Re: Multiarch support (was Moving 32-bit libraries to (/usr)/lib32on amd64)
On 06-Feb-24 12:06, Aurelien Jarno wrote:
> Andreas Jochens a écrit :
> >I suggest the following setup for 32-bit libraries on amd64:
> >
> >1. The ia32-libs package continues to install the 32-bit libraries in
> >/emul/ia32-linux/usr/lib but it stops to provide the 32-bit libc6(-dev)
> >packages.
> >2. The ia32-libs package does no longer provide a symlink from
> >/usr/lib32 to /emul/ia32-linux/usr/lib.
>
> Removing this link render the ia32-libs-dev package unusable as
> /emul/ia32-linux/usr/lib is not a search path when linking libraries.
/emul/ia32-linux/usr/lib _is_ in the search path of the dynamic linker
because /emul/ia32-linux/usr/lib is added to /etc/ld.so.conf by
ia32-libs.postinst. Consequently, the symlink to /usr/lib32 is not
necessary to run 32-bit binaries that use libraries from ia32-libs.
As far as I remember, the /usr/lib32 symlink was introduced in ia32-libs
because without it 'gcc -m32' did not work correctly because it expects
its own 32-bit libraries (e.g. libgcc*) to be in /usr/lib32. This
problem with gcc will no occur in my suggested setup because of:
> >3. The 32-bit libraries from libc6(-dev-)-i386, lib32gcc1, lib32stdc++,
> >lib32z1 and other "_amd64.deb" packages are installed in
> >/usr/lib32 which is not a symlink but a real directory.
Regards
Andreas Jochens
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