Xcode9似乎不支持3rd llvm編譯器？

Question

將默認的Apple-LLVM替換爲從llvm.org下載的LLVM 5.0。 和編譯，Xcode中拋出一個錯誤：

clang-5.0: error: cannot specify -o when generating multiple output files 

Xcode8是OK。

謝謝。

Answer 1

這不是一個鏗鏘5.0只問題。我與自定義的Clang 3.9有同樣的問題。 的Xcode 9還引入了一個正常鏘不支持自定義參數：

The -index-store-path argument does not exist in Clang 5.0 and it gets discarded without any error message. The problem is that its argument, a folder, is not discarded, and Clang considers it as a source file. This leads to the following errors:

• cannot specify -o when generating multiple output files (this happens if a -o argument is passed)
• error reading '<PATH>' (this can be observed when running the "normalized" version of the clang command, generated via the -### flag)

來源：Facebook/infer: Remove unsupported index-store-path argument from clang commands。

---

在基於鏘/ CMake的/我的Xcode工具鏈定製我使用wrapper around clang中，我只是切斷了這種說法和文件夾傳遞給它，一切工作正常。