More comments for including Audacity.h; fix one #ifdef in AudioIO.cpp

src/AudioIO.cpp

@@ -413,8 +413,8 @@ TimeTrack and AudioIOListener and whether the playback is looped.
 
 *//*******************************************************************/
 
-#include "Audacity.h"
-#include "AudioIO.h" // for USE_* macros
+#include "Audacity.h" // for USE_* macros
+#include "AudioIO.h"
 
 #include "Experimental.h"
 
@@ -2677,7 +2677,7 @@ void AudioIO::StopStream()
 
    mPlaybackTracks.clear();
    mCaptureTracks.clear();
-#ifdef HAVE_MIDI
+#ifdef USE_MIDI
    mMidiPlaybackTracks.clear();
 #endif
 

src/DeviceChange.h

@@ -11,7 +11,7 @@
 #ifndef __AUDACITY_DEVICECHANGE_H__
 #define __AUDACITY_DEVICECHANGE_H__
 
-#include "Audacity.h"
+#include "Audacity.h" // for HAVE_LIBUDEV_H
 
 #include "Experimental.h"
 

src/DeviceManager.cpp

@@ -37,7 +37,7 @@
 
 #include "AudioIO.h"
 
-#include "DeviceChange.h"
+#include "DeviceChange.h" // for HAVE_DEVICE_CHANGE
 #include "toolbars/DeviceToolBar.h"
 
 DeviceManager DeviceManager::dm;

src/LabelTrack.cpp

@@ -28,7 +28,7 @@ for drawing different aspects of the label and its text box.
 
 *//*******************************************************************/
 
-#include "Audacity.h"
+#include "Audacity.h" // for HAVE_GTK
 #include "LabelTrack.h"
 
 #include "Experimental.h"

src/TrackArtist.cpp

@@ -38,7 +38,7 @@ audio tracks.
 
 *//*******************************************************************/
 
-#include "Audacity.h" // for USE_* macros
+#include "Audacity.h" // for USE_* macros and HAVE_ALLOCA_H
 #include "TrackArtist.h"
 
 #include "Experimental.h"

src/float_cast.h

@@ -35,7 +35,7 @@
 **		long int lrint  (double x) ;
 */
 
-#include "Audacity.h"
+#include "Audacity.h" // for HAVE_LRINT, HAVE_LRINTF
 
 /*	The presence of the required functions are detected during the configure
 **	process and the values HAVE_LRINT and HAVE_LRINTF are set accordingly in