I've just tried this with glibc 2.16 and get the same problem.
Trying to build glibc2.15 with gcc 4.7 gave a very similar error (Same
'__EI___*' aliased to external symbol '__GI___*' with a different
variable name.

Packaging from
svn://svn.debian.org/pkg-glibc/glibc-package/branches/eglibc-2.16/debian
libc sources from
svn://svn.eglibc.org/branches/eglibc-2_16
(and the aarch64 patch from
http://sourceware.org/ml/libc-alpha/2012-10/msg00007.html munged to
fit debian eglibc layout)

This is now a blocker for the arm64 port, which only has gcc4.7
available and we need a cross-compiler to get started.

Will investigate further.

Wookey
--
Principal hats: Linaro, Emdebian, Wookware, Balloonboard, ARM
http://wookware.org/


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