1 files changed, 1 insertions, 0 deletions

diff --git a/src/thread.h b/src/thread.h
index 5746512b799..5ab5e90c70d 100644
--- a/src/thread.h
+++ b/src/thread.h
@@ -303,6 +303,7 @@ extern void init_threads_once (void);
 extern void init_threads (void);
 extern void syms_of_threads (void);
 extern bool main_thread_p (void *);
+extern bool in_current_thread (void);
 
 typedef int select_func (int, fd_set *, fd_set *, fd_set *,
                          const struct timespec *, const sigset_t *);