changes to get cairocanvas branch to build on OS X, with its stupid nil and Rect macros, plus some const_cast<> and unused variable fixes that should really be in master but will have to wait till we rebase master

libs/ardour/graph.cc

@@ -232,7 +232,7 @@ Graph::trigger (GraphNode* n)
 void
 Graph::dec_ref()
 {
-        if (g_atomic_int_dec_and_test (&_finished_refcount)) {
+        if (g_atomic_int_dec_and_test (const_cast<gint*> (&_finished_refcount))) {
 
 		/* We have run all the nodes that are at the `output' end of
 		   the graph, so there is nothing more to do this time around.

libs/ardour/ltc_slave.cc

@@ -588,7 +588,7 @@ LTC_Slave::approximate_current_delta() const
 	if (last_timestamp == 0 || engine_dll_initstate == 0) {
 		snprintf(delta, sizeof(delta), "\u2012\u2012\u2012\u2012");
 	} else if ((monotonic_cnt - last_timestamp) > 2 * frames_per_ltc_frame) {
-		snprintf(delta, sizeof(delta), _("flywheel"));
+		snprintf(delta, sizeof(delta), "%s", _("flywheel"));
 	} else {
 		snprintf(delta, sizeof(delta), "\u0394<span foreground=\"green\" face=\"monospace\" >%s%s%" PRIi64 "</span>sm",
 				LEADINGZERO(abs(current_delta)), PLUSMINUS(-current_delta), abs(current_delta));

libs/ardour/midi_diskstream.cc

@@ -202,8 +202,8 @@ MidiDiskstream::non_realtime_input_change ()
 		seek (_session.transport_frame());
 	}
 
-	g_atomic_int_set(&_frames_pending_write, 0);
-	g_atomic_int_set(&_num_captured_loops, 0);
+	g_atomic_int_set(const_cast<gint*>(&_frames_pending_write), 0);
+	g_atomic_int_set(const_cast<gint*>(&_num_captured_loops), 0);
 }
 
 int
@@ -376,8 +376,8 @@ MidiDiskstream::process (BufferSet& bufs, framepos_t transport_frame, pframes_t
 			}
 			_write_source->mark_write_starting_now(
 				capture_start_frame, capture_captured, loop_length);
-			g_atomic_int_set(&_frames_pending_write, 0);
-			g_atomic_int_set(&_num_captured_loops, 0);
+			g_atomic_int_set(const_cast<gint*>(&_frames_pending_write), 0);
+			g_atomic_int_set(const_cast<gint*>(&_num_captured_loops), 0);
 			was_recording = true;
 		}
 	}
@@ -446,7 +446,7 @@ MidiDiskstream::process (BufferSet& bufs, framepos_t transport_frame, pframes_t
 				break;
 			}
 		}
-		g_atomic_int_add(&_frames_pending_write, nframes);
+		g_atomic_int_add(const_cast<gint*>(&_frames_pending_write), nframes);
 
 		if (buf.size() != 0) {
 			Glib::Threads::Mutex::Lock lm (_gui_feed_buffer_mutex, Glib::Threads::TRY_LOCK);
@@ -785,7 +785,7 @@ MidiDiskstream::do_flush (RunContext /*context*/, bool force_flush)
 		return 0;
 	}
 
-	const framecnt_t total = g_atomic_int_get(&_frames_pending_write);
+	const framecnt_t total = g_atomic_int_get(const_cast<gint*>(&_frames_pending_write));
 
 	if (total == 0 || 
 	    _capture_buf->read_space() == 0 || 
@@ -794,7 +794,7 @@ MidiDiskstream::do_flush (RunContext /*context*/, bool force_flush)
 	}
 
 	/* if there are 2+ chunks of disk i/o possible for
-	   this track, let the caller know so that it can arrange
+	   this track), let the caller know so that it can arrange
 	   for us to be called again, ASAP.
 
