update

diff --git a/doc/todo/different_search_engine.mdwn b/doc/todo/different_search_engine.mdwn
index a6364b43268bd4ba8b2094122cdd8fa72680d44d..81ca47547a53e3e498a2710b3b0c495088f821e0 100644 (file)
--- a/doc/todo/different_search_engine.mdwn
+++ b/doc/todo/different_search_engine.mdwn
@@ -67,7 +67,8 @@ built, every inlined item will get each hook run. And so a naive hook would
 index each of those items, even though none of them have necessarily
 changed. Date stamps are one possibility. Another would be to avoid having
 the hook not do any indexing when `%preprocessing` is set (Ikiwiki.pm would
-need to expose that variable.)
+need to expose that variable.) Another approach would be to use a
+needsbuild hook and only index the pages that are being built.
 
 #### cgi