Am Sonntag, 3. März 2024, 14:32:41 CET schrieb Andreas K. Huettel:
> > I set CFLAGS="-O2 -pipe march=x86-64-v2" on the buildhost and performed a
> > emerge -ev @world, re-creating all packages in binary form.
> >
> > My expectation was that these packages would work on the target platform,
> > but they don't. Error message "CPU ISA level is lower than required".
>
> Quiz question: did you rebuild your toolchain *before* or *after* bzip2?
>
> Suspicion without proof, the startup code embedded by gcc and glibc may well
> be affected by the microarchitecture level. As may be libraries statically
> linked in...
>
> The safer way would be to run emerge -ev world, and afterwards build the
> packages with a second emerge -ev world ...
Indeed, that seems to be the problem. I remember, my first try was with -v3 (as
my buildhost supported this), and, after discovering the "surprise" on the
target machine, started the emerge -ev @world. Likely, glibc was not the first
package, so there are an unknown number of packets that have the problem.
I started to recompile the "usual suspects", like bzip2 and xz, which made it
a bit better, but still the emerge -uavDNk @world did not succeed.
Now I'm doing again a emerge -ev @world on my buildhost again, so tomorrow it
should be solved.
Thanks for the hint
Alex
