Index: head/games/3dc/Makefile
===================================================================
--- head/games/3dc/Makefile	(revision 374384)
+++ head/games/3dc/Makefile	(revision 374385)
@@ -1,39 +1,40 @@
 # Created by: Andrey Zakhvatov
 # $FreeBSD$
 
 PORTNAME=	3dc
 PORTVERSION=	0.8.1
 PORTREVISION=	3
 CATEGORIES=	games
 MASTER_SITES=	SUNSITE/games/strategy
 DISTNAME=	3Dc-${PORTVERSION}
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	3-Dimensional Chess for X Window System
 
 LICENSE=	GPLv2 # or later
 LICENSE_FILE=	${WRKSRC}/../GPL
 
 LIB_DEPENDS=	libXaw3d.so:${PORTSDIR}/x11-toolkits/Xaw3d
 
 USES=		perl5
 USE_PERL5=	build
 USE_XORG=	x11 xaw xext xmu xpm xt
 WRKSRC=		${WRKDIR}/3Dc/src
+DOCSDIR=	${PREFIX}/share/doc/3Dc
 
 OPTIONS_DEFINE=	DOCS
 
 post-patch:
 .for file in init.c main.c piece.c stack.c xif.c
 	@${REINPLACE_CMD} -i '' -e 's|malloc.h|stdlib.h|' \
 		${WRKSRC}/${file}
 .endfor
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/3Dc ${STAGEDIR}${PREFIX}/bin
-	@${MKDIR} ${STAGEDIR}${PREFIX}/share/doc/3Dc
+	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 .for file in 3Dc-rules.html ACKNOWLEDGEMENTS GPL README TODO
-	${INSTALL_DATA} ${WRKSRC}/../${file} ${STAGEDIR}${PREFIX}/share/doc/3Dc
+	${INSTALL_DATA} ${WRKSRC}/../${file} ${STAGEDIR}${DOCSDIR}
 .endfor
 
 .include <bsd.port.mk>
Index: head/games/3dc/pkg-plist
===================================================================
--- head/games/3dc/pkg-plist	(revision 374384)
+++ head/games/3dc/pkg-plist	(revision 374385)
@@ -1,6 +1,6 @@
 bin/3Dc
-%%PORTDOCS%%share/doc/3Dc/3Dc-rules.html
-%%PORTDOCS%%share/doc/3Dc/ACKNOWLEDGEMENTS
-%%PORTDOCS%%share/doc/3Dc/GPL
-%%PORTDOCS%%share/doc/3Dc/README
-%%PORTDOCS%%share/doc/3Dc/TODO
+%%PORTDOCS%%%%DOCSDIR%%/3Dc-rules.html
+%%PORTDOCS%%%%DOCSDIR%%/ACKNOWLEDGEMENTS
+%%PORTDOCS%%%%DOCSDIR%%/GPL
+%%PORTDOCS%%%%DOCSDIR%%/README
+%%PORTDOCS%%%%DOCSDIR%%/TODO