[asdf-devel] Two questions
ndl at ravenbrook.com
Wed Sep 30 10:28:28 UTC 2009
Maybe what you want is #+frob (:file "foo")
Ideally not, as you'd have to remember to reload all your .asd files
every time you messed with features.
If this isn't what :feature does, then what is it for?
> 2. Suppose I would like some code to run at compile-time /
> load-time to determine where the fasls should live
> (e.g. hypothetically, in a subdirectory named after a timestamp,
> or according to what patches I have loaded). How do I express
You can define your own :around method on output-files, and/or
override default methods. See how ASDF-BINARY-LOCATIONS (now part
of ASDF 1.366 and later) does it.
Hmm, that's an improvement. (Otoh writing about a rapidly moving
target is tricky. Each time I review this it's changed.)
Note that with XCVB, you can :depends-on (:when (:featurep :frob)
"foo") and you can xcvb --object-directory obj-$(timestamp) ...
OK. So you still can't say: look for the :frob feature and decide
whether to include this component?
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