[CFT]: ClangBSD is selfhosting, we need testers now

[Outback Dingo]

On Fri, Apr 16, 2010 at 12:08 PM, Roman Divacky <rdivacky at freebsd.org>wrote:

> Hi,
>
> ClangBSD is a branch of FreeBSD that aims at integrating clang (
> clang.llvm.org)
> into FreeBSD, replacing GCC as a system compiler.
>
> Recently, we've achieved the state when clang can compile all of FreeBSD
> world
> on i386/amd64 platforms (including all the C++ apps we have and itself)
> and a bootable kernel. Thus we feel that the time has come to ask the
> FreeBSD
> community for wider testing on i386/amd64 (you sure can help with other
> platforms too :)).
>
> How to setup ClangBSD:
>
> The default configuration of ClangBSD requires clang installed so you can
> either install fresh llvm-devel port (portinstall devel/llvm-devel) or
> change
> CC to "gcc" and CXX to "g++" in share/mk/sys.mk. I recommend the former.
>
>
>        svn co http://svn.freebsd.org/base/projects/clangbsd/ clangbsd
>
>        cd clangbsd && make buildworld
>
>        echo NO_WERROR= >> /etc/make.conf
>        echo WERROR=    >> /etc/make.conf
>
>        make DESTDIR=/clangbsd-chroot/ installworld
>
>
> now you have ClangBSD world installed and you can chroot into it. I don't
> recommend installing ClangBSD into real root as it is not tested enough.
>
> You can also start using clang compiled kernel - either build the kernel in
> the ClangBSD chroot (set NO_WERROR=yo and WERROR=yo in /etc/src.conf) or
> set
> CC to clang and build kernel the normal way.
>
> This information (and more) is also provided on:
>
>        http://wiki.freebsd.org/BuildingFreeBSDWithClang
>
> We kindly ask you to setup ClangBSD chroot and/or use clang compiled kernel
> and
> use it as you would normally use FreeBSD. Please report back
>
> Thank you,
>
>   Roman Divacky on behalf of the ClangBSD team
>

can someone explain the benefit other then not relying on gcc now ?
performance ?