- Don't tap homebrew/x11.
#brew install gcc
#export IMAKECPP=${brew_prefix}/bin/cpp
#export IMAKECPP=${brew_prefix}/bin/cpp-4.9
-brew install homebrew/versions/gcc49
+#brew install homebrew/versions/gcc49
+brew install gcc@4.9
#brew install homebrew/versions/gcc5
#brew install homebrew/versions/gcc6
chise_cc=${brew_prefix}/bin/gcc-4.9
#brew install https://raw.githubusercontent.com/veprbl/homebrew-x11/imake-fix/imake.rb
-brew tap homebrew/x11
+#brew tap homebrew/x11
brew install imake
brew -v install libtiff