Possible fix for bug #435

I say possible because I can't fully test it as my motherboard
audio device doesn't show up in Windows (don't know why yet).

So, because of that and because this "fix" needs a little discussion
amongst the troops, I've ifdef'd it with EXPERIMENTAL_HAVE_DEVICE_CHANGE
and have disabled it by default.

What is does is it sets up a device change listener and performs an
automatic rescan when a change is detected.  (That's the part that
needs discussion.)

configure

@@ -2813,6 +2813,7 @@ fi
 
 gt_needs="$gt_needs "
 as_fn_append ac_header_list " alloca.h"
+as_fn_append ac_header_list " libudev.h"
 # Check that the precious variables saved in the cache have kept the same
 # value.
 ac_cache_corrupted=false
@@ -23541,6 +23542,10 @@ $as_echo "#define _FILE_OFFSET_BITS 32" >>confdefs.h
    *)
             CONFIGHEADER="configunix.h"
 
+
+
+
+
             { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlopen" >&5
 $as_echo_n "checking for library containing dlopen... " >&6; }
 if ${ac_cv_search_dlopen+:} false; then :
@@ -24040,6 +24045,48 @@ _ACEOF
 fi
 done
 
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for udev_new in -ludev" >&5
+$as_echo_n "checking for udev_new in -ludev... " >&6; }
+if ${ac_cv_lib_udev_udev_new+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ludev  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char udev_new ();
+int
+main ()
+{
+return udev_new ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_cv_lib_udev_udev_new=yes
+else
+  ac_cv_lib_udev_udev_new=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_udev_udev_new" >&5
+$as_echo "$ac_cv_lib_udev_udev_new" >&6; }
+if test "x$ac_cv_lib_udev_udev_new" = xyes; then :
+  udev_libs=" -ludev"
+fi
+
+      LIBS="${LIBS}${udev_libs}"
       ;;
 esac
 

configure.ac

@@ -606,6 +606,8 @@ case "${host_os}" in
       dnl Unix configuration
       CONFIGHEADER="configunix.h"
 
+      AC_CHECK_HEADERS_ONCE(libudev.h)
+
       dnl On Unix we always use dlopen
       AC_SEARCH_LIBS([dlopen], [dl])
       if [[ "$ac_cv_search_dlopen" = no ]]; then
@@ -657,6 +659,9 @@ case "${host_os}" in
       AC_CHECK_LIB(rt, clock_gettime, [rt_libs=" -lrt"])
       LIBS="${LIBS}${rt_libs}"
       AC_CHECK_FUNCS([clock_gettime nanosleep])
+
+      AC_CHECK_LIB(udev, udev_new, [udev_libs=" -ludev"])
+      LIBS="${LIBS}${udev_libs}"
       ;;
 esac
 

