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-rw-r--r--libio/iofflush.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libio/iofflush.c b/libio/iofflush.c
index 724ff26..126947a 100644
--- a/libio/iofflush.c
+++ b/libio/iofflush.c
@@ -47,4 +47,8 @@ _IO_fflush (fp)
#ifdef weak_alias
weak_alias (_IO_fflush, fflush)
+
+#ifndef _IO_MTSAFE_IO
+weak_alias (_IO_fflush, fflush_unlocked)
+#endif
#endif