 	   if we are forcing a flush, then if there is* any* extra
@@ -820,7 +820,7 @@ MidiDiskstream::do_flush (RunContext /*context*/, bool force_flush)
 			error << string_compose(_("MidiDiskstream %1: cannot write to disk"), id()) << endmsg;
 			return -1;
 		} 
-		g_atomic_int_add(&_frames_pending_write, -to_write);
+		g_atomic_int_add(const_cast<gint*>(&_frames_pending_write), -to_write);
 	}
 
 out:
@@ -1030,7 +1030,7 @@ MidiDiskstream::transport_looped (framepos_t)
 	   the Source and/or entirely after the capture is finished.
 	*/
 	if (was_recording) {
-		g_atomic_int_add(&_num_captured_loops, 1);
+		g_atomic_int_add(const_cast<gint*>(&_num_captured_loops), 1);
 	}
 }
 

libs/canvas/item.cc

@@ -61,8 +61,8 @@ Item::~Item ()
 	}
 }
 
-Rect
-Item::item_to_parent (Rect const & r) const
+ArdourCanvas::Rect
+Item::item_to_parent (ArdourCanvas::Rect const & r) const
 {
 	return r.translate (_position);
 }
@@ -71,8 +71,8 @@ Item::item_to_parent (Rect const & r) const
 void
 Item::set_position (Duple p)
 {
-	boost::optional<Rect> bbox = bounding_box ();
-	boost::optional<Rect> pre_change_parent_bounding_box;
+	boost::optional<ArdourCanvas::Rect> bbox = bounding_box ();
+	boost::optional<ArdourCanvas::Rect> pre_change_parent_bounding_box;
 
 	if (bbox) {
 		pre_change_parent_bounding_box = item_to_parent (bbox.get());
@@ -146,8 +146,8 @@ Item::parent_to_item (Duple const & d) const
 	return d.translate (- _position);
 }
 
-Rect
-Item::parent_to_item (Rect const & d) const
+ArdourCanvas::Rect
+Item::parent_to_item (ArdourCanvas::Rect const & d) const
 {
 	return d.translate (- _position);
 }
@@ -180,7 +180,7 @@ Item::grab_focus ()
 }
 
 /** @return Bounding box in this item's coordinates */
-boost::optional<Rect>
+boost::optional<ArdourCanvas::Rect>
 Item::bounding_box () const
 {
 	if (_bounding_box_dirty) {
@@ -194,7 +194,7 @@ Item::bounding_box () const
 Coord
 Item::height () const 
 {
-	boost::optional<Rect> bb  = bounding_box();
+	boost::optional<ArdourCanvas::Rect> bb  = bounding_box();
 
 	if (bb) {
 		return bb->height ();
@@ -205,7 +205,7 @@ Item::height () const
 Coord
 Item::width () const 
 {
-	boost::optional<Rect> bb = bounding_box().get();
+	boost::optional<ArdourCanvas::Rect> bb = bounding_box().get();
 
 	if (bb) {
 		return bb->width ();
@@ -314,10 +314,10 @@ Item::canvas_to_item (Coord& x, Coord& y) const
 	y = d.y;
 }
 
-Rect
-Item::item_to_canvas (Rect const & area) const
+ArdourCanvas::Rect
+Item::item_to_canvas (ArdourCanvas::Rect const & area) const
 {
-	Rect r = area;
+	ArdourCanvas::Rect r = area;
 	Item const * i = this;
 
 	while (i) {
@@ -337,7 +337,7 @@ Item::set_ignore_events (bool ignore)
 void
 Item::dump (ostream& o) const
 {
-	boost::optional<Rect> bb = bounding_box();
+	boost::optional<ArdourCanvas::Rect> bb = bounding_box();
 
 	o << _canvas->indent() << whatami() << ' ' << this;
 	

libs/pbd/pbd/signals.h

@@ -22,6 +22,11 @@
 
 #include <list>
 #include <map>
+
+#ifdef nil
+#undef nil
+#endif
+
 #include <glibmm/threads.h>
 
 #include <boost/noncopyable.hpp>