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-rw-r--r--src/thread/pthread_once.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/thread/pthread_once.c b/src/thread/pthread_once.c
index a8f8aeb1..8e8d40ae 100644
--- a/src/thread/pthread_once.c
+++ b/src/thread/pthread_once.c
@@ -8,7 +8,7 @@ static void undo(void *control)
 		__wake(control, -1, 1);
 }
 
-int __pthread_once_full(pthread_once_t *control, void (*init)(void))
+hidden int __pthread_once_full(pthread_once_t *control, void (*init)(void))
 {
 	/* Try to enter initializing state. Four possibilities:
 	 *  0 - we're the first or the other cancelled; run init