Qt: Fix build if QtMultimedia is not installed

src/platform/qt/AudioProcessor.cpp

@@ -5,16 +5,12 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "AudioProcessor.h"
 
-#include "AudioDevice.h"
-
 #ifdef BUILD_SDL
 #include "AudioProcessorSDL.h"
 #else
 #include "AudioProcessorQt.h"
 #endif
 
-#include <QAudioOutput>
-
 extern "C" {
 #include "gba-thread.h"
 }

src/platform/qt/CMakeLists.txt

@@ -30,7 +30,6 @@ if(NOT Qt5OpenGL_FOUND OR NOT Qt5Widgets_FOUND OR NOT OPENGL_FOUND)
 endif()
 
 set(SOURCE_FILES
-	AudioDevice.cpp
 	AudioProcessor.cpp
 	ConfigController.cpp
 	Display.cpp
@@ -56,7 +55,9 @@ qt5_wrap_ui(UI_FILES
 if(BUILD_SDL)
 	list(APPEND SOURCE_FILES AudioProcessorSDL.cpp)
 elseif(Qt5Multimedia_FOUND)
-	list(APPEND SOURCE_FILES AudioProcessorQt.cpp)
+	list(APPEND SOURCE_FILES
+	AudioProcessorQt.cpp
+	AudioDevice.cpp)
 else()
 	message(WARNING "No supported audio modules found")
 	set(BUILD_QT OFF PARENT_SCOPE)

src/platform/qt/Window.h

@@ -6,7 +6,6 @@
 #ifndef QGBA_WINDOW
 #define QGBA_WINDOW
 
-#include <QAudioOutput>
 #include <QDateTime>
 #include <QList>
 #include <QMainWindow>