brew reinstall php71 --build-from-source
brew switch jpeg 8d
cd $(brew --prefix)/Homebrew/Library/Taps/homebrew/homebrew-core
git checkout b231469
HOMEBREW_NO_AUTO_UPDATE=1 brew install jpeg
git checkout master
brew switch jpeg 8d
brew reinstall php71 --build-from-source
brew switch jpeg 8d
cd $(brew --prefix)/Homebrew/Library/Taps/homebrew/homebrew-core
git checkout b231469
HOMEBREW_NO_AUTO_UPDATE=1 brew install jpeg
git checkout master
brew switch jpeg 8d