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What does "llvm-gcc-4.2" do in "/ usr" on my Yosemite system?

In /usr on my (migrated) Yosemite system, I have some old (2011-12) directories that look out of place for me:

 /usr/llvm-gcc-4.2 /usr/include/gcc/darwin/4.2

What is it? Are they current; can i get rid of them? I have the latest Xcode and command line tools installed, if that matters.

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These are Xcode command line tools, but llvm-gcc no longer in use, so it looks like they have not been cleared from the previous version.

I think it’s better to leave them alone, because I don’t see how they will cause the problem; however, if they seem to be causing problems, then mv them in xxx-DELETE_ME and see where you are in a few weeks. If everything is ok, then delete them.

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It's just a symlink to ring.

Go to / usr / bin and type ls -l | grep llvm ls -l | grep llvm , you should see llvm-gcc -> clangcc if it is simlink

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Source: https://habr.com/ru/post/1211614/

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