diff --git a/SConstruct b/SConstruct
index 64f0234869..1c246f9f66 100644
--- a/SConstruct
+++ b/SConstruct
@@ -37,7 +37,8 @@ opts.AddOptions(
     BoolOption('FFT_ANALYSIS', 'Include FFT analysis window', 0),
     BoolOption('SURFACES', 'Build support for control surfaces', 0),
     BoolOption('DMALLOC', 'Compile and link using the dmalloc library', 0),
-    BoolOption('LIBLO', 'Compile with support for liblo library', 1)
+    BoolOption('LIBLO', 'Compile with support for liblo library', 1),
+    BoolOption('COREAUDIO', 'Compile with Apple\'s CoreAudio library -- UNSTABLE', 0)
 )
 
 #----------------------------------------------------------------------
diff --git a/libs/ardour/SConscript b/libs/ardour/SConscript
index 73137def57..2efaa9b6a2 100644
--- a/libs/ardour/SConscript
+++ b/libs/ardour/SConscript
@@ -175,7 +175,7 @@ if conf.CheckCHeader('sys/vfs.h'):
 if conf.CheckCHeader('/System/Library/Frameworks/CoreMIDI.framework/Headers/CoreMIDI.h'):
     ardour.Append(LINKFLAGS="-framework CoreMIDI")
 
-if conf.CheckCHeader('/System/Library/Frameworks/AudioToolbox.framework/Headers/ExtendedAudioFile.h'):
+if conf.CheckCHeader('/System/Library/Frameworks/AudioToolbox.framework/Headers/ExtendedAudioFile.h') and ardour['COREAUDIO'] == 1:
     ardour.Append(CXXFLAGS="-DHAVE_COREAUDIO")    
     ardour.Append(LINKFLAGS="-framework AudioToolbox")
     #