bug#45443: 28.0.50; Can't find definition of compilation--message->loc

[Andrea Corallo]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Daniel Martín <mardani29@yahoo.es>
>> Cc: Eli Zaretskii <eliz@gnu.org>,  rms@gnu.org,  45443@debbugs.gnu.org
>> Date: Sun, 27 Dec 2020 01:51:29 +0100
>> 
>> One possible approach is, if the regular expression code fails to find a
>> location, we can fall back to expand macros until we find the definition
>> (a defalias in the case of a function, or a defvar in the case of a
>> variable), or we reach the end of the file.
>
> Why do we need to expand macros? isn't it enough to find the defstruct
> itself, by looking for a partial match?

I haven't look at the patch, but I think the approach of macro expanding
is more general as should be able to track any function definition that
is synthesized by any macro.

  Andrea