Ubuntu - Solve "cannot find -lxxx" errors

In Linux (Ubuntu), whenever you install a package and you see the following error:

/usr/bin/ld: cannot find -lxxx

It means that your system is missing the "xxx" lib. In my case, the error occurs when I install MySQL-python package:

/usr/bin/ld: cannot find -lssl  

/usr/bin/ld: cannot find -lcrypto

So, the solution here is install those missing libraries. For my computer, I'just need to install the OpenSSL development lib, the libssl-dev:

sudo apt-get install libssl-dev

And everything will be OK.