Getting this error and not sure what to do about it........

./pol: error while loading shared libraries: libmysqlclient.so.20: cannot open shared object file: No such file or directory

I seem to recall you can compile without sql support if you build your own binary.
However I did build in sql support. Seem to remember Debian was a little bit of trial and error with the sql, ssl and I think libz version.

Try the "dev" package below.
Hope you get it working.