bug#6031: Emacs 23.1 breaks with gcc 4.5 and -foptimize-sibling-calls

[Dan Nicolaescu]

Ulrich Mueller <ulm@gentoo.org> writes:

> I just want to point out that we observe a very similar issue in
> <http://bugs.gentoo.org/317187>, for the 23.1 release.

Could you please try to find out where exactly the problem is?

You can do a binary search on the object files compiled with the
options that result in a working binary by linking them with the ones
that result in a non-working binary.
Maybe you can find a single file that gets miscompiled, and then 
find out what function in that file gets miscompiled.