homebrew でインストールオプションを表示する
% brew options formula
% brew options ruby ruby --with-suffix Add a 19 suffix to commands --with-doc Install with the Ruby documentation --universal Compile a universal binary (arch=x86_64,i386)
% brew options formula
% brew options ruby ruby --with-suffix Add a 19 suffix to commands --with-doc Install with the Ruby documentation --universal Compile a universal binary (arch=x86_64,i386)