/editor_summary.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_editor_summary_h__
+#pragma once
-#define __gtk_ardour_editor_summary_h__
 
 #include "gtkmm2ext/cairo_widget.h"
 #include "editor_component.h"
@@ -137,4 +136,3 @@ private:
 	PBD::ScopedConnectionList region_property_connection;
 };
 
-#endif

gtk2_ardour/enums.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_enums_h__
+#pragma once
-#define __ardour_gtk_enums_h__
 
 #include "ardour/types.h"
 
@@ -56,4 +55,3 @@ enum Height {
 
 extern void setup_gtk_ardour_enums ();
 
-#endif /* __ardour_gtk_enums_h__ */

gtk2_ardour/export_channel_selector.h

@@ -20,8 +20,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __export_channel_selector_h__
+#pragma once
-#define __export_channel_selector_h__
 
 #include <list>
 #include <memory>
@@ -298,4 +297,3 @@ class TrackExportChannelSelector : public ExportChannelSelector
 	bool _syncing_with_manager;
 };
 
-#endif /* __export_channel_selector_h__ */

gtk2_ardour/export_dialog.h

@@ -22,8 +22,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __export_dialog_h__
+#pragma once
-#define __export_dialog_h__
 
 #include <string>
 #include <boost/scoped_ptr.hpp>
@@ -207,4 +206,3 @@ class StemExportDialog : public ExportDialog
 	void init_components ();
 };
 
-#endif /* __ardour_export_dialog_h__ */

gtk2_ardour/export_file_notebook.h

@@ -21,8 +21,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __export_file_notebook_h__
+#pragma once
-#define __export_file_notebook_h__
 
 #include <sigc++/signal.h>
 
@@ -143,4 +142,3 @@ private:
 	};
 };
 
-#endif

gtk2_ardour/export_filename_selector.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __export_filename_selector_h__
+#pragma once
-#define __export_filename_selector_h__
 
 #include <gtkmm/box.h>
 #include <gtkmm/button.h>
@@ -139,4 +138,3 @@ private:
 	bool _require_timespan;
 };
 
-#endif /* __export_filename_selector_h__ */

gtk2_ardour/export_format_dialog.h

@@ -20,8 +20,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __export_format_dialog_h__
+#pragma once
-#define __export_format_dialog_h__
 
 #include "ardour/types.h"
 #include "ardour/export_format_manager.h"
@@ -412,4 +411,3 @@ private:
 
 };
 
-#endif /* __export_format_dialog_h__ */

gtk2_ardour/export_format_selector.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __export_format_selector_h__
+#pragma once
-#define __export_format_selector_h__
 
 #include <memory>
 #include <string>
@@ -94,4 +93,3 @@ private:
 	Gtk::Button new_button;
 };
 
-#endif /* __export_format_selector_h__ */

gtk2_ardour/export_preset_selector.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __export_preset_selector_h__
+#pragma once
-#define __export_preset_selector_h__
 
 #include <sigc++/signal.h>
 
@@ -84,4 +83,3 @@ private:
 	sigc::connection select_connection;
 };
 
-#endif

gtk2_ardour/export_timespan_selector.h

@@ -21,8 +21,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __export_timespan_selector_h__
+#pragma once
-#define __export_timespan_selector_h__
 
 #include <ctime>
 #include <list>
@@ -198,4 +197,3 @@ private:
 	std::string range_id;
 };
 
-#endif /* __export_timespan_selector_h__ */

gtk2_ardour/export_video_dialog.h

@@ -15,8 +15,7 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
-#ifndef __gtk_ardour_export_video_dialog_h__
+#pragma once
-#define __gtk_ardour_export_video_dialog_h__
 
 #include <string>
 
@@ -108,4 +107,3 @@ private:
 	Gtk::CheckButton debug_checkbox;
 };
 
-#endif /* __gtk_ardour_export_video_dialog_h__ */

gtk2_ardour/fft.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_fft_h__
+#pragma once
-#define __ardour_fft_h__
 
 
 #include <iostream>
@@ -72,4 +71,3 @@ private:
 
 }
 
-#endif

gtk2_ardour/floating_text_entry.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __floating_text_entry_h__
+#pragma once
-#define __floating_text_entry_h__
 
 #include <gtkmm/entry.h>
 #include <gtkmm/window.h>
@@ -58,4 +57,3 @@ private:
 	void on_hide ();
 };
 
-#endif // __ardour_window_h__

gtk2_ardour/gain_meter.h

@@ -23,8 +23,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_gain_meter_h__
+#pragma once
-#define __ardour_gtk_gain_meter_h__
 
