Unreviewed build, driver patch

[Rainer Orth]

The following patch has remained unreviewed for a week:

        [build] Use -z ignore instead of --as-needed on Solaris
        http://gcc.gnu.org/ml/gcc-patches/2013-04/msg00425.html

It needs build and driver maintainers to review.

Thanks.
        Rainer

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Rainer Orth, Center for Biotechnology, Bielefeld University