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-rw-r--r--libs/pbd/pbd/pool.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libs/pbd/pbd/pool.h b/libs/pbd/pbd/pool.h
index 1c9ac81a3e..cfd782a794 100644
--- a/libs/pbd/pbd/pool.h
+++ b/libs/pbd/pbd/pool.h
@@ -128,7 +128,7 @@ class LIBPBD_API PerThreadPool
const Glib::Threads::Private<CrossThreadPool>& key() const { return _key; }
void create_per_thread_pool (std::string name, unsigned long item_size, unsigned long nitems);
- CrossThreadPool* per_thread_pool ();
+ CrossThreadPool* per_thread_pool (bool must_exist = true);
void set_trash (RingBuffer<CrossThreadPool*>* t);
void add_to_trash (CrossThreadPool *);