mac/Audacity.xcodeproj/project.pbxproj

@@ -937,6 +937,7 @@
 		28BD8AB4101DF4C700686679 /* GetAllMenuCommands.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 28BD8AAE101DF4C600686679 /* GetAllMenuCommands.cpp */; };
 		28C3946D1818356800FDDAC9 /* AudacityLogger.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 28C3946B1818356800FDDAC9 /* AudacityLogger.cpp */; };
 		28CCDD000F939FD70081F2FC /* FileHistory.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 28CCDCFF0F939FD70081F2FC /* FileHistory.cpp */; };
+		28D000A51A32920C00367B21 /* DeviceChange.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 28D000A31A32920C00367B21 /* DeviceChange.cpp */; };
 		28D540050FD1912A00FA7C75 /* AppCommandEvent.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 28D53FFA0FD1912A00FA7C75 /* AppCommandEvent.cpp */; };
 		28D540060FD1912A00FA7C75 /* CommandBuilder.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 28D53FFE0FD1912A00FA7C75 /* CommandBuilder.cpp */; };
 		28D540070FD1912A00FA7C75 /* CommandHandler.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 28D540000FD1912A00FA7C75 /* CommandHandler.cpp */; };
@@ -3697,6 +3698,8 @@
 		28C3946C1818356800FDDAC9 /* AudacityLogger.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AudacityLogger.h; sourceTree = "<group>"; };
 		28CCDCFF0F939FD70081F2FC /* FileHistory.cpp */ = {isa = PBXFileReference; fileEncoding = 5; indentWidth = 3; lastKnownFileType = sourcecode.cpp.cpp; path = FileHistory.cpp; sourceTree = "<group>"; tabWidth = 3; };
 		28CCDD040F93A0B20081F2FC /* FileHistory.h */ = {isa = PBXFileReference; fileEncoding = 5; indentWidth = 3; lastKnownFileType = sourcecode.c.h; path = FileHistory.h; sourceTree = "<group>"; tabWidth = 3; };
+		28D000A31A32920C00367B21 /* DeviceChange.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = DeviceChange.cpp; sourceTree = "<group>"; };
+		28D000A41A32920C00367B21 /* DeviceChange.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DeviceChange.h; sourceTree = "<group>"; };
 		28D53FFA0FD1912A00FA7C75 /* AppCommandEvent.cpp */ = {isa = PBXFileReference; fileEncoding = 5; indentWidth = 3; lastKnownFileType = sourcecode.cpp.cpp; path = AppCommandEvent.cpp; sourceTree = "<group>"; tabWidth = 3; };
 		28D53FFB0FD1912A00FA7C75 /* AppCommandEvent.h */ = {isa = PBXFileReference; fileEncoding = 5; indentWidth = 3; lastKnownFileType = sourcecode.c.h; path = AppCommandEvent.h; sourceTree = "<group>"; tabWidth = 3; };
 		28D53FFC0FD1912A00FA7C75 /* BatchEvalCommand.h */ = {isa = PBXFileReference; fileEncoding = 5; indentWidth = 3; lastKnownFileType = sourcecode.c.h; path = BatchEvalCommand.h; sourceTree = "<group>"; tabWidth = 3; };
@@ -4961,7 +4964,6 @@
 		1790AFC409883BFD008A330A /* src */ = {
 			isa = PBXGroup;
 			children = (
-				28F996D91A2A9261008FEEF3 /* AudioIOListener.h */,
 				1790AFDC09883BFD008A330A /* blockfile */,
 				174D9025098C78AF00D5909F /* commands */,
 				1790AFFD09883BFD008A330A /* effects */,
@@ -4985,6 +4987,7 @@
 				28C3946C1818356800FDDAC9 /* AudacityLogger.h */,
 				1790AFD209883BFD008A330A /* AudioIO.cpp */,
 				1790AFD309883BFD008A330A /* AudioIO.h */,
+				28F996D91A2A9261008FEEF3 /* AudioIOListener.h */,
 				28560C8F0A75E40F00A3429E /* AutoRecovery.cpp */,
 				28560C900A75E40F00A3429E /* AutoRecovery.h */,
 				1790AFD409883BFD008A330A /* BatchCommandDialog.cpp */,
@@ -5003,6 +5006,8 @@
 				1790AFF509883BFD008A330A /* CrossFade.h */,
 				2849B4600A7444BE00ECF12D /* Dependencies.cpp */,
 				2849B4610A7444BE00ECF12D /* Dependencies.h */,
+				28D000A31A32920C00367B21 /* DeviceChange.cpp */,
+				28D000A41A32920C00367B21 /* DeviceChange.h */,
 				8484F31213086237002DF7F0 /* DeviceManager.cpp */,
 				8484F31313086237002DF7F0 /* DeviceManager.h */,
 				1790AFF709883BFD008A330A /* DirManager.cpp */,
@@ -9155,6 +9160,7 @@
 				28001B4B1A0F0EB6007DD161 /* SpectralSelectionBar.cpp in Sources */,
 				28BB98051A15BE6800D1CC80 /* NoiseReduction.cpp in Sources */,
 				28285C801A27A81600BC2205 /* AudioUnitCocoaHelper.mm in Sources */,
+				28D000A51A32920C00367B21 /* DeviceChange.cpp in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

src/DeviceManager.cpp

@@ -33,6 +33,7 @@
 
 #include "AudioIO.h"
 
