retain original date on binary files?

I'm evaluating Subversion for a new project, first time we'd be bringing it
into our shop.

What I'd like to do is put 3rd party jar files under Subversion's control,
so we can manage all of our dependencies from one place. But I would like
to retain the original datestamp on the jar file, as not all jar files are
named with an indication of their version, and the file's date is often a
good indicator of the version.

This doesn't seem to be possible -- from reading the online books and
searching the mailing list archives, it looks like when a file is checked
out from Subversion, the date it gets is the date of the last time the file
was touched in the repository. (Unless the server is configured with
use-commit-times.)

Can anyone confirm that what I'm looking for, retaining a file's original
datestamp at the time of first commit, can't be done via simple
configuration?

And assuming that's true, is there an approach that will let this be done
using hook scripts around svn commands?

Thanks.

--
Dennis R. Sherman
Endeavor Information Systems
847-227-2976
Dennis.Sherman@endinfosys.com
http://www.endinfosys.com 
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