macos 在 Mac OS X Lion 中使用 gcc 而不是 llvm-gcc
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Using gcc not llvm-gcc with Mac OS X Lion
提问by prosseek
gccis symbolically linked to llvm-gccon Mac OS X Lion.
gccllvm-gcc在 Mac OS X Lion 上象征性地链接到。
prosseek ~> ls -alF /usr/bin/gcc
lrwxr-xr-x 1 root wheel 12 Nov 12 14:39 /usr/bin/gcc@ -> llvm-gcc-4.2
How can I setup to use gcc-4.2when gccis called?
如何设置使用gcc-4.2whengcc被调用？
采纳答案by prosseek
There seems to be a way to use gcc with Xcode 4.2 - http://caiustheory.com/install-gcc-421-apple-build-56663-with-xcode-42
似乎有一种方法可以在 Xcode 4.2 中使用 gcc - http://caiustheory.com/install-gcc-421-apple-build-56663-with-xcode-42
回答by Ned Deily
As of Xcode 4.2 in Lion, Apple no longer ships its previous version of gcc-4.2, which was in Xcode 4.1 and earlier versions. It now only ships llvm-gcc(gcc front-end with llvmcode backend) and clang(clang front-end with llvmbackend). While it is possible to install legacy versions of vanillaGNU gcc-4.2 from other sources, like MacPorts, (and without disturbing /usr/bin), Apple has made it clear that they aren't going to be supporting gccanymore and that they want developers and users to move to clang.
从 Lion 中的 Xcode 4.2 开始，Apple 不再提供gcc-4.2Xcode 4.1 及更早版本中的先前版本。它现在只提供llvm-gcc(gcc front-end with llvmcode backend) 和clang(clang front-end with llvmbackend)。虽然可以从 MacPorts 等其他来源安装传统版本的vanillaGNU gcc-4.2（并且不会打扰/usr/bin），但 Apple 已明确表示他们将不再提供支持gcc，并且他们希望开发人员和用户能够移至clang.
回答by fikovnik
I experienced some problems in compiling stuff (condor for instance) with both llvm-gcc and clang os I had to get the original gcc.
我在使用 llvm-gcc 和 clang os 编译东西（例如 condor）时遇到了一些问题，我必须获得原始的 gcc。
I installed the version 4.6 using homebrewhttps://raw.github.com/adamv/homebrew-alt/master/duplicates/gcc.rb
我使用自制软件https://raw.github.com/adamv/homebrew-alt/master/duplicates/gcc.rb安装了 4.6 版
brew install https://raw.github.com/adamv/homebrew-alt/master/duplicates/gcc.rb
回答by Craig B.
I personally just use the Apple gcc, llvm or not, to build the latest gcc available. Even if /usr/bin/gcc were really gcc and not a wrapper over some llvm build, it's still crazy old. I documented my experience with the build process here.
我个人只是使用 Apple gcc，不管是否使用 llvm，来构建可用的最新 gcc。即使 /usr/bin/gcc 真的是 gcc 而不是一些 llvm 构建的包装器，它仍然是疯狂的旧。我在这里记录了我在构建过程中的经验。
