Error when trying to install app with mysql2 gem

Question

Im trying to install an open source rails 3.2.21 application that uses the mysql2 gem, but when i try and run the bundle commant I get the followin

Answer 1

The combination of commands solved it me. I am on Mojave.

brew reinstall openssl && brew link openssl --force

and then

gem install mysql2 -v '0.4.10' -- \
  --with-ldflags=-L/usr/local/opt/openssl/lib \
  --with-cppflags=-I/usr/local/opt/openssl/include