 #include <vector>
 #include <map>
@@ -264,5 +263,4 @@ class GainMeter : public GainMeterBase, public Gtk::VBox
 	std::vector<ARDOUR::DataType> _types;
 };
 
-#endif /* __ardour_gtk_gain_meter_h__ */
 

gtk2_ardour/ghostregion.h

@@ -22,8 +22,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_ghost_region_h__
+#pragma once
-#define __ardour_gtk_ghost_region_h__
 
 #include <vector>
 
@@ -137,4 +136,3 @@ public:
 	GhostEvent::EventList::iterator _optimization_iterator;
 };
 
-#endif /* __ardour_gtk_ghost_region_h__ */

gtk2_ardour/global_port_matrix.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_global_port_matrix_h__
+#pragma once
-#define __ardour_gtk_global_port_matrix_h__
 
 #include <gtkmm/button.h>
 #include "port_matrix.h"
@@ -68,4 +67,3 @@ private:
 };
 
 
-#endif

gtk2_ardour/grid_lines.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_grid_lines_h__
+#pragma once
-#define __ardour_grid_lines_h__
 
 #include "canvas/line_set.h"
 #include "canvas/ruler.h"
@@ -38,4 +37,3 @@ private:
 	ArdourCanvas::LineSet lines;
 };
 
-#endif /* __ardour_grid_lines_h__ */

gtk2_ardour/group_tabs.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_group_tabs_h__
+#pragma once
-#define __gtk_ardour_group_tabs_h__
 
 #include <gtkmm/menu.h>
 
@@ -184,4 +183,3 @@ private:
 	static std::list<Gdk::Color> _used_colors;
 };
 
-#endif // __gtk_ardour_group_tabs_h__

gtk2_ardour/gui_object.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_gui_object_h__
+#pragma once
-#define __gtk_ardour_gui_object_h__
 
 #include <map>
 #include <string>
@@ -74,4 +73,3 @@ public:
 	std::map <std::string, XMLNode*> object_map;
 };
 
-#endif /* __gtk_ardour_gui_object_h__ */

gtk2_ardour/hit.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_hit_h__
+#pragma once
-#define __gtk_ardour_hit_h__
 
 #include <iostream>
 #include "note_base.h"
@@ -72,4 +71,3 @@ private:
 	ArdourCanvas::Polygon* _polygon;
 };
 
-#endif /* __gtk_ardour_hit_h__ */

gtk2_ardour/idleometer.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_idle_o_meter_h__
+#pragma once
-#define __ardour_idle_o_meter_h__
 
 #include <gtkmm/label.h>
 #include "ardour_dialog.h"
@@ -55,5 +54,4 @@ private:
 	double _var_m, _var_s;
 	sigc::connection _idle_connection;
 };
-#endif
 

gtk2_ardour/input_port_monitor.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_input_port_monitor_h__
+#pragma once
-#define __gtk_ardour_input_port_monitor_h__
 
 #include <gtkmm/box.h>
 #include <gtkmm/alignment.h>
@@ -134,4 +133,3 @@ private:
 	Orientation               _orientation;
 };
 
-#endif

gtk2_ardour/instrument_selector.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_instrument_selector_h__
+#pragma once
-#define __gtk_ardour_instrument_selector_h__
 
 #include <string>
 
@@ -76,4 +75,3 @@ private:
 	PBD::ScopedConnection        _update_connection;
 };
 
-#endif /* __gtk_ardour_instrument_selector_h__ */

gtk2_ardour/interthread_progress_window.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_interthread_progress_window_h__
+#pragma once
-#define __ardour_interthread_progress_window_h__
 
 #include <gtkmm/label.h>
 #include <gtkmm/progressbar.h>
@@ -68,4 +67,3 @@ private:
 	ARDOUR::ImportStatus* _import_status;
 };
 
-#endif

gtk2_ardour/io_selector.h

@@ -20,8 +20,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtkardour_io_selector_h__
+#pragma once
-#define __gtkardour_io_selector_h__
 
 #include "port_matrix.h"
 #include "ardour_window.h"
@@ -88,4 +87,3 @@ class IOSelectorWindow : public ArdourWindow
 	bool wm_delete (GdkEventAny*);
 };
 
-#endif /* __gtkardour_io_selector_h__ */

gtk2_ardour/item_counts.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_item_counts_h__
+#pragma once
-#define __ardour_item_counts_h__
 
 #include <cstddef>
 #include <map>
@@ -80,4 +79,3 @@ private:
 	size_t                              _notes;
 };
 
