Schmid, Wolfgang wrote:
1st: Typically I use [[w:de:pagename]] to access the german wikipedia. This link is expanded to http://en.wikipedia.org/wiki/de:pagename which is redirected to http://de.wikipedia.org/wiki/pagename and works well. There's another shortcut 'de' in interwiki.sql which I want to use and which should be expanded to http://de.wikipedia.org/wiki/ (the last URL above). When I use [[de:pagename]] to link to the german wiki no link to the foreign page (empty string) is shown in my wiki.
Maybe it's appearing on the left sidebar? Use [[:de:pagename]] for an inline link.