commit ab4ef4421f85ea7afeb482ded51003658b08de7e
Author: Gabi Falk <gabifalk@gmx.com>
Date:   Tue May 7 18:25:00 2024 +0000

    x86_64: Fix missing wcsncat function definition without multiarch (x86-64-v4)
    
    This code expects the WCSCAT preprocessor macro to be predefined in case
    the evex implementation of the function should be defined with a name
    different from __wcsncat_evex.  However, when glibc is built for
    x86-64-v4 without multiarch support, sysdeps/x86_64/wcsncat.S defines
    WCSNCAT variable instead of WCSCAT to build it as wcsncat.  Rename the
    variable to WCSNCAT, as it is actually a better naming choice for the
    variable in this case.
    
    Reported-by: Kenton Groombridge
    Link: https://bugs.gentoo.org/921945
    Fixes: 64b8b6516b ("x86: Add evex optimized functions for the wchar_t strcpy family")
    Signed-off-by: Gabi Falk <gabifalk@gmx.com>
    Reviewed-by: Sunil K Pandey <skpgkp2@gmail.com>
    (cherry picked from commit dd5f891c1ad9f1b43b9db93afe2a55cbb7a6194e)

diff --git a/sysdeps/x86_64/multiarch/wcsncat-evex.S b/sysdeps/x86_64/multiarch/wcsncat-evex.S
index 392215950afd56be..10bfb0a5314130cf 100644
--- a/sysdeps/x86_64/multiarch/wcsncat-evex.S
+++ b/sysdeps/x86_64/multiarch/wcsncat-evex.S
@@ -1,9 +1,9 @@
-#ifndef WCSCAT
-# define WCSCAT	__wcsncat_evex
+#ifndef WCSNCAT
+# define WCSNCAT	__wcsncat_evex
 #endif
 
 #define USE_AS_WCSCPY
 #define USE_AS_STRCAT
 
-#define STRNCAT	WCSCAT
+#define STRNCAT	WCSNCAT
 #include "strncat-evex.S"