xCode ARC Support

I need to turn on ARC for my iOS project. I tried adding -fobjc-arc and objc-arc to the AOT options, but that doesn't work. I knew that was probably the case because those AOT compiler options and not xCode options, but I thought it was worth a try.

Can someone tell me if there is a way to add xCode compiler options in the Unity player settings? I don't want to have to add them to the xCode project every time I replace the xCode project or have another developer generate the xCode project from scratch.