On Sat, Dec 06, 2014 at 04:01:26PM +0100, Dimitry Andric wrote:
> [trimmed CC list to -current]
>
> On 06 Dec 2014, at 04:59, Garrett Cooper <yaneurab...@gmail.com> wrote:
> > 2. Why isn?t this value determined once in Makefile.inc1 (per build
> > phase), then passed down from there
>
> Because you are supposed to be able to build stuff in a subdirectory,
> without invoking the full top-level Makefile infrastructure. The actual
> infrastructure is in share/mk/bsd.*.mk, in fact.
>
>
> > (I?ve already considered the scenario where someone explicitly sets CC in a
> > non-toplevel Makefile, which is a problem, but an outlier rather than the
> > norm)? AFAICT, it gets recomputed for every recursive make, which
> > contributes to useless forking for something that honestly doesn?t change
> > all that often/at all.
>
> This is indeed a pity, and if you know a better solution, let's hear it,
> please. :-)
>
Why not also put this information into some environment variables
with known ugly names, in top-level. Then, the lower-level calls of
infrastructure first check the vars, and recalculate the compiler
specific info if vars are absent. Use information from vars if present.
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