https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85563
Paul Eggert <eggert at gnu dot org> changed:
What |Removed |Added
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CC| |eggert at gnu dot org
--- Comment #8 from Paul Eggert <eggert at gnu dot org> ---
(In reply to Jakub Jelinek from comment #7)
> Or just rewrite whatever you are doing to something that doesn't suffer from
> this. Say:
> (tail) = Vframe_list;
> while ((frame1 = XCAR (tail), 1))
> {
> body...;
> tail = XCDR (tail);
> if (!CONSP (tail))
> break;
> }
Unfortunately that wouldn't be right, since Vframe_list might be Qnil so the
first XCAR would be invalid.
In Emacs I worked around the problem by adding an unnecessary initialization to
the frame1 variable that GCC was complaining about; see:
https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=65ac27783a959a8339c2aab0f1e54d9b508a1f1f
and look for "GCC bug 85563"; Emacs has an UNINIT macro that is used to pacify
GCC when GCC isn't smart enough to see that a variable does not need to be
initialized.
Anyway, thanks for looking into it.
