HipByte/RubyMotion — pull request #28 by satococoa (2012-08-14 05:45:50+00:00)
Title: Add "-fobjc-arc" for linker flag when deployment target is 4.3

To use ARC-enabled libraries (e.g. [SVPullToRefresh](https://github.com/samvermette/SVPullToRefresh)) on iOS 4.3 device, this flag seems to be needed.

http://stackoverflow.com/questions/7967415/could-i-build-a-arc-framework-and-use-it-in-a-non-arc-project