[EMAIL PROTECTED] wrote:
You're right that build times are dominated by the external commands
when rebuilds occur. If nothing needs to be rebuilt, though, the
wall-clock time is obviously dominated by how long it takes for
the build tool to decide that. A build tool that doesn't decide
whether or not targets are up-to-date *and* dispatch the commnds
to rebuild them reasonably quickly and efficiently doesn't do a
good job of serving its users.
That answer, combined with Mike's response pointing out
that tools more sophisticated than basic "make" actually
can delve into the source and identify the dependencies,
removes my confusion. Thanks. :)
-Peter
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