Re: emacs.pdmp not always rebuilt

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: emacs-devel@gnu.org
> Date: Sun, 03 Oct 2021 15:10:53 +0200
> 
> Hm...  perhaps what I'm working on is making the build process bug out
> in a way that's not...  communicated?  I'm working on something in
> subr.el...
> 
> Aha!  That was it.  OK, sorry for the noise -- I was working on a macro
> in subr.el, and that make loading simple.elc fail -- but in a way that's
> not reported?

Yes, see how the loadup'ed list is way too short:

> LC_ALL=C ./temacs -batch  -l loadup --temacs=pdump \
>       --bin-dest /usr/local/bin/ --eln-dest /usr/local/lib/emacs/29.0.50/
> Loading loadup.el (source)...
> Dump mode: pdump
> Using load-path (/home/larsi/src/emacs/trunk/lisp)
> Loading emacs-lisp/byte-run...
> Loading emacs-lisp/backquote...
> Loading subr...
> Loading version...
> Loading widget...
> Loading custom...
> Loading emacs-lisp/map-ynp...
> Loading international/mule...
> Loading international/mule-conf...
> Loading env...
> Loading format...
> Loading bindings...
> Loading window...
> Loading files...
> Loading emacs-lisp/macroexp...
> Loading cus-face...
> Loading faces...
> Loading loaddefs.el (source)...
> Loading button...
> Loading emacs-lisp/nadvice...
> Loading emacs-lisp/cl-preloaded...
> Loading obarray...
> Loading abbrev...
> Loading simple...
> cp -f emacs.pdmp bootstrap-emacs.pdmp 

This means something happened while loading simple.elc

> That sounds like a bug, but...

Yes, it would be good to avoid these "silent failures", they gave me
my share of trouble.