diff --git a/include/wx/osx/sound.h b/include/wx/osx/sound.h
index f406537927..b395e0ba20 100644
--- a/include/wx/osx/sound.h
+++ b/include/wx/osx/sound.h
@@ -27,19 +27,25 @@ public :
     virtual bool Play(unsigned int flags) = 0;
     // stops the sound and deletes the optional timer
     virtual void Stop();
-    // can be called by a timer for repeated tasks during playback
-    virtual void SoundTask();
     // mark this to be deleted
     virtual void MarkForDeletion();
     virtual bool IsMarkedForDeletion() const { return m_markedForDeletion; }
 
     // does the true work of stopping and cleaning up
     virtual void DoStop() = 0;
+
+#if wxOSX_USE_CARBON
+    // can be called by a timer for repeated tasks during playback
+    virtual void SoundTask();
+
 protected :
     void CreateAndStartTimer();
 
-    unsigned int m_flags;
     wxSoundTimer* m_pTimer;
+#endif // wxOSX_USE_CARBON
+
+protected:
+    unsigned int m_flags;
     bool m_markedForDeletion;
 } ;
 
diff --git a/src/osx/sound_osx.cpp b/src/osx/sound_osx.cpp
index 3a125eded7..950eb5f84b 100644
--- a/src/osx/sound_osx.cpp
+++ b/src/osx/sound_osx.cpp
@@ -20,13 +20,16 @@
     #include "wx/string.h"
     #include "wx/intl.h"
     #include "wx/log.h"
-    #include "wx/timer.h"
 #endif
 
 #include "wx/file.h"
 
 #include "wx/vector.h"
 
+#if wxOSX_USE_CARBON
+
+#include "wx/timer.h"
+
 class wxSoundTimer : public wxTimer
 {
 public:
@@ -52,11 +55,15 @@ protected:
     wxSoundData* m_sound;
 };
 
+#endif // wxOSX_USE_CARBON
+
 wxVector<wxSoundData*> s_soundsPlaying;
 
 wxSoundData::wxSoundData()
 {
+#if wxOSX_USE_CARBON
     m_pTimer = NULL;
+#endif // wxOSX_USE_CARBON
     m_markedForDeletion = false;
 }
 
@@ -72,9 +79,13 @@ void wxSoundData::MarkForDeletion()
 void wxSoundData::Stop()
 {
     DoStop();
+#if wxOSX_USE_CARBON
     wxDELETE(m_pTimer);
+#endif // wxOSX_USE_CARBON
 }
 
+#if wxOSX_USE_CARBON
+
 //Time between timer calls
 #define MOVIE_DELAY 100
 
@@ -89,6 +100,8 @@ void wxSoundData::CreateAndStartTimer()
     m_pTimer->Start(MOVIE_DELAY, wxTIMER_CONTINUOUS);
 }
 
+#endif // wxOSX_USE_CARBON
+
 wxSound::wxSound()
 {
     Init();