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-rw-r--r--sysdeps/posix/dup.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/posix/dup.c b/sysdeps/posix/dup.c
index 9525e76749..abf3ff59dd 100644
--- a/sysdeps/posix/dup.c
+++ b/sysdeps/posix/dup.c
@@ -26,5 +26,5 @@ __dup (int fd)
 {
   return fcntl (fd, F_DUPFD, 0);
 }
-
+libc_hidden_def (__dup)
 weak_alias (__dup, dup)