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-rw-r--r--include/fcntl.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/fcntl.h b/include/fcntl.h
index 7764f1cd62..6080faba3e 100644
--- a/include/fcntl.h
+++ b/include/fcntl.h
@@ -18,4 +18,8 @@ libc_hidden_proto (__open)
extern int __fcntl (int __fd, int __cmd, ...);
libc_hidden_proto (__fcntl)
+/* Helper functions for the various *at functions. For Linux. */
+extern void __atfct_seterrno (int errval, int fd, const char *buf)
+ attribute_hidden;
+
#endif