Ok, here's my best guess - it's been quite a while since I've had to do this, but here's what I remember - take it for what it's worth.

  1. do 'locate libmysqlclient'
       - on Red Hat, this lists some files and links under
         the /usr/lib/mysql directory.  Whatever directory
         gets listed there will be used in the next step.

  2. edit /etc/ld.so.conf
       - add '/usr/lib/mysql' to that file

  3. run 'ldconfig'
[download]

That should(???) get you past your 2nd error.

If you're on a Red Hat system and install the mysql rpm, the postinstall takes care of all that for you.

Hope this helps.