gfortran command not found after installing with 'brew install gcc'

Question

I have Apple's Command Line Tools installed but that doesn't include gfortran. I have therefore installed gcc from homebrew (which includes gfortran)

brew install gcc

But then I get this warning

Warning: gcc-6.2.0 already installed, it's just not linked

So I try to link it

brew link gcc

with this result

Linking /usr/local/Cellar/gcc/6.2.0...
Error: Could not symlink share/man/man7/fsf-funding-6.7
/usr/local/share/man/man7 is not writable.

And here I'm stuck. I don't know how to resolve this error. How can I link gcc, or even better, why isn't it linked from the beginning?

This probably happens because of insufficient permissions. Look at this [post](http://stackoverflow.com/questions/14527521/brew-doctor-says-warning-usr-local-include-isnt-writable) — blackpen, Sep 12 '16 at 01:06

score 1 · Accepted Answer · edited May 23 '17 at 12:06

1

In the linked question I found this answer https://stackoverflow.com/a/37790578/2161477 which solved my problem.

As mentioned by blackpen in the comments, the problem arises due to insufficient permissions

sudo chown -R $(whoami) /usr/local

edited May 23 '17 at 12:06

Community

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answered Sep 12 '16 at 07:22

ADH89

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gfortran command not found after installing with 'brew install gcc'

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