Ticket #354: build PJLIB as dynamic libraries (.DSO) in Symbian

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1405 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjlib/include/pj/timer.h b/pjlib/include/pj/timer.h
index 6e4839c..a8b3eb6 100644
--- a/pjlib/include/pj/timer.h
+++ b/pjlib/include/pj/timer.h
@@ -253,6 +253,9 @@
  * Poll the timer heap, check for expired timers and call the callback for
  * each of the expired timers.
  *
+ * Note: polling the timer heap is not necessary in Symbian. Please see
+ * @ref PJ_SYMBIAN_OS for more info.
+ *
  * @param ht         The timer heap.
  * @param next_delay If this parameter is not NULL, it will be filled up with
  *		     the time delay until the next timer elapsed, or -1 in