Warning flags applied to system framework headers in Xcode 8.3 beta
| Originator: | steipete | ||
| Number: | rdar://30233378 | Date Originated: | 27-Jan-2017 03:35 PM |
| Status: | Open | Resolved: | |
| Product: | Developer Tools | Product Version: | 8.3b1 |
| Classification: | Enhancement | Reproducible: | Always |
Summary: Warning flags for a project are also applied to system framework headers in Xcode 8.3 beta resulting in build warnings and/or errors. This works properly in Xcode <= 8.2.x. Steps to Reproduce: 1. Install Xcode 8.3b1 2. Open attached `SystemHeaderWarningsExample` project in Xcode 8.3b1 3. Build & run tests (Command + U) Expected Results: Build should finish without warnings or errors. Actual Results: Build fails with the following error: `Declaration of instance variables in the interface is deprecated`. The error originates in a system framework header, here in `XCTest/XCTWaiter.h` (and others). Regression: This problem occurs with Xcode 8.3b1 but not with Xcode 8.2.x. Notes: Adding `--system-header-prefix XCTest/` to `Other Warning Flags` explicitly fixes the problem. See also rdar://30230767
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