Installed, just not linked

Question

Note: I\'m not so good at using shell.

I was trying to install Valgrind using brew on Yosemite.

brew install --HEAD valgrind<

Answer 1

brew install cocoapods --build-from-source
brew link --overwrite cocoapods

The only commands that worked for me on after upgrading to MAC OS Mojave 10.14.6

Answer 2

Here is what I tried and it worked:

$ brew link --overwrite sdl
Linking /usr/local/Cellar/sdl/1.2.15...
Error: Could not symlink lib/pkgconfig/sdl.pc
/usr/local/lib/pkgconfig is not writable.

Looked for pkgconfig: (after chmod 750)

drwxr-xr-x   4 root           wheel   136B Mar 30  2013 pkgconfig

I tried chown as below:

$ sudo chown -R  avkashchauhan:admin /usr/local/lib/pkgconfig

it should look like as below:

drwxr-xr-x   4 avkashchauhan  admin   136B Mar 30  2013 pkgconfig

After I tried it:

$ brew link sdl                                                                                                                                                                                                                    
Linking /usr/local/Cellar/sdl/1.2.15... 182 symlinks created

Answer 3

First run

brew link <package>

If it gives an error, try for an automated diagnosis

brew doctor

brew doctor gives a list of problems that could be leading to errors in installation process.

To fix problems in case of conflicting files, run to get a list of all actions which will be performed by overwrite without actually performing them.

To list all files that would be deleted:

  brew link --overwrite --dry-run <package>

followed by this run which will execute the overwrite, assuming you feel that the actions performed by overwrite will take your system to a more stable state.

To force the link and overwrite all conflicting files:

 brew link --overwrite <package>

Answer 4

If none of above the solution works, try this.

sudo chown -R $USER:admin /usr/local
brew link <package-name>