+#include "DeviceChange.h"
 #include "DeviceManager.h"
 #include "toolbars/DeviceToolBar.h"
 
@@ -311,6 +312,11 @@ void DeviceManager::Rescan()
 
 //private constructor - Singleton.
 DeviceManager::DeviceManager()
+#if defined(EXPERIMENTAL_DEVICE_CHANGE_HANDLER)
+#if defined(HAVE_DEVICE_CHANGE)
+:  DeviceChangeHandler()
+#endif
+#endif
 {
    m_inited = false;
 }
@@ -323,4 +329,20 @@ DeviceManager::~DeviceManager()
 void DeviceManager::Init()
 {
     Rescan();
+
+#if defined(EXPERIMENTAL_DEVICE_CHANGE_HANDLER)
+#if defined(HAVE_DEVICE_CHANGE)
+   DeviceChangeHandler::Enable(true);
+#endif
+#endif
 }
+
+#if defined(EXPERIMENTAL_DEVICE_CHANGE_HANDLER)
+#if defined(HAVE_DEVICE_CHANGE)
+void DeviceManager::DeviceChangeNotification()
+{
+   Rescan();
+   return;
+}
+#endif
+#endif

src/DeviceManager.h

@@ -21,6 +21,10 @@
 #include <vector>
 #include "wx/wx.h"
 
+#if defined(EXPERIMENTAL_DEVICE_CHANGE_HANDLER)
+#include "DeviceChange.h"
+#endif
+
 typedef struct DeviceSourceMap {
    int deviceIndex;
    int sourceIndex;
@@ -35,6 +39,11 @@ typedef struct DeviceSourceMap {
 wxString MakeDeviceSourceString(const DeviceSourceMap *map);
 
 class DeviceManager
+#if defined(EXPERIMENTAL_DEVICE_CHANGE_HANDLER)
+#if defined(HAVE_DEVICE_CHANGE)
+:  public DeviceChangeHandler
+#endif
+#endif
 {
  public:
    /// Gets the singleton instance
@@ -53,7 +62,14 @@ class DeviceManager
    const std::vector<DeviceSourceMap> &GetInputDeviceMaps();
    const std::vector<DeviceSourceMap> &GetOutputDeviceMaps();
 
-  protected:
+#if defined(EXPERIMENTAL_DEVICE_CHANGE_HANDLER)
+#if defined(HAVE_DEVICE_CHANGE)
+   // DeviceChangeHandler implementation
+   void DeviceChangeNotification();
+#endif
+#endif
+
+ protected:
    //private constructor - Singleton.
    DeviceManager();
    virtual ~DeviceManager();

src/Experimental.h

@@ -191,6 +191,8 @@
 // Define to make the meters look like a row of LEDs
 //#define EXPERIMENTAL_METER_LED_STYLE
 
+// Define to enable the device change handler
+//#define EXPERIMENTAL_DEVICE_CHANGE_HANDLER
 
 // Define for new noise reduction effect from Paul Licameli.
 #define EXPERIMENTAL_NOISE_REDUCTION

src/Makefile.am

@@ -116,6 +116,8 @@ audacity_SOURCES = \
 	CaptureEvents.h \
 	Dependencies.cpp \
 	Dependencies.h \
+	DeviceChange.cpp \
+	DeviceChange.h \
 	DeviceManager.cpp \
 	DeviceManager.h \
 	Envelope.cpp \

