Since dbm library was removed from ruby ports and replaced with

rubygem-dbm, add RUN_DEPENDS to rubygem-dbm.
Be aware that rubygem-dbm uses db5 by default for database back-end.
You may need to change OPTIONS of rubygem-dbm from BDB to LIBC and
build it by yourself.

net/dtcp/Makefile

@@ -2,7 +2,7 @@
 
 PORTNAME=	dtcp
 PORTVERSION=	20130602
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	net ipv6
 MASTER_SITES=	http://www.mahoroba.org/~ume/ipv6/
 
@@ -11,8 +11,9 @@ COMMENT=	Dynamic Tunnel Configuration Protocol daemon and client
 
 LICENSE=	BSD3CLAUSE
 
+RUN_DEPENDS=	rubygem-dbm>0:databases/rubygem-dbm
 .if defined(WITH_QPOPAUTH)
-RUN_DEPENDS=	qpopauth:mail/qpopper
+RUN_DEPENDS+=	qpopauth:mail/qpopper
 .endif
 
 USES=		uidfix