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valgrind on mac El Capitan

I am trying to install valgrind on mac el captain. I used brew and I am successful in installing it. But it failed to link I used brew link valgrind but it says

"Error: Could not symlink include/valgrind/callgrind.h /usr/local/include/valgrind is not writable."


  1. This is a permissions issue when brew attempts to write to /usr/local/

    For a resolution, reset the permissions on your /usr/local/ as follows:

    sudo chown -R `whoami` /usr/local
    brew link --overwrite valgrind

    This is not really a valgrind-specific issue.