On Jan 5, 2017 9:03 AM, "Jonathan Wakely" <jwakely(a)fedoraproject.org>
difference would be installation/deployment. The idea would be that
the 32-bit and 64-bit runtimes being installed directly in parallel on the
system, they would instead be installed into effectively a chroot with its
completely 32-bit runtime.
Which changes how software is built, surely.
Tom's use case is where you simply invoke "gcc -m32" on the base
system and (assuming the relevant 32-bit versions of the libs are
present in /usr/lib) it Just Works.
If the 32-bit headers and libs aren't present on the base system then
you have to change how the software is built.
The Linux kernel needs gcc -m32 to work for freestanding programs.
Linux's x86 test suite likes normal glibc programs built with gcc -m32 to