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Comment by torarnv | Hacker News Reader

CMake also does sequential configuration AFAIK. Is there any work to improve on that somewhere?

Meson and cmake in my experience are both MUCH faster though. It’s much less of an issue with these systems than with autotools.

Just tried reconfiguring LLVM:

    27.24s user 8.71s system 99% cpu 36.218 total

Admittedly the LLVM build time dwarfs the configuration time, but still. If you're only building a smaller component then the config time dominates:

    ninja libc  268.82s user 26.16s system 3246% cpu 9.086 total