Supporting armv6, armv7 and armv7s with latest Dropbox framework build

Question

I am using the latest Dropbox framework to be able to support the new iPhone 5, and I would like to keep support for the iPhone 3G and iPod Touch 2G (armv6, iOS 4.2.1) that represents about 2% of people out there.

I keep an old Xcode 4.4 to be able to debug on my old device I still have for my kids. I use Xcode 4.4 to debug on 4.* and then switch to Xcode 4.5 to debug on my iPhone 5. I added armv6 to the build architecture, but I can't compile because of this error:

ld: file is universal (2 slices) but does not contain a(n) armv6 slice: /.../DropboxSDK.framework/DropboxSDK for architecture armv6

Anyone have succeeded in compiling with armv6, armv7 and armv7s, using Dropbox framework?

Answer 1

Xcode 4.5 (and later) does not support generating armv6 binaries.

Answer 2

By following this manual How to support both armv6 and armv7s for release build in xcode 4.5 you can support both - but no idea about the Dropbox SDK.