On Nov 21, 2022, at 6:09 PM, Rich Felker wrote: > > Regarding your second solution, I think it's more elegant and > efficient and would be preferable if we were doing this from scratch, > but changing SEM_VALUE_MAX is arguably an ABI change we should not > make. > With my distro hat on: this isn’t used by too many programs. Debian Code Search returned a module of Boost. Otherwise, all apps correctly use sysconf(_SC_SEM_VALUE_MAX) in my cursory glance. With my gcompat hat on: yes, please don’t change it. The current value matches glibc and while it doesn’t seem many things use it, I would hate to have to debug those kind of corner cases in binary blob code. Best, -A.