--- Makefile	Thu Oct  6 09:44:34 2005
+++ Makefile.orig	Thu Oct  6 09:49:59 2005
@@ -21,7 +21,8 @@
 		RADIUS "Radius support" off \
 		MYSQL "MySQL support" off \
 		PGSQL "PostgreSQL support" off \
-		LDAP "OpenLDAP support" off
+		LDAP "OpenLDAP support" off \
+		IPV6 "IPV6 support" off
 
 .include <bsd.port.pre.mk>
 
@@ -94,6 +95,12 @@
 PLIST_SUB+=	SUB_LDAP=""
 .else
 PLIST_SUB+=	SUB_LDAP="@comment "
+.endif
+
+.if defined(WITH_IPV6)
+CONFIGURE_ARGS+=--with-ipv6
+.else
+CONFIGURE_ARGS+=--without-ipv6
 .endif
 
 CONFIGURE_ENV=	LOCALBASE=${LOCALBASE} LDFLAGS="-L${LOCALBASE}/lib" \