Re: Building a release tarball generates trampoline files in eln-cache

[Eli Zaretskii]

> Date: Wed, 27 Oct 2021 19:32:30 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: kbrown@cornell.edu, emacs-devel@gnu.org
> 
> > Date: Sun, 17 Oct 2021 08:56:20 +0300
> > From: Eli Zaretskii <eliz@gnu.org>
> > Cc: kbrown@cornell.edu, emacs-devel@gnu.org
> > 
> > > From: Andrea Corallo <akrl@sdf.org>
> > > Cc: kbrown@cornell.edu, emacs-devel@gnu.org
> > > Date: Sat, 16 Oct 2021 20:15:09 +0000
> > > 
> > > > Now the subr--trampoline*.eln files are in the right place, but this
> > > > problem:
> > > >
> > > >>   lisp/emacs-lisp/seq.elc: Error: Symbol’s function definition is 
> > > >> void: gv-setter
> > > >>   lisp/term/xterm.elc: Error: Symbol’s function definition is void: t
> > > >
> > > > still exists.  So something else is amiss here.
> > > 
> > > Okay, I'll have a look into this I guess Monday.
> > 
> > Thanks.
> > 
> > > > Btw, why are these subr--trampoline*.eln files get generated when
> > > > building the tarball, but not when building from Git "normally", where
> > > > the *.eln files are produced by batch-byte+native-compile?  Because I
> > > > don't see any such files that correspond to the build from Git
> > > > anywhere on my system.
> > > 
> > > The obvious answer is that something is either redefining or advising
> > > those primitives.  If it's important to know what and where we can
> > > investigate it, it should not be extremely difficult.
> > 
> > I'm curious why 2 methods of native compilation that are supposed to
> > produce identical results, in reality produce slightly different
> > results: one produces these trampoline files, the other doesn't.  It
> > could be that there's some hidden issue here, perhaps even related to
> > those errors at startup described above.
> 
> Andrea, any progress in investigating this strange problem?  It is
> currently the only hard blocking issue that prevents us from making a
> pretest tarball.

I now have the same problem in the "normal" build with native-comp of
the release branch, the one that builds from Git clone and uses
ELC+ELN to compile all the preloaded files (as opposed to building a
release tarball).  The problem shows at startup:

  $ emacs -Q -nw

This shows errors in the *Compile Log* buffer(??)

  lisp/emacs-lisp/seq.elc: Error: Symbol’s function definition is void: 
gv-setter
  lisp/term/xterm.elc: Error: Symbol’s function definition is void: t

If I delete seq.elc, the problem goes away.

How do I investigate this?