Port uClibc patches to 0.9.30.2

Some patches from 0.9.30.1 now applied upstream. The reminder have
been only slightly modified to apply cleanly to the new base.

Signed-off-by: Joachim Nilsson <jocke@vmlinux.org>

 reporter_name="Ioannis E. VENETIS"

 reporter_url="http://sourceware.org/ml/crossgcc/2009-11/msg00109.html"

 reporter_comment=""