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

[Eli Zaretskii]

> From: Sam Halliday <sam.halliday@gmail.com>
> Date: Sun, 23 Oct 2016 14:40:26 +0100
> Cc: npostavs@users.sourceforge.net, 24358@debbugs.gnu.org
> 
> ralloc.c is in "src".

What about ralloc.o?

> Running the failing command, the breakpoint didn't take... must be
> something else.

Probably some code calls 'signal' or 'error' directly.  A breakpoint
in Fsignal should catch that.  Unfortunately, it could trigger many
times before, so if that happens, let me know if you need help in
making the breakpoint more selective.

> Processing OKURI-NASI entries ...
> processed 10% ...
> processed 20% ...
> processed 30% ...
> processed 40% ...
> Args out of range: #("七宝焼/" 0 4 (charset japanese-jisx0208)), -5, nil

Note that the error is slightly different now (a different string and
the argument is -5 instead of -6), and also in a slightly different
place of the build (after 40% instead of 20%).