[SPARC] Segfault when resolving STT_GNU_IFUNC functions

[David Miller]

From: Aurelien Jarno <aurelien@aurel32.net>
Date: Wed, 29 Jun 2011 12:57:47 +0200

> I actually just found regression on non-sparc, for architectures not
> using multiarch. They fail to build given elf_ifunc_invoke() is not
> defined.
> 
> The patch below fixes the problem. Tested on ia64 and s390.

Thanks for fixing this, I've added your patch to the tree.