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Is there a way to change the compiler to gcc from clang? I have the command line tools installed and am trying to use the terminal to compile instead of xcode itself.

user1698555
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  • As of Xcode 5 no gcc based compiler is installed as part of Xcode. With Xcode 4 I believe they had gcc alias to llvm-gcc. You have to either use an old version of Xcode or install gcc yourself. – bames53 Sep 24 '13 at 21:28
  • I have Xcode 4, but I don't know how to switch which compiler to use. By default it is using clang. – user1698555 Sep 24 '13 at 22:48
  • What command are you running? – bames53 Sep 24 '13 at 23:17
  • I use make. But when I type that in it says that clang doesn't recognize some of my flags, so it doesn't link correctly. – user1698555 Sep 24 '13 at 23:42

2 Answers2

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For MacPorts use:

port select --set gcc <group>, <version>

. . as detailed in this answer.

For Homebrew use:

Brew link and brew unlink the package versions that you prefer to use. Note that an "unlinked" package is still installed and usable from /usr/local/opt//, it's just not in the default path.

Community
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Jasper Blues
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  • You do not need to open a new Terminal, you can refresh the profile using `. ~/.profile` – OLL Dec 17 '13 at 14:42
  • Do not do either of these things. If you use mac ports use "port select --set gcc" This is referenced here https://trac.macports.org/wiki/UsingTheRightCompiler . – Jonathan Lisic Jun 02 '14 at 04:01
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You can install gcc using any ports system (e.g., MacPorts, http://www.macports.org/)

Ilya Verbin
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