"Fernando J. Pereda" <ferdy@xxxxxxxxxx> writes:
> Signed-off-by: Fernando J. Pereda <ferdy@xxxxxxxxxx>
> ---
>
> I don't know if this breaks non-gnu make, and don't have an easy way
> to test it right now. So someone should do that before it is applied.
I had an impression that our makefile is quite dependent on GNU
make already. Do people build git without gmake?
> This is needed for GNU make to let sub-makes connect to the jobserver
> when multiple jobs are specified (-j option to make). It was not
> needed before 74f2b2a8d006a49e1be7e30731c2f7365d2741d1 because of how
> GNU make works.
Thanks. The info page does not talk about -j but '+' apparently
is needed for jobserver.
As a special feature, using the variable `MAKE' in the commands of a
rule alters the effects of the `-t' (`--touch'), `-n' (`--just-print'),
or `-q' (`--question') option. Using the `MAKE' variable has the same
effect as using a `+' character at the beginning of the command line.
*Note Instead of Executing the Commands: Instead of Execution. This
special feature is only enabled if the `MAKE' variable appears directly
in the command script: it does not apply if the `MAKE' variable is
referenced through expansion of another variable. In the latter case
you must use the `+' token to get these special effects.
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