[trimmed CC list to -current]

On 06 Dec 2014, at 04:59, Garrett Cooper <yaneurab...@gmail.com> wrote:
> On Dec 5, 2014, at 16:52, jenkins-ad...@freebsd.org wrote:
>> See <https://jenkins.freebsd.org/job/Build-UFS-image/599/>
>       I’m not entirely sure why the "could not determine COMPILER_TYPE" error 
> popped up, but I have a couple of questions/concerns related to the makefile 
> snippet.
>       1. Does it make sense to check CC when running make install?

Yes, of course it makes sense, if parts of the install depend on e.g.
COMPILER_TYPE.  In some cases, you will have to run ${CC} to determine
what it is, specifically if it is just "cc".

>       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. :-)

>       At EMC/Isilon at least, we set CC/CXX=false when running make 
> distribute*/installkernel/installworld to catch logic errors with rebuilding 
> code. Should this be in FreeBSD?

Not sure what that is meant to achieve.  If parts of the installation
depend on the value of CC, why would you want to set it to false?  Just
so it can error out at those points?


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