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Date: Mon, 20 May 2013 14:56:08 -0500
From: Brooks Davis <brooks@freebsd.org>
To: Garrett Cooper <yaneurabeya@gmail.com>
Subject: Re: svn commit: r250659 - in head: . share/mk tools/build/options
tools/tools/makeroot
Message-ID: <20130520195608.GF2630@lor.one-eyed-alien.net>
References: <201305151430.r4FEU31J061480@svn.freebsd.org>
<E7C635F4-5C2F-4DAF-A0B3-AE5C0EA9425B@gmail.com>
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On Wed, May 15, 2013 at 10:10:13AM -0500, Garrett Cooper wrote:
> On May 15, 2013, at 9:30 AM, Brooks Davis wrote:
>=20
> > Author: brooks
> > Date: Wed May 15 14:30:03 2013
> > New Revision: 250659
> > URL: http://svnweb.freebsd.org/changeset/base/250659
> >=20
> > Log:
> > Add support for an external cross compiler. The cross compiler is
> > specified by passing the XCC, XCXX, and XCPP variables (corresponding =
to
> > CC, CXX, and CPP) to buildworld/buildkernel. The compiler must be cla=
ng
> > or be configured to target the appropriate architecture.
> >=20
> > To speed build times, if XCC is an absolute path or
> > WITHOUT_CROSS_COMPILER is defined then no cross compiler will be built
> > during the cross-tools stage.
> >=20
> > Limited documentation of this feature can currently be found at:
> >=20
> > https://wiki.freebsd.org/ExternalToolchain
> >=20
> > This functionality should be considered experimental and is subject to
> > change without notice.
>=20
> Seems like this code could/should be integrated in with conf/163778 (in =
particular the bits that Warner provided to share/mk/sys.mk that I integrat=
ed in my larger patch).
>=20
The patch in conf/163778 seems to combine several unrelated things. I
don't know what the usecase is for ${AWK}, but it should certainly be
committed on it's own if it is committed.
The reason I rejected the ${__X} approach is that it requires a=20
fixed naming convention that doesn't work at all for compilers. I think
it's a somewhat better idea for binutils, but we'll probably break the
convention at least initially with mclinker.
-- Brooks
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