bug#58653: 29.0.50; Long lines in *compilation* buffer

[Gerd Möllmann]

On 03.11.22 14:34, Eli Zaretskii wrote:
> > From: Gerd Möllmann <gerd.moellmann@gmail.com>
> > Cc: 58653@debbugs.gnu.org
> > Date: Thu, 03 Nov 2022 13:13:22 +0100
> >
> >    :22: warning: 'sprintf' is deprecated: ...
> >
> > This should actually be xdisp.c:22:...
> >
> > The xdisp.c can be found above that warning as part of a long line
> >
> >    ebrew/Cellar/libidn2/2.3.4/include -isystem
> >    /opt/homebrew/Cellarxdisp.cAWK=awk ./mapconv glibc/IBM857.gz '/^<.*[
> >                        ^^^^^^^
> >
> > And the newline before "AWK=" is probably also somewhere else.
>
> Are you building with -jN, i.e. in parallel?  Then what you see could
> be the consequence of several processes writing simultaneously to the
> same device.  If you use GNU Make, try adding the --output-sync=line
> switch to the Make's command line.

Yes, I am building with GNU make 3.81, -j8 by default, which doesn't
seem to recognize --output-sync.

I'll try to get a newer gmake, and report back.