xcode 4.6 Target Build Setting missing the "Apple LLVM compiler 4.2 - ... " sections

Question

In xcode 4.6, I created a new project with multiple targets. One of my targets, an empty iOS application, is missing all of the "Apple LLVM compiler 4.2 - ..." sections from the Target Build Settings. Anyone else seen this? Any idea on how to get them to display?

I am able to replicate the situation consistently in six steps:

1. Start xcode 4.6
2. File --> New --> Project...
3. Select an OS X Framework & Library --> Bundle (accept all defaults)
4. In that project, File --> New --> Target...
5. Select an iOS Application --> Empty Application (accept all defaults)
6. Goto the iOS Application target's "Build Settings", notice no "Apple LLVM compiler 4.2 - ..." sections

With "Apple LLVM compiler 4.2 - ..." sections

Without "Apple LLVM compiler 4.2 - ..." sections

Answer 1

When I created a new project with an initial target that was an OS X Bundle (see step 3 on how to replicate the situation in the question), the default setting for all added targets inherit the projects settings which in this case were for OS X. When I added and iOS Empty Application target, the "Build Settings" were correct, but the "Apple LLVM compiler 4.2 - ..." sections were missing.

I was able to get the "Apple LLVM compiler 4.2 - ..." sections in the "Build Settings" to display for the iOS Empty Application target by changing the Project's (not any of the Targets') "Build Settings" "Architectures" section in the following manor:

Base SDK from: Latest OS X (OS X 10.8) to: Latest iOS (iOS 6.1)

Architectures from: 64-bit Intel to: Standard (armv7, armv7s)

Then click on the iOS Empty Application target's Build Settings" and there are the "Apple LLVM compiler 4.2 - ..." sections.