libc/glibc: update patchset, add ports patchset

Patchset provided by "Ioannis E. Venetis" <venetis@mail.capsl.udel.edu>
http://sourceware.org/ml/crossgcc/2011-04/msg00072.html
http://sourceware.org/ml/crossgcc/2011-04/msg00073.html

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

 reporter_name="Nye Liu"

 reporter_url="http://sourceware.org/ml/crossgcc/2008-10/msg00046.html"

 reporter_comment=""