> On May 9, 2016, at 2:07 PM, David Hoerl <dho...@mac.com> wrote: > > But now I'm totally mystified why I cannot get my app to link in Release - it > works just fine with Debug. > > The release error is: > > Undefined symbols for architecture arm64: > "_OBJC_CLASS_$_SBSoundEffects", referenced from:
The release version of the framework isn’t exporting any of its symbols, probably. A debug build exports all symbols by default, but IIRC a release one doesn’t. I use an exported-symbols (.exp) file to tell the linker which symbols to export — you configure that with the “Exported Symbols File” option in the Linker build settings. The .exp file is just a list of symbols, one per line; for obscure reasons function and global variable names have to be prefixed with a “_”. For an Obj-C class use the name “.objc_class_name_SBSoundEffects”. —Jens
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