bug#24358: 25.1.50; re-search-forward errors with "Variable binding depth exceeds max-specpdl-size"

[Eli Zaretskii]

> From: npostavs@users.sourceforge.net
> Cc: 24358@debbugs.gnu.org,  peder@klingenberg.no
> Date: Sat, 08 Oct 2016 16:55:17 -0400
> 
> > r_alloc_sbrk?  What OS is this?  We only use ralloc.c on a handful of
> > them, as of Emacs 25.
> 
> Uh, it's GNU/Linux (Arch), so not too obscure I would think.

I thought no GNU/Linux system uses ralloc.c, but maybe I was mistaken.

> Where is the decision to use ralloc made?

It was always a fallback, for systems that don't have better ways of
allocating system memory.  MS-Windows was using it until 25.1.

> Maybe something went wrong in my configure?

I guess configure somehow decides that gmalloc.c should be used on
your system (as opposed to the system-provided malloc), and then
ralloc.c is a necessity.  Look in your config.log for any test related
to malloc or something that has "malloc" as its substring.

In any case, this doesn't invalidate the bug, of course.