Index: databases/rrdtool/Makefile
===================================================================
--- databases/rrdtool/Makefile
+++ databases/rrdtool/Makefile
@@ -3,7 +3,7 @@
 
 PORTNAME=	rrdtool
 PORTVERSION=	1.7.0
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	databases graphics
 MASTER_SITES=	http://oss.oetiker.ch/rrdtool/pub/
 
@@ -20,7 +20,7 @@
 USE_RC_SUBR=	rrdcached
 USE_LDCONFIG=	yes
 GNU_CONFIGURE=	yes
-USES=		gmake groff libtool pathfix pkgconfig shebangfix
+USES=		gmake libtool pathfix pkgconfig shebangfix
 USE_GNOME=	glib20 libxml2
 INSTALL_TARGET=	install-strip
 
@@ -38,6 +38,10 @@
 RUBY_DESC=	Build RUBY bindings
 
 DEJAVU_RUN_DEPENDS=	dejavu>0:x11-fonts/dejavu
+
+DOCS_CONFIGURE_ENABLE=	docs
+DOCS_USES=		groff
+
 GRAPH_CONFIGURE_OFF=	--disable-rrdcgi --disable-rrd_graph
 GRAPH_LIB_DEPENDS=	libfreetype.so:print/freetype2 \
 			libpng.so:graphics/png