wt_3.3.3 failed to compile Ddo::mysqlend for supporting the newest version of MySQL
MySQL version：5.6.20_1, which is installed through homebrew package manager for MacOS (Mavericks, 10.9.4). Actually, after installation, only library of "libmysql" could not be found in the installation directory, while other libraries such as 'libmysqlclient' could be found.
There's only one library required, but it may have many different names depending on OS etc. Current Wt looks for one of these: mariadb libmariadb mariadbclient mysqlclient libmysql.
Set MYSQL_LIBRARY to the name that your installation is using.