ia64 libjava java-signal.h build failure

[Tom Tromey]

Alexandre> the rest of the development snapshot.  I'm all for
Alexandre> re-enabling it by default.

Mark> I'm not.  It's just too risky at this point.

What do you mean?  What is the risk?

FWIW I've bootstrapped and run `check-target-libjava' for gcc3+java on
x86 Linux, PPC Linux, and Solaris regularly (some more regularly than
others) for the last few weeks.

Tom