diff -ruN mysql-proxy.bak/Makefile mysql-proxy/Makefile
--- mysql-proxy.bak/Makefile    Mon Jul  2 04:51:29 2007
+++ mysql-proxy/Makefile        Wed Jul  4 14:11:22 2007
@@ -16,6 +16,9 @@
 
 LIB_DEPENDS=   event:${PORTSDIR}/devel/libevent \
                glib:${PORTSDIR}/devel/glib20
+BUILD_DEPENDS= ${NONEXISTENT}:${PORTSDIR}/databases/mysql50-server
+
+CONFLICTS=     mysql-server-3.* mysql-server-4.*
 
 CONFIGURE_ARGS+=       --with-lua --with-mysql
 CONFIGURE_ENV+=        CFLAGS="-I${LOCALBASE}/include -I${LUA_INCDIR}" \