dep: Add cubeb

dep/cubeb/src/cubeb_osx_run_loop.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright © 2014 Mozilla Foundation
+ *
+ * This program is made available under an ISC-style license.  See the
+ * accompanying file LICENSE for details.
+ */
+
+/* On OSX 10.6 and after, the notification callbacks from the audio hardware are
+ * called on the main thread. Setting the kAudioHardwarePropertyRunLoop property
+ * to null tells the OSX to use a separate thread for that.
+ *
+ * This has to be called only once per process, so it is in a separate header
+ * for easy integration in other code bases.  */
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+void cubeb_set_coreaudio_notification_runloop();
+
+#if defined(__cplusplus)
+}
+#endif