-#endif /* __ardour_item_counts_h__ */

gtk2_ardour/keyboard.h

@@ -20,8 +20,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_keyboard_h__
+#pragma once
-#define __ardour_keyboard_h__
 
 #include <map>
 #include <string>
@@ -108,4 +107,3 @@ private:
 	void find_bindings_files (std::map<std::string,std::string>& files);
 };
 
-#endif /* __ardour_keyboard_h__ */

gtk2_ardour/keyeditor.h

@@ -18,8 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_key_editor_h__
+#pragma once
-#define __ardour_gtk_key_editor_h__
 
 #include <string>
 
@@ -136,4 +135,3 @@ private:
 	sigc::connection _refresh_connection;
 };
 
-#endif /* __ardour_gtk_key_editor_h__ */

gtk2_ardour/level_meter.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_track_meter_h__
+#pragma once
-#define __ardour_gtk_track_meter_h__
 
 #include <vector>
 
@@ -145,5 +144,4 @@ protected:
 	void mtr_remove(Gtk::Widget &w);
 };
 
-#endif /* __ardour_gtk_track_meter_h__ */
 

gtk2_ardour/location_ui.h

@@ -20,8 +20,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_location_ui_h__
+#pragma once
-#define __ardour_location_ui_h__
 
 #include <gtkmm/box.h>
 #include <gtkmm/checkbutton.h>
@@ -239,4 +238,3 @@ protected:
 	void session_going_away();
 };
 
-#endif // __ardour_location_ui_h__

gtk2_ardour/luainstance.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtkardour_luainstance_h__
+#pragma once
-#define __gtkardour_luainstance_h__
 
 #include <bitset>
 
@@ -191,4 +190,3 @@ private:
 
 };
 
-#endif

gtk2_ardour/luawindow.h

@@ -15,8 +15,7 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
-#ifndef __ardour_luawindow_h__
+#pragma once
-#define __ardour_luawindow_h__
 
 #include <glibmm/thread.h>
 
@@ -140,4 +139,3 @@ private:
 };
 
 
-#endif

gtk2_ardour/lxvst_plugin_ui.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __lxvst_plugin_ui_h__
+#pragma once
-#define __lxvst_plugin_ui_h__
 
 #include "pbd/signals.h"
 #include "vst_plugin_ui.h"
@@ -54,4 +53,3 @@ private:
 
 #endif //LXVST_SUPPORT
 
-#endif

gtk2_ardour/main_clock.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_main_clock_h__
+#pragma once
-#define __gtk_ardour_main_clock_h__
 
 #include "audio_clock.h"
 
@@ -46,4 +45,3 @@ private:
 	ARDOUR::ClockDeltaMode _delta_mode;
 };
 
-#endif // __gtk_ardour_main_clock_h__

gtk2_ardour/marker.h

@@ -21,8 +21,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_marker_h__
+#pragma once
-#define __gtk_ardour_marker_h__
 
 #include <string>
 #include <glib.h>
@@ -248,4 +247,3 @@ class BBTMarker : public MetricMarker
 	MeterMarker* meter_marker;
 };
 
-#endif /* __gtk_ardour_marker_h__ */

gtk2_ardour/marker_selection.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_marker_selection_h__
+#pragma once
-#define __ardour_gtk_marker_selection_h__
 
 #include <list>
 
@@ -30,4 +29,3 @@ class MarkerSelection : public std::list<ArdourMarker*>
 	void range (Temporal::timepos_t& start, Temporal::timepos_t& end);
 };
 
-#endif /* __ardour_gtk_marker_selection_h__ */

gtk2_ardour/meterbridge.h

@@ -16,8 +16,7 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
-#ifndef __ardour_meterbridge_h__
+#pragma once
-#define __ardour_meterbridge_h__
 
 #include <glibmm/thread.h>
 
@@ -156,4 +155,3 @@ private:
 	bool on_configure_event (GdkEventConfigure* conf);
 };
 
-#endif

gtk2_ardour/midi_channel_selector.h

@@ -20,8 +20,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_ui_midi_channel_selector_h__
+#pragma once
-#define __ardour_ui_midi_channel_selector_h__
 
 #include <set>
 #include "sigc++/trackable.h"
@@ -182,4 +181,3 @@ private:
 	void playback_mode_toggled (ARDOUR::ChannelMode);
 };
 
-#endif /*__ardour_ui_midi_channel_selector_h__*/

gtk2_ardour/midi_clip_editor.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __midi_region_trimmer_box_h__
+#pragma once
-#define __midi_region_trimmer_box_h__
 
 #include <map>
 
@@ -74,4 +73,3 @@ private:
 	std::shared_ptr<ARDOUR::Region> _region;
 };
 
