Re: bash parallel build: make[1]: warning: -j16 forced in submake: resetting jobserver mode.

[Chet Ramey]

On 4/22/24 11:58 AM, Chet Ramey wrote:
> On 4/20/24 2:02 AM, Cedric Blancher wrote:
>
> > > You can check what env the submake in question has and which recipe
> > > runs it and see where this setting comes from.
> >
> > We were only using
> > make -j16 all
> > at the bash base dir. That should NOT trigger this warning.
>
> Bash passes ${MFLAGS} to makes in subdirectories; that variable gets
> whatever make puts in it, which includes the -jN option. It's that
> submake that decides to print that warning. Bash could mark some
> subdirectory targets as not parallel, but why would we do that?

Everyone seems to support MAKEFLAGS by now, and it's part of POSIX, so
maybe we delete $(MFLAGS) and rely on make to pass MAKEFLAGS to submakes
in the environment.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/

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