and if I understand correctly, any such /etc/config.site falls prey to one of the more famous N problems in computer science, since the only truly stable things

and if I understand correctly, any such /etc/config.site falls prey to one of the more famous N problems in computer science, since the only truly stable things one could put in any such file would be the host triple and byte order. Maybe if there was a systemwide hook into deb or rpm to regenerate it after any package updates it would solve the cache invalidation part