On 2 September 2010 02:11, Daniel Herring dherring@tentpost.com wrote:
I think ASDF2 makes these steps easier.
- make sure LibCL's ASDF is loaded (ASDF's upgrading handles old
implementations, and blocks a downgrade?)
ASDF doesn't block downgrades. If you are confident that your implementation comes with ASDF2, you can just (require :asdf) then (asdf:load-system :asdf).
However, I'm having some difficulty with the config.d file. So far, the syntax is fine; its the naming that I can't get right. When a new version of LibCL is installed, I don't want to auto-uninstall the old version... So my thought was to create files like the following.
50-libcl-2009-10-27.conf # old config 50-libcl-2010-10-27.conf # new, preferred config
Unfortunately, string< will load the old file first; thus the old libraries will be found first... Can you think of a natural naming scheme such that the new libraries will be found?
That's an interesting problem. We could have an extension to asdf that handles sorting in reverse order, but here's a proposal that doesn't require such:
(let ((time (get-universal-time))) (format nil "50-libcl-~36,4,'0R-~{~5*~4,'0D-~2:*~2,'0D-~2:*~2,'0D~5*~}.conf" (- #36RZZZZ (floor time #.(* 24 60 60))) (multiple-value-list (decode-universal-time time))))
Of course, now you have the Y6498 bug.
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