brew doctor output

brewdoc

Warning: "config" scripts exist outside your system or Homebrew directories.
`./configure` scripts often look for *-config scripts to determine if
software packages are installed, and what additional flags to use when
compiling and linking.

Having additional scripts in your path can confuse software installed via
Homebrew if the config script overrides a system or Homebrew provided
script of the same name. We found the following "config" scripts:

    /usr/local/MacGPG2/bin/gpg-error-config
    /usr/local/MacGPG2/bin/ksba-config
    /usr/local/MacGPG2/bin/libassuan-config
    /usr/local/MacGPG2/bin/libgcrypt-config
    /usr/local/MacGPG2/bin/libusb-config
    /usr/local/MacGPG2/bin/pth-config
Warning: You have unlinked kegs in your Cellar
Leaving kegs unlinked can lead to build-trouble and cause brews that depend on
those kegs to fail to run properly once built.

    aspell
    ossp-uuid