NIOS II newlib update

Hi all,

I use NIOS II v5.0 + Service Pack 1

This version of NIOS use newlib v1.12.0 but on newlib web site (http://sources.redhat.com/newlib/ (http://sources.redhat.com/newlib/)) there is a new version available (v1.13.0), which contains a number of bug fixes and includes reentrancy additions, optimized iconv support, some thread-safety I/O fixes and new iprintf/iscanf functions.

How can I update newlib version for NIOS II ?

Anybody knows how-to do that ?