--- source-old/lib/renameat2.c	2018-02-03 05:41:53.000000000 -0700
+++ source/lib/renameat2.c	2025-11-01 08:39:54.945513820 -0600
@@ -70,6 +70,7 @@
    Obey FLAGS when doing the renaming.  If FLAGS is zero, this
    function is equivalent to renameat (FD1, SRC, FD2, DST).  */
 
+#if !defined(__redox__)
 int
 renameat2 (int fd1, char const *src, int fd2, char const *dst,
            unsigned int flags)
@@ -225,3 +226,4 @@
 
 #endif /* !HAVE_RENAMEAT */
 }
+#endif