How can I resolve a permission error when installing gnuplot from homebrew?

Question

I am trying to install gnuplot on my mac. after trying brew install gnuplot, I get the following errors:

You must 'brew link lua jpeg' before gnuplot can be installed

And when I try brew link lua jpeg I get the following error:

Could not symlink file: /usr/local/Cellar/lua/5.1.4/include/lualib.h /usr/local/include is not writable. You should change its permissions.

Any suggestion? BTW, my XCode and brew are updated.

Let's see if someone knows an answer offhand, but if you would edit this to add the version of Xcode and OS X it works much better - current versions are very localized but questions about a specific combination can be very useful even a year or two down the road. — bmike♦, Nov 8 '12 at 18:19
Sounds like /usr/local wasn't set up with the user you're using to install Homebrew with. What user are you running brew as, and what's the output of ls -ld /usr/local /usr/local/include? — Andrew Janke, Apr 25 '13 at 19:15

Gaelan · Accepted Answer · 2013-07-03 01:25:50Z

1

sudo chown $(whoami) /usr/local/include
chmod +w /usr/local/include
brew link lua

answered Jul 3 '13 at 1:25

Gaelan

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