What's the best solution to the old framework in a framework problem?
What's the best solution to the old framework in a framework problem?
- Subject: What's the best solution to the old framework in a framework problem?
- From: John Clayton <email@hidden>
- Date: Wed, 24 Mar 2004 23:11:03 -0500
I know there have been many discussions of this subject on the list,
with varying responses. I'm wondering how people are actually solving
this issue.
The basic problem is that including a framework or other dynamically
loaded library in a framework doesn't work because the application
including the parent framework can't load the subframework because it's
not in the library paths. Building the subframework with the
@executable_path/../Frameworks doesn't work because relative to the
app, it's not in that path. From what I can glean, the options are:
1) Build an umbrella framework that is stationary (in one of the
default library paths) and stick the subframeworks under there.
Drawbacks are that this defeats the drag-and-drop installation
experience and that Apple recommends nobody but them do this.
2) Roll your own loader. Some people have talked about this, but it
seems difficult at best (examples would be appreciated) and I wonder
about performance issues here.
3) Build the subframeworks as static libraries and include those in the
parent framework. This has the disadvantage of losing the lazy loading
of needed resources. Plus, one might not have the source code ;-(
4) Incorporate all the code into a single framework. Same issues as
above, I guess.
None of these options seems too great.
I wonder, is it considered a bug in dyld that this situation isn't
workable, or is it by design? In any case, I'd really appreciate your
wisdom on this subject. Thanks a lot,
John.
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"It is the truth that frees, not your attempts to be free."
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