Re: emacs-30 130c2a13dc7: ; * doc/emacs/building.texi (Compilation Mode): Fix last change.

Re: emacs-30 130c2a13dc7: ; * doc/emacs/building.texi (Compilation Mode): Fix last change.

[Robert Pluim]

>>>>> On Wed,  4 Dec 2024 11:21:45 -0500 (EST), Eli Zaretskii <eliz@gnu.org> said:

    Eli> diff --git a/doc/emacs/building.texi b/doc/emacs/building.texi
    Eli> index 3a3dd1d4461..bebf410f919 100644
    Eli> --- a/doc/emacs/building.texi
    Eli> +++ b/doc/emacs/building.texi
    Eli> @@ -316,7 +316,8 @@ to parse output from a @code{grep} command (@pxref{Grep Searching}).
    Eli>    Sometimes @code{compilation-error-regexp-alist} doesn't correctly
    Eli>  determine the filename that is the source of the error.  Use user option
    Eli>  @code{compilation-transform-file-match-alist} to make any necessary
    Eli> -adjustments, such as adding or changing a directory component.
    Eli> +adjustments, such as adding or changing a directory component, or even
    Eli> +considering certain compiler messages not error messages at all.
 
The matching is done against whatever `compilation-error-regexp-alist'
tells us is the filename, not the error message, so Iʼm not sure how
that would work. Did you have an example in mind?

Robert
-- 

Re: emacs-30 130c2a13dc7: ; * doc/emacs/building.texi (Compilation Mode): Fix last change.

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: Eli Zaretskii <eliz@gnu.org>
> Date: Wed, 04 Dec 2024 17:33:53 +0100
> 
> >>>>> On Wed,  4 Dec 2024 11:21:45 -0500 (EST), Eli Zaretskii <eliz@gnu.org> said:
> 
>     Eli> diff --git a/doc/emacs/building.texi b/doc/emacs/building.texi
>     Eli> index 3a3dd1d4461..bebf410f919 100644
>     Eli> --- a/doc/emacs/building.texi
>     Eli> +++ b/doc/emacs/building.texi
>     Eli> @@ -316,7 +316,8 @@ to parse output from a @code{grep} command (@pxref{Grep Searching}).
>     Eli>    Sometimes @code{compilation-error-regexp-alist} doesn't correctly
>     Eli>  determine the filename that is the source of the error.  Use user option
>     Eli>  @code{compilation-transform-file-match-alist} to make any necessary
>     Eli> -adjustments, such as adding or changing a directory component.
>     Eli> +adjustments, such as adding or changing a directory component, or even
>     Eli> +considering certain compiler messages not error messages at all.
>  
> The matching is done against whatever `compilation-error-regexp-alist'
> tells us is the filename, not the error message, so Iʼm not sure how
> that would work. Did you have an example in mind?

It's an explanation of what the value nil, instead of a replacement
string, means.