Open Radar

 
Summary:
When a project uses swift, Xcode 8 beta 2 (8S162m) fails to copy the standard swift library when linking against specific frameworks.
More specifically, the "Copy Swift standard libraries" build step fails with the following error:
"Found an unexpected Mach-O header code: 0x72613c21"

Removing the offending frameworks from the link phase gets the build through.
So far, I've only seen the Crashlytics/Fabric frameworks to be causing this.
Building a pure objective c project does not trigger the problem.
Xcode 7.3.1 (7D1014) is not affected by this problem either.

It's worth noting that these 2 frameworks are actually static libs packaged as in a framework bundle.

Steps to Reproduce:
1. Open attached MachoHeader project
2. Attempt to build and run
3. Open attached MachoHeaderNoSwift project
4. Attempt to build and run

Expected Results:
Both project build and run

Actual Results:
MachoHeader fails to build with error "Found an unexpected Mach-O header code: 0x72613c21"
MachoHeaderNoSwift builds and runs successfully

Version:
Xcode 8S162m
OSX 10.11.5 (15F34)

Notes:
I've attached 2 projects to this bug report, both projects are the canned "single view" Xcode templates to which I've simply added the aforementioned frameworks.

MachoHeader.zip is a pure swift project exhibits the issue.
MachoHeaderNoSwift.zip is a pure objc project and is not affected.

Configuration:


Attachments:
'SampleProjects.zip' was successfully uploaded.