On 22/11/2017 11:28, Francis Dupont via RT wrote:

> => implementations no(ne) even I should check old bsdmake. But
> specifications yes as -j is a POSIX flag and of course POSIX didn't
> define a way to disable it.
> 
> BTW what I need is an easy and portable way to disable parallelism
> for one entry, not the whole Makefile.

If "-j" is a POSIX requirement, then one option is to have a target that
calls make recursively with "-j1":

non_parallel_target: $(MAKE) -j1 real_target

<https://stackoverflow.com/questions/17172310/make-disable-parallel-building-in-subdirectory-for-single-target-only>

Ray