An error occurred while installing mysql2 (0.5.3), and Bundler cannot continue. code example

Example 1: An error occurred while installing mysql2 (0.5.3)

$ bundle config --local build.mysql2 "--with-ldflags=-L/usr/local/opt/openssl/lib --with-cppflags=-I/usr/local/opt/openssl/include"

Example 2: An error occurred while installing mysql (2.9.1), and Bundler cannot continue

gem install mysql -v '2.9.1' -- --with-cflags=\"-I<openssl_path>/include\" --with-ldflags=\"-L<openssl_path>/lib\"