src/Makefile.in

@@ -287,18 +287,19 @@ am__audacity_SOURCES_DIST = BlockFile.cpp BlockFile.h DirManager.cpp \
 	BatchCommandDialog.h BatchCommands.cpp BatchCommands.h \
 	BatchProcessDialog.cpp BatchProcessDialog.h Benchmark.cpp \
 	Benchmark.h CaptureEvents.cpp CaptureEvents.h Dependencies.cpp \
-	Dependencies.h DeviceManager.cpp DeviceManager.h Envelope.cpp \
+	Dependencies.h DeviceChange.cpp DeviceChange.h \
-	Envelope.h Experimental.h FFmpeg.cpp FFmpeg.h FFT.cpp FFT.h \
+	DeviceManager.cpp DeviceManager.h Envelope.cpp Envelope.h \
-	FileIO.cpp FileIO.h FileNames.cpp FileNames.h float_cast.h \
+	Experimental.h FFmpeg.cpp FFmpeg.h FFT.cpp FFT.h FileIO.cpp \
-	FreqWindow.cpp FreqWindow.h HelpText.cpp HelpText.h \
+	FileIO.h FileNames.cpp FileNames.h float_cast.h FreqWindow.cpp \
-	HistoryWindow.cpp HistoryWindow.h ImageManipulation.cpp \
+	FreqWindow.h HelpText.cpp HelpText.h HistoryWindow.cpp \
-	ImageManipulation.h InterpolateAudio.cpp InterpolateAudio.h \
+	HistoryWindow.h ImageManipulation.cpp ImageManipulation.h \
-	LabelDialog.cpp LabelDialog.h LabelTrack.cpp LabelTrack.h \
+	InterpolateAudio.cpp InterpolateAudio.h LabelDialog.cpp \
-	LangChoice.cpp LangChoice.h Languages.cpp Languages.h \
+	LabelDialog.h LabelTrack.cpp LabelTrack.h LangChoice.cpp \
-	Legacy.cpp Legacy.h Lyrics.cpp Lyrics.h LyricsWindow.cpp \
+	LangChoice.h Languages.cpp Languages.h Legacy.cpp Legacy.h \
-	LyricsWindow.h MacroMagic.h Matrix.cpp Matrix.h Menus.cpp \
+	Lyrics.cpp Lyrics.h LyricsWindow.cpp LyricsWindow.h \
-	Menus.h Mix.cpp Mix.h MixerBoard.cpp MixerBoard.h \
+	MacroMagic.h Matrix.cpp Matrix.h Menus.cpp Menus.h Mix.cpp \
-	ModuleManager.cpp ModuleManager.h PitchName.cpp PitchName.h \
+	Mix.h MixerBoard.cpp MixerBoard.h ModuleManager.cpp \
+	ModuleManager.h PitchName.cpp PitchName.h \
 	PlatformCompatibility.cpp PlatformCompatibility.h \
 	PluginManager.cpp PluginManager.h Printing.cpp Printing.h \
 	Profiler.cpp Profiler.h Project.cpp Project.h RealFFTf.cpp \
@@ -525,6 +526,7 @@ am_audacity_OBJECTS = $(am__objects_1) audacity-AboutDialog.$(OBJEXT) \
 	audacity-BatchProcessDialog.$(OBJEXT) \
 	audacity-Benchmark.$(OBJEXT) audacity-CaptureEvents.$(OBJEXT) \
 	audacity-Dependencies.$(OBJEXT) \
+	audacity-DeviceChange.$(OBJEXT) \
 	audacity-DeviceManager.$(OBJEXT) audacity-Envelope.$(OBJEXT) \
 	audacity-FFmpeg.$(OBJEXT) audacity-FFT.$(OBJEXT) \
 	audacity-FileIO.$(OBJEXT) audacity-FileNames.$(OBJEXT) \
@@ -1154,18 +1156,19 @@ audacity_SOURCES = $(libaudacity_la_SOURCES) AboutDialog.cpp \
 	BatchCommandDialog.h BatchCommands.cpp BatchCommands.h \
 	BatchProcessDialog.cpp BatchProcessDialog.h Benchmark.cpp \
 	Benchmark.h CaptureEvents.cpp CaptureEvents.h Dependencies.cpp \
-	Dependencies.h DeviceManager.cpp DeviceManager.h Envelope.cpp \
+	Dependencies.h DeviceChange.cpp DeviceChange.h \
-	Envelope.h Experimental.h FFmpeg.cpp FFmpeg.h FFT.cpp FFT.h \
+	DeviceManager.cpp DeviceManager.h Envelope.cpp Envelope.h \
-	FileIO.cpp FileIO.h FileNames.cpp FileNames.h float_cast.h \
+	Experimental.h FFmpeg.cpp FFmpeg.h FFT.cpp FFT.h FileIO.cpp \
-	FreqWindow.cpp FreqWindow.h HelpText.cpp HelpText.h \
+	FileIO.h FileNames.cpp FileNames.h float_cast.h FreqWindow.cpp \
-	HistoryWindow.cpp HistoryWindow.h ImageManipulation.cpp \
+	FreqWindow.h HelpText.cpp HelpText.h HistoryWindow.cpp \
-	ImageManipulation.h InterpolateAudio.cpp InterpolateAudio.h \
+	HistoryWindow.h ImageManipulation.cpp ImageManipulation.h \
-	LabelDialog.cpp LabelDialog.h LabelTrack.cpp LabelTrack.h \
+	InterpolateAudio.cpp InterpolateAudio.h LabelDialog.cpp \
-	LangChoice.cpp LangChoice.h Languages.cpp Languages.h \
+	LabelDialog.h LabelTrack.cpp LabelTrack.h LangChoice.cpp \
-	Legacy.cpp Legacy.h Lyrics.cpp Lyrics.h LyricsWindow.cpp \
+	LangChoice.h Languages.cpp Languages.h Legacy.cpp Legacy.h \
-	LyricsWindow.h MacroMagic.h Matrix.cpp Matrix.h Menus.cpp \
+	Lyrics.cpp Lyrics.h LyricsWindow.cpp LyricsWindow.h \
-	Menus.h Mix.cpp Mix.h MixerBoard.cpp MixerBoard.h \
+	MacroMagic.h Matrix.cpp Matrix.h Menus.cpp Menus.h Mix.cpp \
-	ModuleManager.cpp ModuleManager.h PitchName.cpp PitchName.h \
+	Mix.h MixerBoard.cpp MixerBoard.h ModuleManager.cpp \
+	ModuleManager.h PitchName.cpp PitchName.h \
 	PlatformCompatibility.cpp PlatformCompatibility.h \
 	PluginManager.cpp PluginManager.h Printing.cpp Printing.h \
 	Profiler.cpp Profiler.h Project.cpp Project.h RealFFTf.cpp \
@@ -1984,6 +1987,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/audacity-BlockFile.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/audacity-CaptureEvents.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/audacity-Dependencies.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/audacity-DeviceChange.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/audacity-DeviceManager.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/audacity-DirManager.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/audacity-Dither.Po@am__quote@
@@ -2772,6 +2776,20 @@ audacity-Dependencies.obj: Dependencies.cpp
 @AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
 @am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(audacity_CPPFLAGS) $(CPPFLAGS) $(audacity_CXXFLAGS) $(CXXFLAGS) -c -o audacity-Dependencies.obj `if test -f 'Dependencies.cpp'; then $(CYGPATH_W) 'Dependencies.cpp'; else $(CYGPATH_W) '$(srcdir)/Dependencies.cpp'; fi`
 
