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diff --git a/sysdeps/x86_64/wcpncpy-generic.c b/sysdeps/x86_64/wcpncpy-generic.c
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+/* ISA level static dispatch for wcpncpy .c files.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* wcpncpy non-multiarch build is split into two files,
+   wcpncpy-generic.c and wcpncpy.S. The wcpncpy-generic.c build is
+   for ISA level <= 1 and just uses multiarch/wcpncpy-generic.c.
+   This must be split into two files because we cannot include C
+   code from assembly or vice versa.  */
+
+#include <isa-level.h>
+
+#if MINIMUM_X86_ISA_LEVEL <= 3
+
+# include <wcsmbs/wcpncpy.c>
+
+#endif