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I'm trying to update ODBCQueryTool so it builds under 10.7. It was originally targeted against 10.6, which is not directly supported in newer versions of Xcode. For now a working build would be fine, but ideally I'd like to make a version that builds and runs on 10.5 or newer.
So to start I downloaded and installed the 10.6 SDK. A number of problems disappeared at that point, but I got a series of these:
ld: warning:
directory not found for option '-F/Users/maury/Develop/odbckit/ODBCQueryTool/../ODBCKit/build/Release'
Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_NSMutableOrderedSet", referenced from:
objc-class-ref in libarclite_macosx.a(arclite.o)
I can't find anything useful in Google. I was under the impression that ARC was part of 10.7 and newer, so it's not clear why I get these at all.
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You can upgrade to OS X El Capitan (version 10.11) from OS X Snow Leopard (version 10.6) or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.
From the Apple menu in the corner of your screen, choose System Preferences. Click Software Update in the System Preferences window. Can't find Software Update? Software Update now checks for new software.
At the moment it is not possible to upgrade to Lion without first installing the App Store, and Apple hasn't announced any plan to make that available on versions older than Snow Leopard.
Just making this an answer based on Chris's post:
In build settings set "Implicitly link Objective-C Runtime Support" to NO.
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