At some point, it becomes unreasonable to burden common platforms with
delays that only support relatively obscure and obsolete platforms.
Configure scripts already have a bad reputation for wasting time. Even
if they are faster than editing a custom makefile, they are idle instead
of active time for the user, so waiting is harder.
I feel that 6-second test delays or 2-second incremental delays later
qualify as clearly unreasonable. The 1-second timestamps are borderline
unreasonable. Cross-compiling with a decent filesystem is more
reasonable.
Why can't we resolve this by requiring systems with 2-second resolution
to set a flag in config.site? That moves the burden closer to where it
belongs.
https://www.gnu.org/software/automake/manual/html_node/config_002esite.html
-- Daniel