https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109007
--- Comment #18 from bugreporter66 at gmail dot com --- I noticed that building on newer Linux distros often produces a binary that then cannot run on older ones even with the same CPU, it requires newer libraries at runtime (tried that with x86_64). That alone limits backward-compatibility among Linux releases, but forward-compatibility does work (I always build release binaries on the oldest distro available, then it works everywhere). So, I might be willing to let go of the idea of building for the older targets on the up-to-date LTS release, and as a workaround I should always emulate on the latest available CPU to future-proof for the next transitions.