GCC 4.0,4.2和LLVM ABI兼容性 [英] GCC 4.0, 4.2 and LLVM ABI Compatibility

问题描述

Xcode（gcc 4.0,4.2和llvm）支持三种主要的编译器风格二进制兼容吗？使用最新的Xcode工具加快多库项目的速度时，应该注意什么类型的陷阱和转角情况？

Are the three main compiler flavors supported by Xcode (gcc 4.0, 4.2, and llvm) binary-compatible with one another? What kind of gotchas and corner cases should I be aware of when bringing a multi-library project up to speed with the most recent Xcode tools?

推荐答案

Clang与ABI生成的代码兼容。 Clang还包含一些较新的Objective-C ABI的实验性支持，但编译新的ABI需要标记，生成的代码可以与GCC生成的代码混合使用。

Clang is ABI-compatible with code generated by gcc. Clang also includes experimental support for some newer Objective-C ABIs, but compiling for the newer ABI requires flags, and generated code can be mixed with GCC-generated code anyway.

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