Post Syndicated from original https://lwn.net/Articles/886516/

Perhaps February was “compiler modernization” month. The Linux kernel
recently decided to move to the C11 standard
for its code; Python has just undergone a similar process for
determining which flavor of C to use for building its
CPython reference implementation. A calculation in the CPython interpreter
went awry when built with a pre-release version of the upcoming GCC 12; that
regression led down a path that ended up with the adoption of C11 for CPython as well.