Weak-linking multiple frameworks for iPhone Apps (-weak_framework)

Question

How do I specify -weak_framework for multiple frameworks while compiling iPhone apps for older deployment targets?

Piero

Answer 1

In the Build Phases section of your target, you've got the list of the linked frameworks.

For each one, you can select Required or Optional, optional meaning weak.

Dissymmetry

Thanks for the response. In my application, I am accessing Twitter.framework and Accounts.framework that need to be weekly-linked. I've set the "Link Binaries With Libraries" to "Optional" for these frameworks. However, I still get the following errors and the application is crashing in previous Deployment targets: warning: Unable to read symbols from "Accounts" (not yet mapped into memory). warning: Unable to read symbols from "Twitter" (not yet mapped into memory). Please help. – Piero

Answer 2

Add a linker flag -weak_framework <framework_name> Check this link: https://developer.apple.com/library/mac/#documentation/MacOSX/Conceptual/BPFrameworks/Concepts/WeakLinking.html

Monadelphous