How to enable debugging?

[J Scavok]

When I run mysqlimport with any of the debug options (--debug, --debug-check, --debug-info), I get an error message like this one:

[root@localhost ~]# mysqlimport -u root -p -h localhost --debug='d:t:o,/var/log/mysqlimport-debug.log' patentsview /var/lib/mysql-files/patent.tsv

mysqlimport: [ERROR] mysqlimport: Option 'debug=d:t:o,/var/log/mysqlimport-debug.log' used, but is disabled

What do I have to do to enable debugging?

If it requires a "debug build" of mysqld 5.7.11 and its tools, is there a pre-built YUM repo for this for CentOS 32-bit? (I already checked http://dev.mysql.com/downloads/repo/ but it is not clear to me which download I need for a "debug build".)

Thank you.