From owner-freebsd-hackers@FreeBSD.ORG  Mon Nov 25 02:00:38 2013
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Subject: Re: Building with gcc?
From: Matthew Fleming <mdf@FreeBSD.org>
To: Glen Barber <gjb@freebsd.org>
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On Sun, Nov 24, 2013 at 5:31 PM, Glen Barber <gjb@freebsd.org> wrote:

> On Sun, Nov 24, 2013 at 05:28:05PM -0800, Matthew Fleming wrote:
> > I'm trying to test a change to gcc, and I'd like to do a full
> > buildworld/buildkernel using the gcc compiler.  So I added this to my
> > /etc/src.conf (and make.conf, since I can't remember under which
> scenarios
> > they're different):
> >
> > WITHOUT_CLANG=YES
> > WITH_GCC=YES
> > WITH_GNUCXX=YES
> >
> > and I started a buildworld.  It's currently building clang.
> >
> > Why is it building clang?
> >
>
> You also want WITHOUT_CLANG_IS_CC=YES.  I have no reasonable explanation
> for why it is different.
>
> You'll also need:
>     W_ERROR=
>     NO_WERROR=YES



Whoops.  I had known about WITH_CLANG_IS_CC back when it wasn't yet the
default.  Somehow I didn't make the connection to having to reverse it now.
 Seems to be working as I expect now.

Thanks,
matthew