games/xtron: unbreak on 13+, minor modernization

games/xtron/Makefile

@@ -5,15 +5,14 @@ PORTVERSION=	1.1a
 PORTREVISION=	3
 CATEGORIES=	games
 MASTER_SITES=	SUNSITE/games/arcade
-EXTRACT_SUFX=	.tgz
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	Avoid running into walls, your own tail, and that of your opponent
 
-BROKEN_FreeBSD_13=	duplicate symbol: b
-BROKEN_FreeBSD_14=	duplicate symbol: b
+LICENSE=	GPLv1+
+LICENSE_FILE=	${WRKSRC}/COPYING
 
-USES=		xorg
+USES=		xorg tar:tgz
 USE_XORG=	x11 xpm
 
 PLIST_FILES=	bin/${PORTNAME} lib/X11/app-defaults/Tron
@@ -34,10 +33,12 @@ post-patch:
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/${PORTNAME} ${STAGEDIR}${PREFIX}/bin
-	${MKDIR} ${STAGEDIR}${DATADIR}
+	@${MKDIR} ${STAGEDIR}${DATADIR}
 	${INSTALL_DATA} ${WRKSRC}/pixmaps/* ${STAGEDIR}${DATADIR}/
 	${INSTALL_DATA} ${WRKSRC}/xtronrc ${STAGEDIR}${PREFIX}/lib/X11/app-defaults/Tron
-	${MKDIR} ${STAGEDIR}${DOCSDIR}
+
+do-install-DOCS-on:
+	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${WRKSRC}/CHANGES ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${WRKSRC}/README ${STAGEDIR}${DOCSDIR}
 

games/xtron/files/patch-xtron.c

@@ -0,0 +1,12 @@
+--- xtron.c.orig	1995-04-16 12:48:44 UTC
++++ xtron.c
+@@ -21,6 +21,9 @@
+ 
+ #include "xtron.h"
+ 
++struct Player p[2];
++struct Board b;
++
+ void plr_setup(void)
+ {
+   int i;

games/xtron/files/patch-xtron.h

@@ -0,0 +1,16 @@
+--- xtron.h.orig	1995-04-16 12:48:20 UTC
++++ xtron.h
+@@ -40,11 +40,11 @@ struct Player {
+   int alive;
+   enum directions plr_dir;
+   enum play_types plr_type; 
+-} p[2];
++};
+ 
+ struct Board {
+   short int contents[200][200];
+-} b;
++};
+  
+ void plr_setup(void);
+ int plr_checkmove(int p_num, int new_val, int axis_type, enum directions dir);