(oop_sys_run): Clamp the value of the tv_sec field of the select

	timeout argument to 3600 seconds, to check if very large values
	is the reason that FreeBSD returns EINVAL here.  (Bug 1065).

src/libraries/liboop/sys.c

@@ -344,7 +344,13 @@ void *oop_sys_run(oop_source_sys *sys) {
 		}
 
 		assert(ptv == NULL
-		       || (ptv->tv_usec >= 0 && ptv->tv_usec < 1000000));
+		       || (ptv->tv_usec >= 0 && ptv->tv_usec < 1000000
+			   && ptv->tv_sec >= 0));
+		/* FIXME (bug 1065): FreeBSD seems to have problem
+		   with too large tv_sec values.  It returns EINVAL.
+		   Does this fix the problem? */
+		if (ptv != NULL && ptv->tv_sec > 3600)
+		    prv->tv_sec = 3600;
 		do
 		{
 			assert(ptv == NULL