+audacity-DeviceChange.o: DeviceChange.cpp
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(audacity_CPPFLAGS) $(CPPFLAGS) $(audacity_CXXFLAGS) $(CXXFLAGS) -MT audacity-DeviceChange.o -MD -MP -MF $(DEPDIR)/audacity-DeviceChange.Tpo -c -o audacity-DeviceChange.o `test -f 'DeviceChange.cpp' || echo '$(srcdir)/'`DeviceChange.cpp
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/audacity-DeviceChange.Tpo $(DEPDIR)/audacity-DeviceChange.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='DeviceChange.cpp' object='audacity-DeviceChange.o' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(audacity_CPPFLAGS) $(CPPFLAGS) $(audacity_CXXFLAGS) $(CXXFLAGS) -c -o audacity-DeviceChange.o `test -f 'DeviceChange.cpp' || echo '$(srcdir)/'`DeviceChange.cpp
+
+audacity-DeviceChange.obj: DeviceChange.cpp
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(audacity_CPPFLAGS) $(CPPFLAGS) $(audacity_CXXFLAGS) $(CXXFLAGS) -MT audacity-DeviceChange.obj -MD -MP -MF $(DEPDIR)/audacity-DeviceChange.Tpo -c -o audacity-DeviceChange.obj `if test -f 'DeviceChange.cpp'; then $(CYGPATH_W) 'DeviceChange.cpp'; else $(CYGPATH_W) '$(srcdir)/DeviceChange.cpp'; fi`
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/audacity-DeviceChange.Tpo $(DEPDIR)/audacity-DeviceChange.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='DeviceChange.cpp' object='audacity-DeviceChange.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(audacity_CPPFLAGS) $(CPPFLAGS) $(audacity_CXXFLAGS) $(CXXFLAGS) -c -o audacity-DeviceChange.obj `if test -f 'DeviceChange.cpp'; then $(CYGPATH_W) 'DeviceChange.cpp'; else $(CYGPATH_W) '$(srcdir)/DeviceChange.cpp'; fi`
+
 audacity-DeviceManager.o: DeviceManager.cpp
 @am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(audacity_CPPFLAGS) $(CPPFLAGS) $(audacity_CXXFLAGS) $(CXXFLAGS) -MT audacity-DeviceManager.o -MD -MP -MF $(DEPDIR)/audacity-DeviceManager.Tpo -c -o audacity-DeviceManager.o `test -f 'DeviceManager.cpp' || echo '$(srcdir)/'`DeviceManager.cpp
 @am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/audacity-DeviceManager.Tpo $(DEPDIR)/audacity-DeviceManager.Po

