Reference:	https://github.com/nant/nant/issues/91
Obtained from:	https://github.com/nant/nant/commit/69c8ee96493c5d953212397c8ca06c2392372ca4
		https://github.com/nant/nant/commit/4ad065d009b043996d4ce2d25ce5031d81c6ce60

--- src/NDoc.Documenter.NAnt/NDoc.Documenter.NAnt.build.orig	2012-06-09 14:05:55 UTC
+++ src/NDoc.Documenter.NAnt/NDoc.Documenter.NAnt.build
@@ -11,6 +11,7 @@
         <!-- build main assembly -->
         <csc target="library" define="${current.build.defines}" warnaserror="${build.warnaserror}" debug="${build.debug}" output="${build.dir}/bin/${project::get-name()}.dll" doc="${build.dir}/bin/${project::get-name()}.xml">
             <nowarn>
+                <warning number="0612" />
                 <warning number="0618" />
                 <warning number="1591" />
                 <warning number="1572" />