MySQLEMBED build (candidate-6.0.0) fails on CentOS 5

12:34:11 [ 98%] Building CXX object plugins/mysql/CMakeFiles/mysqlembed.dir/mysqlembed.cpp.o
12:34:11 /mnt/ephemeral0/jenkins/workspace/CE-Candidate-Plugins-6.0.0-nightly-build/CE/centos-5.7-x86_64/HPCC-Platform/plugins/mysql/mysqlembed.cpp: In constructor ‘mysqlembed::MySQLEmbedFunctionContext::MySQLEmbedFunctionContext(const char*)’:
12:34:11 /mnt/ephemeral0/jenkins/workspace/CE-Candidate-Plugins-6.0.0-nightly-build/CE/centos-5.7-x86_64/HPCC-Platform/plugins/mysql/mysqlembed.cpp:1203:83: error: cannot convert ‘unsigned int*’ to ‘const char*’ for argument ‘3’ to ‘int mysql_options(MYSQL*, mysql_option, const char*)’
12:34:11                                      rc = mysql_options(*conn, optDef.option, &oval);
12:34:11                                                                                    ^
12:34:11 /mnt/ephemeral0/jenkins/workspace/CE-Candidate-Plugins-6.0.0-nightly-build/CE/centos-5.7-x86_64/HPCC-Platform/plugins/mysql/mysqlembed.cpp:1209:83: error: cannot convert ‘long unsigned int*’ to ‘const char*’ for argument ‘3’ to ‘int mysql_options(MYSQL*, mysql_option, const char*)’
12:34:11                                      rc = mysql_options(*conn, optDef.option, &oval);
12:34:11                                                                                    ^
12:34:11 make[2]: *** [plugins/mysql/CMakeFiles/mysqlembed.dir/mysqlembed.cpp.o] Error 1
12:34:11 make[1]: *** [plugins/mysql/CMakeFiles/mysqlembed.dir/all] Error 2