[PATCH] Fix boehm-gc crash on s390x

[Tom Tromey]

>>>>> "Hans" == Boehm, Hans <hans.boehm@hp.com> writes:

Hans> I tried a quick -Wall build, and things don't look that bad.
Hans> And it would be good to look at the warnings that did get generated.

Hans> Were you talking about that or -Werror?  I don't see any way to
Hans> use -Werror unless there's a way to override a few specific and
Hans> not easily avoidable warnings.

Yeah, I was thinking just -Wall.  I suppose there is the maintenance
issue of how to tell people which warnings to expect.  Maybe instead
of -Wall we could use the individual -W options and avoid the ones
that give "bad result" for the GC?

Tom