On Tue, Sep 4, 2012 at 4:23 AM, Richard Melville <richard.melvill...@googlemail.com> wrote: >> I extracted all of these packages from within the GCC-4.7.1 folder
<snip> > > I'd still be interested to know why we build GMP, MPC, and MPFR inside GCC > except on the final build where they are built separately. > > Richard > During pass 1, GCC requires the GMP, MPC and MPFR libraries, but we don't want GCC to get these libraries from the host. GCC searches for the libraries either via the regular search paths *or* inside it's own source tree. We install a temporary copy inside the GCC source tree to take advantage of this, and thus allow GCC to not be contaminated with host libraries During pass 2, we are in a protected chroot environment, so we are no longer concerned about the host. So other programs in pass 2 can take advantage of the GMP, MPC and MPFR libraries later in the build, we install them before GCC instead of in the source tree. -- -- - Steve Crosby -- http://linuxfromscratch.org/mailman/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/lfs/faq.html Unsubscribe: See the above information page
