Re: Anyone built Emacs with gcc-3.3?

[Dave Love <d.love@dl.ac.uk>]

"Marshall, Simon" <simon.marshall@misys.com> writes:

> I've tried to build emacs-21.3 and 21.1.90 with gcc-3.3 on solaris-2.8
> but without success.  Emacs builds but coredumps on exit, see bug #11386
> at GCC Bugzilla via http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11386.

That suggests it is dependent on data size.  I've seen similar
behaviour on Tru64 which was related to the use of mmap if I remember
correctly and never got resolved.  Also if I remember correctly, handa
had a similar problem on Solaris and resolved it on the basis of what
I said about the Tru64 problem, but I don't recall how.

For what it's worth, Emacs 21.3 appears to work on sparc64 with the
gcc pre-3.3.1 in Debian testing.

unexec problems are likely with a new gcc on ELF platforms.  To
investigate, I would run objdump or elfdump (?) on temacs versions
that work and don't work, looking for unexpected sections.  (You want
whatever option lists all the section headers.)  That might suggest
other things that need to be copied, for instance.  [In case that
turns out to be the case, let me say again that undumping should be
dumped.]

At one time, building Emacs was part of the regression testing for
gcc.  If that's been dropped, it seems like a backward move.