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-rw-r--r--libio/clearerr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libio/clearerr.c b/libio/clearerr.c
index 5d29fc500a..77ac552fac 100644
--- a/libio/clearerr.c
+++ b/libio/clearerr.c
@@ -27,6 +27,6 @@ clearerr (FILE *fp)
   _IO_funlockfile (fp);
 }
 
-#if defined weak_alias && !defined _IO_MTSAFE_IO
+#ifndef _IO_MTSAFE_IO
 weak_alias (clearerr, clearerr_unlocked)
 #endif