Index: head/textproc/dwdiff/Makefile
===================================================================
--- head/textproc/dwdiff/Makefile	(revision 455819)
+++ head/textproc/dwdiff/Makefile	(revision 455820)
@@ -1,36 +1,35 @@
 # Created by: Alexander Logvinov <ports@logvinov.com>
 # $FreeBSD$
 
 PORTNAME=	dwdiff
 PORTVERSION=	2.0.9
 PORTREVISION=	8
 CATEGORIES=	textproc
 MASTER_SITES=	http://os.ghalkes.nl/dist/ \
 		http://fossies.org/unix/privat/
-EXTRACT_SUFX=	.tgz
 
 MAINTAINER=	danilo@FreeBSD.org
 COMMENT=	Delimited word diff program
 
 LICENSE=	GPLv3
+LICENSE_FILE=	${WRKSRC}/COPYING
 
 OPTIONS_DEFINE=	UNICODE NLS DOCS
 OPTIONS_DEFAULT=UNICODE
 OPTIONS_SUB=	yes
 
 NLS_CONFIGURE_WITH=	gettext
 NLS_USES=	gettext
 
 UNICODE_CONFIGURE_WITH=	unicode
 UNICODE_LIB_DEPENDS=	libicudata.so:devel/icu
 
+USES=		localbase:ldflags tar:tgz
 HAS_CONFIGURE=	yes
-CFLAGS+=	-I${LOCALBASE}/include
-LDFLAGS+=	-L${LOCALBASE}/lib
 CONFIGURE_ARGS=	--mandir=${MANPREFIX}/man
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|share/doc/${PORTNAME}-${PORTVERSION}|${DOCSDIR_REL}|' \
 		${WRKSRC}/Makefile.in
 
 .include <bsd.port.mk>
Index: head/textproc/dwdiff/pkg-descr
===================================================================
--- head/textproc/dwdiff/pkg-descr	(revision 455819)
+++ head/textproc/dwdiff/pkg-descr	(revision 455820)
@@ -1,14 +1,14 @@
 dwdiff is a diff program that operates at the word level instead of the line
 level. It is different from wdiff in that it allows the user to specify what
 should be considered whitespace, and in that it takes an optional list of
 characters that should be considered delimiters. Delimiters are single
 characters that are treated as if they are words, even when there is no
 whitespace separating them from preceding words or delimiters. dwdiff is
 mostly commandline compatible with wdiff. Only the --autopager, --terminal
 and --avoid-wraps options are not supported.
 
 The default output from dwdiff is the new text, with the deleted and inserted
 parts annotated with markers. Command line options are available to change
 both what is printed, and the markers.
 
-WWW: http://os.ghalkes.nl/dwdiff.html
+WWW: https://os.ghalkes.nl/dwdiff.html