Originally Posted by Luridis

As an interesting digression, this is one place Apple impressed the hell out of me. They use unified binaries that support not only multiple architectures (no. of bits), but multiple platforms (intel/ppc). That's one crazy linker!

https://youtu.be/-7GMHB3Plc8

Originally Posted by sr_ls_boy

Its the exact opposite. At this link 'elkrejzi' and I
discuss multilib as a theory. Read the link and you'll
learn my personal troubles in getting multilib to work.
The 32-bit dynamic linker needs to come first in the
"LD PRELOAD" search. Whatever that means.
What I did is put /lib from a 64-bit LFS build into /lib64,
next, I put /lib from a 32-bit LFS build into /lib32. I then
created a /lib. There I have my kernel modules, firmware, udev
rules, and two recreated symlinks.. These to point to
ld-linux.so.2 & libc.so.6 in /lib32.

But in /usr its the other way around. In my experience the 64-bit
libraries needed to come first.

Originally Posted by sr_ls_boy

drwxr-xr-x  4 root root  4096 Sep 10 20:21 dhcpcd
drwxr-xr-x 37 root root  4096 Oct 21 00:41 firmware
lrwxrwxrwx  1 root root     8 Sep 10 20:21 lsb -> services
drwxr-xr-x  4 root root  4096 Feb 12 18:33 modules
drwxr-xr-x  3 root root  4096 Feb  5 23:17 security
drwxr-xr-x  2 root root  4096 Sep 10 20:21 services
drwxr-xr-x  3 root root  4096 Sep 10 20:21 udev
lrwxrwxrwx  1 root root    31 Dec 16 22:07 ld-linux.so.2 -> /lib32/ld-2.24.so
lrwxrwxrwx  1 root root    33 Dec 16 22:08 libc.so.6 -> /lib32/libc-2.24.so