Re: Flag --no-builtin-rules etc. just for this makefile (no flag inheritance)

[R. Diez]

> MAKEFLAGS is actually the solution. You can *add* to it and the flags take 
> effect.

Thanks for the trick.

Unfortunately, the filtering is still a big issue in practice. If you take a look at OpenWrt's makefile, you will see that it is a huge beast with 
many contributors. The same is true for other projects.

But even if you have a smaller project, it is a pain having to remember every 
time that you need to filter/restore your MAKEFLAGS for every sub-make.

It would be much better if GNU Make could do that automatically, like it does 
for settings like .ONESHELL .

Regards,
  rdiez