From owner-svn-src-head@FreeBSD.ORG  Wed Apr  6 21:41:33 2011
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Date: Wed, 6 Apr 2011 21:41:33 +0000
From: Alexander Best <arundel@freebsd.org>
To: Juli Mallett <jmallett@FreeBSD.org>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	src-committers@freebsd.org, Ulrich Spoerlein <uqs@freebsd.org>
Subject: Re: svn commit: r220401 - in head: . share/mk tools/build/mk
	tools/build/options
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On Wed Apr  6 11, Juli Mallett wrote:
> On Wed, Apr 6, 2011 at 14:04, Alexander Best <arundel@freebsd.org> wrote:
> > On Wed Apr  6 11, Ulrich Spoerlein wrote:
> >> Author: uqs
> >> Date: Wed Apr  6 20:08:23 2011
> >> New Revision: 220401
> >> URL: http://svn.freebsd.org/changeset/base/220401
> >>
> >> Log:
> >>   Complete WITHOUT_CXX support. It implies WITHOUT_GROFF and
> >>   WITHOUT_CLANG.
> >
> > is there no way to build clang/llvm without CXX support?
> 
> Clang and LLVM are written in C++.  Even if their support for
> compiling C++ could be disabled, you'd still need a C++ cross-compiler
> to build them, which ought to be disabled by WITHOUT_CXX, right?

good point. is it even possible to build a world *with* C++ support, if the
installed world *doesn't* have C++ support? is the C++ part of gcc written in
C? if that's the case it's possible.

couldn't we install clang *without* C++ support and then do the following to
build it *with* C++ support:

1) use gcc to build a bootstrap gcc *with* C++ support
2) use the bootstrap gcc to build clang

cheers.
alex

-- 
a13x