--- irc/tr-ircd/Makefile
+++ irc/tr-ircd/Makefile
@@ -42,7 +42,7 @@
 .include <bsd.port.pre.mk>
 
 .if ${OSVERSION} >= 400014 && !defined(WITHOUT_IPV6)
-CONFIGURE_ARGS+=--enable-ipv6
+#CONFIGURE_ARGS+=--enable-ipv6
 .endif
 
 post-patch: