On 7/20/07, Joe Ciccone <[EMAIL PROTECTED]> wrote: > Jeremy Huntwork wrote: > > On Thu, Jul 19, 2007 at 09:59:31PM -0400, Joe Ciccone wrote: > > > >> LFS could be made to accommodate x86_64 (multilib) with very few changes > >> and a bunch of new pages. Where multilib gets tricky is where lfs stops > >> and blfs begins. With the introduction of pkg-config and all those fun > >> *-config programs and hard coded library paths. > >> > > > > And non-multilib is even fewer changes, and would be much easier for > > BLFS to accomodate. I suppose the only concern is compliance with > > standards and/or user expectations. I'm working on getting a LFS-style > > native build done on x86_64 with as few changes as possible. I'll let > > you know how it goes. > > > There is even a bigger problem with non-multilib builds. The way clfs > does it, all the 64bit libs go into /lib and such. FHS specifies ld.so > for 64bit x86_64 to be at /lib64/ld-linux-x86_64.so.2. If ld.so is in > /lib, all those nice 64 binary packages need to be modified or a > compatibility symlink has to be put in place. Plus a 64bit build will be > incapeable of running 32bit binaries, unless 32lib libraries are put on > the system somewhere, and /lib/ld-linux.so.2 knows where to look for them. > > You can have /lib64/ld-linux-x86_64.so.2 (symlink to /lib), > /lib/ld-linux.so.2 (32bit), and /lib/ld-linux-x86_64.so.2 (64bit). Your > 64bit libs in /lib. and your 32bit libs in /lib32 or some weird place > lib /opt/emul_32/lib. A hint about using /opt/emul_32/lib for the > specific purpose of running wine could definitely be written up. That > would be useful for clfs too.
Thanks for the info. I think just to get started on handling multiple arches in LFS, we should focus on non-multilib 64 and just symlink /lib -> /lib64. Hopefully it doesn't bite elsewhere, but I think it's the fastest way to get up and running. Multilib is definitely the way to go, but I think it's more important to just get a 64 bit build in before handling the much larger case. Then again, I haven't done anything, so this is just speculation. -- Dan -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
