bug#46502: 28.0.50; [feature/native-comp] (d3a399dd) native-comp bootstrap failure

[Eli Zaretskii]

> From: Pip Cet <pipcet@gmail.com>
> Date: Sat, 20 Feb 2021 12:03:42 +0000
> Cc: Stefan Monnier <monnier@iro.umontreal.ca>, mwd@md5i.com, 
> 46502@debbugs.gnu.org, 
>       akrl@sdf.org
> 
> > Btw, if you let macroexp.el byte-compile uninterrupted, then rename
> > the .elc file and re-compile the .el file, do you get identical .elc
> > files?
> 
> So what I did is this:
> 
> 1. make
> 2. wait for bootstrap.pdmp to be built
> 3. wait for macroexp.elc and the other files in compile-first to be generated
> 4. interrupt
> 5. rename byte-opt.elc to byte-opt.elc.1
> 6. make
> 7. wait for byte-opt.elc to be rebuilt
> 8. diff
> 
> I saw differences as before.
> 
> Did you want me to rename "macroexp.elc" in step 5?

No, you did TRT.

So the conclusion is that the differences have nothing to do with
interrupting the build, they are caused by some of the COMPILE_FIRST
files being not yet compiled?