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-rw-r--r--libs/ardour/audio_playlist.cc4
1 files changed, 4 insertions, 0 deletions
diff --git a/libs/ardour/audio_playlist.cc b/libs/ardour/audio_playlist.cc
index 06f9b3bc65..ebebc62c33 100644
--- a/libs/ardour/audio_playlist.cc
+++ b/libs/ardour/audio_playlist.cc
@@ -186,7 +186,11 @@ AudioPlaylist::read (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, fr
its OK to block (for short intervals).
*/
+#ifdef HAVE_GLIB_THREADS_RECMUTEX
+ Glib::Threads::RecMutex::Lock lm (region_lock);
+#else
Glib::RecMutex::Lock rm (region_lock);
+#endif
/* Find all the regions that are involved in the bit we are reading,
and sort them by descending layer and ascending position.