I believe this is really just a "documentation" fix.
See https://sourceware.org/ml/binutils/2013-10/msg00059.html
+2013-11-16 Alan Modra <amodra@gmail.com>
+
+ * libc-abis: PowerPC64le has ifunc too.
+
2013-11-16 Alan Modra <amodra@gmail.com>
* sysdeps/unix/sysv/linux/powerpc/configure.in (arch_minimum_kernel):
# Indirect PLT relocations. Architecture dependent.
IFUNC x86_64-*-linux*
IFUNC i?86-*-linux*
-IFUNC powerpc64-*-linux*
-IFUNC powerpc-*-linux*
+IFUNC powerpc*-*-linux*
IFUNC sparc64-*-linux*
IFUNC sparc-*-linux*