2013-07-17  Janis Johnson  <janisjo@codesourcery.com>

        * libc/machine/powerpc/configure.in: Remove extra_sources; fix
        extra_objs for powerpc*-*altivec.
        * libc/machine/powerpc/Makefile.am: Define EXTRA_lib_a_SOURCES.
        * libc/machine/powerpc/configure: Regenerated.
        * libc/machine/powerpc/Makefile.in: Regenerated.