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Re: Problem with absolute path

From: Boris Kolpackov
Subject: Re: Problem with absolute path
Date: Tue, 20 Jul 2004 10:54:19 -0500
User-agent: Mutt/1.5.6i

Paul D. Smith <address@hidden> writes:

> Anyway, the idea was certainly performance: if a directory doesn't exist
> and there are no rules in your makefile to create it (that is, there are
> no targets that allow make to create that directory), then in make's
> model it can never exist, so removing it from the search path is a
> performance improvement.  For directories that are often not there
> (think the CVS or RCS subdirectories, etc. which not only aren't there
> much of the time, but are associated with "match anything" rules) this
> can be significant.

I understand that. But why would make consider one-level non-existence
acceptable? E.g., if /tmp/out exists and /tmp/out/bin does not then
/tmp/out/bin/foo can be built. If /tmp/out does not exist then it 
cannot. Go figure...
> However, this check was causing more problems than it was worth (to me)
> and I've already removed it from the next release.

It is still there in anon-cvs unless we are talking about different


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