=over =item wait X Behaves like the wait(2) system call on your system: it waits for a child process to terminate and returns the pid of the deceased process, or C<-1> if there are no child processes. The status is returned in C<$?> and C<{^CHILD_ERROR_NATIVE}>. Note that a return value of C<-1> could mean that child processes are being automatically reaped, as described in L. =back