options for forcing use of GCC

[Ian Lepore]

On Sun, 2014-04-27 at 22:25 +0800, Julian Elischer wrote:
> I need to hold off using CLANG for a while at $JOB. We are moving to a 
> newer FBSD in the vicinity of 10.0 but we need to keep the gcc in hte 
> picture for a bit longer before switching.  What options do I put into 
> various /etc/make.conf to keep CLANG out ofhte picture until we are 
> ready for it?
> 
>  From reading various posts I see:
> WITHOUT_CLANG="yes"
> CC=gcc
> CXX=g++
> CPP=gcc -E
> but that doesn't seem complete to me.
> 
> For now I want to not compile clang in our official build environment.
> (and obviously not use it until we are ready for it later this year.)
> 
> What other hooks do I need to set?
> 
> Julian

We've got the same situation at work.  What I'm using right now to build
11-current @ r264151 is this:

	WITH_GCC=yes \
	WITH_GNUCXX=yes \
	WITHOUT_CLANG=yes \
	WITHOUT_CLANG_IS_CC=yes \

But that's now several weeks out of date, and there are two new knobs I
haven't investigated yet: WITH_CLANG_BOOTSTRAP and WITH_GCC_BOOTSTRAP.

-- Ian