sysutils/tmate: Add BACKSPACE option

- Add LICENSE

PR:		248511

sysutils/tmate/Makefile

@@ -1,12 +1,15 @@
 PORTNAME=	tmate
 PORTVERSION=	2.4.0
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	sysutils
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	Instant terminal sharing
 WWW=		https://tmate.io/
 
+LICENSE=	ISCL
+LICENSE_FILE=	${WRKSRC}/COPYING
+
 LIB_DEPENDS=	libevent.so:devel/libevent \
 		libmsgpackc.so:devel/msgpack-c \
 		libssh.so:security/libssh
@@ -14,11 +17,18 @@ LIB_DEPENDS=	libevent.so:devel/libevent \
 USES=		autoreconf compiler:c11 ncurses pkgconfig
 USE_GITHUB=	yes
 GH_ACCOUNT=	tmate-io
+USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=	yes
-USE_LDCONFIG=	yes
+
 LDFLAGS+=	-lexecinfo
 
 PLIST_FILES=	bin/tmate man/man1/tmate.1.gz
 
+OPTIONS_DEFINE=	BACKSPACE
+
+BACKSPACE_DESC=	Build with tty/keys patch
+
+BACKSPACE_EXTRA_PATCHES=	${PATCHDIR}/extra-patch-tty-keys.c
+
 .include <bsd.port.mk>

sysutils/tmate/files/extra-patch-tty-keys.c

@@ -0,0 +1,11 @@
+--- tty-keys.c.orig	2023-06-02 17:59:27 UTC
++++ tty-keys.c
+@@ -572,8 +572,6 @@ first_key:
+ 	 * used. termios should have a better idea.
+ 	 */
+ 	bspace = tty->tio.c_cc[VERASE];
+-	if (bspace != _POSIX_VDISABLE && key == bspace)
+-		key = KEYC_BSPACE;
+ 
+ 	goto complete_key;
+