mysqld should not trap SIGTSTP if running with --gdb/--debug-gdb

I sometimes run mysqld directly in the console for debugging purposes and it would be very convenient if I could use Ctrl-Z in my shell to stop mysqld and engage my shell's job management after mysqld is started.

Are there any objections to or problems with incorporating sigaddset(&set,SIGTSTP) in mysqld.cc into the tests for TEST_SIGINT so that SIGTSTP isn't trapped by mysqld?