安装nagios-plugin的时候，附带的参数说明：
[root@localhost nagios-plugins-1.4.13]# ./configure –with-nagios-user=nagios –with-nagios-group=nagios –prefix=/usr/local/nagios –with-ping-command=”/bin/ping” –with-mysql –without-ipv6
以上我在操作的过程中mysql提示找不到库文件，出错信息如下
“configure: WARNING: Skipping mysql plugin
configure: WARNING: install mysql client libs to compile this plugin (see REQUIREMENTS).”
后来把mysql_config复制到/usr/lib/pkgconfig后，顺利configure，看来还是路径的问题，其实在nagios-plugins-1.4.13的目录下的“REQUIREMENTS”文件已经详细说明了“check_mysql, check_mysql_query:
        – Requires the MySQL libraries available from
          http://www.mysql.org/
                Lib: libmysql, libmysqlclient
                Redhat Powertools Source: mysql-3.20.32a-3.i386.rpm, mysql-devel-3.20.32a-3.i386.rpm (these seem to be broken, howev
er)
                RPMS from www.mysql.org work better
          Must have mysql_config in PATH or specified with –with-mysql=DIR for DIR/bin/mysql_config”