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-rw-r--r--libs/ardour/audioengine.cc3
1 files changed, 3 insertions, 0 deletions
diff --git a/libs/ardour/audioengine.cc b/libs/ardour/audioengine.cc
index 6c9fd442fb..ab99ccbda3 100644
--- a/libs/ardour/audioengine.cc
+++ b/libs/ardour/audioengine.cc
@@ -170,6 +170,9 @@ AudioEngine::buffer_size_change (pframes_t bufsiz)
/** Method called by our ::process_thread when there is work to be done.
* @param nframes Number of frames to process.
*/
+#ifdef __clang__
+__attribute__((annotate("realtime")))
+#endif
int
AudioEngine::process_callback (pframes_t nframes)
{