How to install ruby-oci8?

Question

I\'m trying to install ruby-oci8 on OS X.

I\'ve tried installing both with and without sudo.

Error Message without sudo:

Answer 1

For some reason ruby-oci8 was not getting installed with instant client_11_2 for me. I tried all the answers suggested here and other places but couldnt get it done. Later I tried with instant client 12_1 and it worked without any issues.