Defined to tell mod_tcpd is compatible with GNU General Public License
Of course it is. This function does nothing, but the fact it's declared
makes its GPL compatibility obvious. Having this declared is required.
Return value: none
— Function: void mod_tcpd_is_dlclose_safe ()
Defined to tell mod_tcpd has no dlclose issue, once can safely call
lt_dlclose on it when done with it, without risking any segfault.
Some other LW6 modules/shared libraries do have this problem.