the problem appears during MaxScale build attempt for Fedora 19/20:
The problem can be solved by installing "systemtap-sdt-devel" package.
The probes_mysql.h header file has the following content:
it looks like HAVE_DTRACE is defined during MariaDB build and "probes_mysql_dtrace.h" is included into the build, but dependency on "systemtap-sdt-devel" is not set and "systemtap-sdt-devel" is not installed when mariadb-devel is installed.
It is possible the same happens in CentOS 7, but can't test now due to lack of libmysqld.a in CentOS7 packages.