Comment # 10 on bug 1162283 from Jan Engelhardt

Today it's -msse2, tomorrow it's -mavx512.

I would not mind if upstream - concerning any package - explicitly communicates
"no more support for <platform>", and, at best, encodes that into program logic
with cpuid() and abort() calls right at the top of main().

What I do mind is that boldness to add -m flags rather discretely (no one
seriously reads compiler logs unless it fails) and cause spurious crashes on
20% of our users because some poor soul dared to execute it on a CPU that does
not match the upstream developer's silicon.
It's just a shitty user experience.