On Jan 5, 2017 9:03 AM, "Jonathan Wakely" <jwak...@fedoraproject.org> wrote:.
The main > difference would be installation/deployment. The idea would be that > instead of > the 32-bit and 64-bit runtimes being installed directly in parallel on the > base > system, they would instead be installed into effectively a chroot with its > own > 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 work. --Andy
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