[libc] [llvm] [libc][c11] Add stdio.h's rename() function (PR #85068)

[Nick Desaulniers via llvm-commits]

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@@ -0,0 +1,37 @@
+//===-- Linux implementation of rename ------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/stdio/rename.h"
+
+#include "src/__support/OSUtil/syscall.h" // For internal syscall function.
+#include "src/__support/common.h"
+
+#include "src/errno/libc_errno.h"
+#include <fcntl.h>       // For AT_* macros.
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nickdesaulniers wrote:

Please use include/llvm-libc-macros/fcntl-macros.h rather than <fcntl.h>

https://github.com/llvm/llvm-project/pull/85068