-#endif /* __midi_region_trimmer_box_h__ */

gtk2_ardour/midi_cue_editor.h

@@ -16,8 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_midi_cue_editor_h__
+#pragma once
-#define __gtk_ardour_midi_cue_editor_h__
 
 #include <gtkmm/adjustment.h>
 
@@ -205,4 +204,3 @@ class MidiCueEditor : public CueEditor
 };
 
 
-#endif /* __gtk_ardour_midi_cue_editor_h__ */

gtk2_ardour/midi_cue_view.h

@@ -22,8 +22,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_midi_cue_view_h__
+#pragma once
-#define __gtk_ardour_midi_cue_view_h__
 
 #include "midi_view.h"
 
@@ -76,4 +75,3 @@ class MidiCueView : public MidiView
 };
 
 
-#endif /* __gtk_ardour_midi_cue_view_h__ */

gtk2_ardour/midi_cut_buffer.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_midi_cut_buffer_h__
+#pragma once
-#define __gtk_ardour_midi_cut_buffer_h__
 
 #include "temporal/beats.h"
 
@@ -45,4 +44,3 @@ private:
 	TimeType _origin;
 };
 
-#endif /* __gtk_ardour_midi_cut_buffer_h__ */

gtk2_ardour/midi_region_operations_box.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __midi_region_operations_box_h__
+#pragma once
-#define __midi_region_operations_box_h__
 
 #include <map>
 
@@ -63,4 +62,3 @@ private:
 	void transform_button_clicked();
 };
 
-#endif /* __midi_region_operations_box_h__ */

gtk2_ardour/midi_region_properties_box.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __midi_region_properties_box_h__
+#pragma once
-#define __midi_region_properties_box_h__
 
 #include <map>
 
@@ -56,4 +55,3 @@ private:
 	ArdourWidgets::ArdourButton cc_selector_button;
 };
 
-#endif /* __midi_region_properties_box_h__ */

gtk2_ardour/midi_region_view.h

@@ -22,8 +22,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_midi_region_view_h__
+#pragma once
-#define __gtk_ardour_midi_region_view_h__
 
 #include <string>
 #include <vector>
@@ -176,4 +175,3 @@ public:
 };
 
 
-#endif /* __gtk_ardour_midi_region_view_h__ */

gtk2_ardour/midi_selection.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_midi_selection_h__
+#pragma once
-#define __ardour_gtk_midi_selection_h__
 
 #include "region_selection.h"
 
@@ -49,4 +48,3 @@ public:
 	}
 };
 
-#endif /* __ardour_gtk_midi_selection_h__ */

gtk2_ardour/midi_streamview.h

@@ -20,8 +20,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_midi_streamview_h__
+#pragma once
-#define __ardour_midi_streamview_h__
 
 #include <list>
 #include <cmath>
@@ -115,4 +114,3 @@ private:
 	bool _updates_suspended;
 };
 
-#endif /* __ardour_midi_streamview_h__ */

gtk2_ardour/midi_time_axis.h

@@ -21,8 +21,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_midi_time_axis_h__
+#pragma once
-#define __ardour_midi_time_axis_h__
 
 #include <list>
 
@@ -212,4 +211,3 @@ private:
 	PBD::ScopedConnection mouse_mode_connection;
 };
 
-#endif /* __ardour_midi_time_axis_h__ */

gtk2_ardour/midi_tracer.h

@@ -19,8 +19,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __ardour_gtk_midi_tracer_h__
+#pragma once
-#define __ardour_gtk_midi_tracer_h__
 
 #include <atomic>
 
@@ -124,4 +123,3 @@ private:
 	static unsigned int window_count;
 };
 
-#endif /* __ardour_gtk_midi_tracer_h__ */

gtk2_ardour/midi_util.h

@@ -17,8 +17,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_midi_util_h__
+#pragma once
-#define __gtk_ardour_midi_util_h__
 
 inline static void clamp_to_0_127(uint8_t &val)
 {
@@ -29,5 +28,4 @@ inline static void clamp_to_0_127(uint8_t &val)
 	}
 }
 
-#endif /* __gtk_ardour_midi_util_h__ */
 

gtk2_ardour/midi_view.h

@@ -22,8 +22,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef __gtk_ardour_midi_view_h__
+#pragma once
-#define __gtk_ardour_midi_view_h__
 
 #include <string>
 #include <vector>
@@ -643,4 +642,3 @@ class MidiView : public virtual sigc::trackable
 };
 
 
-#endif /* __gtk_ardour_midi_view_h__ */