Re: [SPAM UNSURE] Warnings no longer discriminated by compilation-mode

[Manuel Gómez]

Am 12/8/21 um 19:29 schrieb Stephen Leake:
> Manuel Gómez <mgrojo@gmail.com> writes:
>
> > After updating to ada-mode version 7.1.7 from 4.0 (it is the built-in
> > version in Emacs 26.3), I've noticed that warnings emitted by the
> > compiler are no longer colorized differently and the count in the
> > modeline no longer counts them (second number in orange). Everything
> > is considered an error. Even if I call M-x compile and run gprbuild by
> > myself, the compilation-mode acts in the same way; so I suppose it has
> > been set up by ada-mode 7 in some way. Is that intended?
>
> This is controlled by compilation-error-regexp-alist-alist and
> compilation-error-regexp-alist.
>
> ada-mode 7.x does not set these variables for Ada buffers; it does set
> them for gpr-query results.
>
> It may be that ada-mode 4 did set these; you can probably just copy that
> setting into your ~/.emacs.
>
> In my devel system, compilation-error-regexp-alist is set to '(gnat),
> but I can't find where that happens :(.

At least in ada-mode-7.1.7 it is set here:
gnat-core.el:361:  (setq compilation-error-regexp-alist '(gnat))

What I see is that without selecting a project, M-x compile makes the 
distinction. This is the value of compilation-error-regexp-alist after 
starting emacs:

compilation-error-regexp-alist is a variable defined in ‘compile.el’.
Its value is
(absoft ada aix ant bash borland python-tracebacks-and-caml cmake 
cmake-[...]

And after using <menu-bar> <Ada> <Project files> <Find and select
project ...>, M-x compile does no longer sees warnings, and the value of 
the variable is:

compilation-error-regexp-alist is a variable defined in ‘compile.el’.
Its value is (gnat)
Original value was
(gpr-query-ident-file gnat absoft ada aix ant bash borland python-[...]