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Of Linux kernel to userspace ABI development. The user-space ABIs are widely unstable. Try to run software compiled on Ubuntu 20.04 on 18.04 for example. On

by my123 6y ago

Of Linux *kernel* to userspace ABI development. The user-space ABIs are widely unstable. Try to run software compiled on Ubuntu 20.04 on 18.04 for example. On macOS, it's just the matter of using -mmacosx-version-min= to make sure that newer functions don't get used. Or for that matter, even in the reverse case, things break.

the_why_of_y 6y ago
Of course that doesn't work. Why would anyone expect it to? Install your baseline distro version in a chroot and set GCC's --sysroot, alternatively use a container, alternatively use a Flatpak SDK, problem solved. The main problem with this is knowing which libraries have stable ABIs and which don't, which is only documented in a convenient way for enterprise distros (RHEL/SLES).