Rewrote MySQL++ library- and header-finding autoconf macro to be in more modern style, and to fix a problem related to cached test results.
Rewrote MySQL++ library- and header-finding autoconf macro to be in more
modern style, and to fix a problem related to cached test results.


git-svn-id: 1a57124bbb9aca193a920d0ffd753d488afb922b@2583 5946f024-35f4-0310-b1b3-9a3be3380cfb

veprbl/mysqlpp,veprbl/mysqlpp,veprbl/mysqlpp