src/configtemplate.h

@@ -53,6 +53,9 @@
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
+/* Define to 1 if you have the <libudev.h> header file. */
+#undef HAVE_LIBUDEV_H
+
 /* Define if you have C99's lrint function. */
 #undef HAVE_LRINT
 

win/Projects/Audacity/Audacity.vcxproj

@@ -244,6 +244,7 @@
     <ClCompile Include="..\..\..\src\CaptureEvents.cpp" />
     <ClCompile Include="..\..\..\src\commands\OpenSaveCommands.cpp" />
     <ClCompile Include="..\..\..\src\Dependencies.cpp" />
+    <ClCompile Include="..\..\..\src\DeviceChange.cpp" />
     <ClCompile Include="..\..\..\src\DeviceManager.cpp" />
     <ClCompile Include="..\..\..\src\DirManager.cpp" />
     <ClCompile Include="..\..\..\src\Dither.cpp" />
@@ -519,6 +520,7 @@
     <ClInclude Include="..\..\..\src\BlockFile.h" />
     <ClInclude Include="..\..\..\src\CaptureEvents.h" />
     <ClInclude Include="..\..\..\src\commands\OpenSaveCommands.h" />
+    <ClInclude Include="..\..\..\src\DeviceChange.h" />
     <ClInclude Include="..\..\..\src\effects\EffectRack.h" />
     <ClInclude Include="..\..\..\src\effects\NoiseReduction.h" />
     <ClInclude Include="..\..\..\src\effects\Phaser.h" />

win/Projects/Audacity/Audacity.vcxproj.filters

@@ -834,6 +834,9 @@
     <ClCompile Include="..\..\..\src\effects\NoiseReduction.cpp">
       <Filter>src/effects</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\DeviceChange.cpp">
+      <Filter>src</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\..\src\AboutDialog.h">
@@ -1661,7 +1664,12 @@
     <ClInclude Include="..\..\..\src\effects\NoiseReduction.h">
       <Filter>src/effects</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\src\AudioIOListener.h" />
+    <ClInclude Include="..\..\..\src\DeviceChange.h">
+      <Filter>src</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\AudioIOListener.h">
+      <Filter>src</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Image Include="..\..\audacity.ico">