Date: Fri, 16 Apr 2010 16:53:44 -0400 From: Outback Dingo <outbackdingo@gmail.com> To: current@freebsd.org Subject: Re: [CFT]: ClangBSD is selfhosting, we need testers now Message-ID: <w2n5635aa0d1004161353h1e243b4ax98fdc2d4a74ea5c1@mail.gmail.com> In-Reply-To: <20100416160818.GA69460@freebsd.org> References: <20100416160818.GA69460@freebsd.org>
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On Fri, Apr 16, 2010 at 12:08 PM, Roman Divacky <rdivacky@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 ?
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