Как сделать Apache hook на событие ДО форка child?

Есть только после форка:

Apache provides hooks into the child process initialization and exit handling. The child process initialization handler, installed with PerlChildInitHandler, is called just after the main server forks off a child but before the child has processed any incoming requests. The child exit handler, installed with PerlChildExitHandler, is called just before the child process is destroyed.

Как сделать до форка? Кто-нибудь такое делал?