Date: Thu, 4 Aug 2011 09:13:22 -0600 From: Warner Losh <imp@bsdimp.com> To: Dimitry Andric <dim@freebsd.org> Cc: freebsd-toolchain@freebsd.org Subject: Re: [help] rebuild libc failed Message-ID: <5D36ABDF-49AF-48E1-98AF-E37AEFAE2737@bsdimp.com> In-Reply-To: <4E3A70BB.4020503@FreeBSD.org> References: <CAPgsGw-jN1j3onmTsT7Q6yR=0o_LLSa7Ur4WpGKL1QJ5Dh=W3Q@mail.gmail.com> <4E3A70BB.4020503@FreeBSD.org>
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On Aug 4, 2011, at 4:13 AM, Dimitry Andric wrote: > On 2011-08-04 10:38, majia gm wrote: >> I'm building the libc code which derived from a current trunk >> mirror/freebsd/head under PCBSD 8.2 which contains FreeBSD 8.2 >> release. >> I'm trying to test the modified libc by using LD_LIBRARY_PATH. But >> failed to build it. >> I change the current direcotry into head/lib/libc and run make. > > You cannot always do this, especially not when going from 8.2 to head, > because you need to build a toolchain first, which includes updated > headers and other components. > > It's probably best to just run "make buildworld", which will take care > of everything. Otherwise, run "make toolchain" first, followed by "make > buildenv". In that build environment, you can just change to the > lib/libc directory and run make. > > NOTE: Do *not* install the updated libc if you are running an old > kernel, or you will most likely hose your system. make buildworld to set things up then you can rebuild just libc by make buildenv cd lib/libc make Warner
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