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-rw-r--r--libio/iofflush.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libio/iofflush.c b/libio/iofflush.c
index 6f12e9b79a..d1a76ccd4e 100644
--- a/libio/iofflush.c
+++ b/libio/iofflush.c
@@ -53,5 +53,6 @@ weak_alias (_IO_fflush, fflush)
 
 #ifndef _IO_MTSAFE_IO
 weak_alias (_IO_fflush, fflush_unlocked)
+libc_hidden_weak (fflush_unlocked)
 #endif
 #endif