Re: [PATCH] audo-detect and use -moutline-atomics compilation flag for aarch64 - Mailing list pgsql-pkg-debian

> on the Ubuntu side focal is using 9.3. Is that gcc version even affected?

Yes, we have backported the outline-atomics flag to Ubuntu 20.04 gcc-9.3.

On arm64 you can check whether a compiler has the option with:
$ gcc -v --help -Q 2>/dev/null | grep outline-atomics
  -moutline-atomics                   [disabled]
$ gcc --version
gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
[...]

Sebastian