It seems backlink(.) doesn't work, that is, it doesn't match pages linked to from the current page.

If I have two test pages, foo, which links to bar, then (on the foo page):

• backlink(foo) lists 'bar'
• backlink(.) lists nothing

tested with 3.20120109.

— Jon

The attached patch should fix it:

applied thanks --Joey

From 30512ac5f6a724bafb1095ab246e0648999f7b6c Mon Sep 17 00:00:00 2001
From: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Date: Fri, 13 Jan 2012 11:02:11 +0100
Subject: [PATCH] backlink(.) should behave like backlink(<current page>)

Since commit c4d4cad3befbbd444d094cbeb0b6ebba3910a025, the single dot in
a pagespec can be used to mean the current page. While this worked
correctly in link() it didn't work in backlink(). Fix this by explicitly
checking the testpage in backlink against . and replacing it with the
current location if necessary.
---
 IkiWiki.pm |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 08e242a..bc56501 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -2647,8 +2647,14 @@ sub match_link ($$;@) {
 }

 sub match_backlink ($$;@) {
-   my $ret=match_link($_[1], $_[0], @_);
-   $ret->influences($_[1] => $IkiWiki::DEPEND_LINKS);
+   my $page=shift;
+   my $testpage=shift;
+   my %params=@_;
+   if ($testpage eq '.') {
+       $testpage = $params{'location'}
+   }
+   my $ret=match_link($testpage, $page, @_);
+   $ret->influences($testpage => $IkiWiki::DEPEND_LINKS);
    return $ret;
 }

-- 
1.7.8.rc2.253.gdbf3

(you need to re-make IkiWiki for it to work)