olepalm

Modify the mysql build options to use a `lzstd` library

Step one: 
Make a symlink of lzstd in the macports default install library 

`ln -fs /opt/local/lib/zstd /usr/local/lib/lzstd`

Step two: 
Allow install of mysql2 to use the symlinked lzstd version (and also quiet any implicit function declaration warnings to get cleaner output)