> I think a better technical approach would be to embed the library as a > framework in your app, but arrange that if a version of the framework is in > (say) /Library/Frameworks, that one is dynamically loaded instead of the > built-in framework. You might also need to be able to provide the source > code of the version you embedded, but it would be easy for users to > substitute other (ABI-compatible) builds for yours. >
Ignoring Mac App Store and Sandboxing for a moment, this could work with Runtime Search Paths (LD_RUNPATH_SEARCH_PATHS). It allows multiple search paths. I used to do this in the reverse direction to have developer fallbacks if the framework wasn’t in the bundle (for internal dev purposes…I was not signing). Under sandboxing, the real /Library/Frameworks wouldn’t be accessible, but maybe the virtual/fake one in the application sandbox would work and satisfy the problem if codesigning didn’t get in the way. I don’t know enough about the MAS signing/verification process. For example, is it possible for me to add/permit my own private certificate to my system keychain and then sign the framework? (Or resign the entire app with my self-signed key that I told my system to accept?) > However, for designated frameworks, if there was a way — I dunno, an > environment variable you could set — to adjust the load location of just > those frameworks, DYLD_FRAMEWORK_PATH and DYLD_LIBRARY_PATH do this, but I don’t know if it has precedent over what’s compiled into your app. If it worked, the users would probably need to launch via a shell, but whatever. I suppose going the dlopen runtime route instead of compile time linking could avoid these problems. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
