Apply RjY's patch in [2828451], slightly tweaked, to fix compilation.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@10452 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on July 28, 2009
WVU7VSSDMBRC6AUW7ZUG3MXUZZBSYT7JBUTWRUBR7B3VQS6TSFBAC
Change contents