Configuration patches related to PR #155

[Tom Tromey]

Alex> Richard Emberson <emberson@contact.com> has been courageously
Alex> building and rebuilding gcj/libgcj for the Solaris/x86 platform
Alex> in order to confirm that PR #155 is a thing of the past as far
Alex> as you run the latest and greatest compiler, but some patches in
Alex> the configure system are required in order to build this
Alex> target. I'm asking permission to check these two in on behalf on
Alex> Bryce and Anthony.

Cool, check them in.

T