Compiler version fixes and a case-statement cleanup so we build on OS X 10.6.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@10395 c06c8d41-db1a-0410-9941-cceddc491573

Created by  nlanza  on July 24, 2009
R4GPBJK7JFKCYMGQ6ZM2XIX4UCMGIXGALHGTK4CBIAXTLCQBKIDQC
Change contents