mempcpy change breaks the sparc build

[David Miller]

From: David Miller <davem@davemloft.net>
Date: Thu, 13 Nov 2014 20:40:52 -0500 (EST)

> 
> "Fix stpcpy / mempcpy namespace (bug 17573)." causes the following
> build failure on sparc:
> 
> ../string/mempcpy.c:37:1: error: ‘mempcpy’ aliased to undefined symbol ‘__mempcpy’
> 
> Sparc does:
> 
> sysdeps/sparc/sparc64/rtld-memcpy.c:#include <string/mempcpy.c>
> 
> to avoid the multiarch mempcpy implementation being used in ld.so

I just noticed:

	https://sourceware.org/ml/libc-alpha/2014-11/msg00305.html

and am testing it now.