Commented out the sigwait() call for BSDI. BSD/OS 3.1 does not have

the sigwait() function.

nsprpub/pr/src/pthreads/ptthread.c

@@ -1120,7 +1120,8 @@ static void suspend_signal_handler(PRIntn sig)
 	pthread_cond_signal(&me->suspendResumeCV);
 	while (me->suspend & PT_THREAD_SUSPENDED)
 	{
-#if !defined(FREEBSD) && !defined(NETBSD) && !defined(OPENBSD)  /*XXX*/
+#if !defined(FREEBSD) && !defined(NETBSD) && !defined(OPENBSD) \
+    && !defined(BSDI)  /*XXX*/
         PRIntn rv;
 	    sigwait(&sigwait_set, &rv);
 #endif