bug#61847: debug-early-backtrace only works some of the time.

[Eli Zaretskii]

> Date: Wed, 1 Mar 2023 16:05:58 +0000
> Cc: monnier@iro.umontreal.ca, 61847@debbugs.gnu.org
> From: Alan Mackenzie <acm@muc.de>
> 
> My main argument against cl-prin1 is that it's Lisp, and loading Lisp in
> early bootstrap is an uncertain, difficult process, as this bug shows.

My main point, which I evidently fail to drive home, is that we must
do that anyway, if we want these backtraces to show a reasonably
readable information.

> prin1 is _far_ from "infinitely useless".  I've used it to good effect.

Yes, and when I was younger, I used MSDOS to good effect.

> cl-prin1 is not useful for printing compiled functions.

Then let's make it useful!  That's the right direction, not falling
back to prin1.

> How about this suggestion: to fix the bug right now, we put prin1 back
> in, as it was in the original debug-early.el.  When cl-prin1 has
> improved sufficiently, we then consider putting it back into
> debug-early.el?

No.