Mystery of the missing symbol
Mystery of the missing symbol
- Subject: Mystery of the missing symbol
- From: Graham Cox <email@hidden>
- Date: Mon, 03 Oct 2011 11:50:10 +1100
A user is reporting this error logged to the console when trying to load a plug-in bundle (an iTunes visualizer):
dlopen(<path to plug-in>): Symbol not found: __NSConcreteStackBlock
Referenced from:<path to plug-in executable>
Expected in: /usr/lib/libSystem.B.dylib
The plug-in is built against the 10.7 SDK with a minimum deployment target of 10.5 (however, I've only tested it on 10.6 and 10.7). The user has version 10.5.8, so I'm guessing that this private class isn't available there.
Apparently this is a private member of a class cluster (which class, I do not know), so I'm not invoking it directly. With a deployment target of 10.5, shouldn't the linker or compiler complain at some point? What should I be looking for?
--Graham
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