--- /usr/portage/tree/eclass/gnome2.eclass	2009-02-17 11:10:17.000000000 -0500
+++ gnome2.eclass	2009-03-29 14:32:28.000000000 -0400
@@ -66,8 +66,10 @@
 	fi
 
 	# Prevent a QA warning
-	if hasq doc ${IUSE} ; then
-		G2CONF="${G2CONF} $(use_enable doc gtk-doc)"
+	if [[ ${GCONF_GTKDOC} != 'no' ]] ; then
+		if hasq doc ${IUSE} ; then
+			G2CONF="${G2CONF} $(use_enable doc gtk-doc)"
+		fi
 	fi
 
 	# Avoid sandbox violations caused by misbehaving packages (bug #128289)