How do I use GCC on El Capitan?

I installed gcc via homebrew with no errors.

brew install homebrew/versions/gcc49
brew unlink gcc49 && brew link gcc49

But when I try to run gcc, clang is used instead.

~$:gcc --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 7.0.0 (clang-700.1.76)
Target: x86_64-apple-darwin15.0.0
Thread model: posix

Edit:

~$:type gcc
gcc is /usr/bin/gcc
~$:type /usr/bin/gcc
/usr/bin/gcc is /usr/bin/gcc
~$:echo $PATH
/usr/local/sbin:/Library/Frameworks/Python.framework/Versions/3.5/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/TeX/texbin

Instead of invoking using gcc you need to call gcc-4.9. Alternately you could create an alias for gcc to point to gcc-4.9(although that is risky).

For anyone who stumbles upon this currently (like I did), I found that I needed to locate my version of gcc (which I had installed with brew). This is annoying when gcc --version gives the clang version instead! To find the correct gcc version, run

$ ls /usr/local/opt/gcc/bin | grep gcc
gcc-10
gcc-ar-10
gcc-nm-10
...

So I had gcc-10. Whenever you wish to use gcc just replace it with gcc-10, e.g. man gcc-10. Of course you could write an alias for gcc to gcc-10, but this probably is not a great idea as Xcode seems to rely on the gcc --> clang simlink.

How do I use GCC on El Capitan?

Related

Recent Posts