Index: head/sysutils/screen/Makefile
===================================================================
--- head/sysutils/screen/Makefile	(revision 432409)
+++ head/sysutils/screen/Makefile	(revision 432410)
@@ -1,102 +1,103 @@
 # Created by: Andrey Chernov <ache@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	screen
 PORTVERSION=	4.5.0
+PORTREVISION=	1
 CATEGORIES=	sysutils
 MASTER_SITES=	http://ftp.gnu.org/gnu/screen/ \
 		ftp://ftp.gnu.org/gnu/screen/ \
 		ftp://gnu.mirror.iweb.com/screen/ \
 		http://gnu.mirror.iweb.com/screen/ \
 		http://mirror.sdunix.com/gnu/ \
 		ftp://mirrors.kernel.org/gnu/screen/ \
 		http://komquats.com/distfiles/ \
 		http://people.freebsd.org/~cy/distfiles/ \
 		GNU
 
 MAINTAINER=	cy@FreeBSD.org
 COMMENT=	Multi-screen window manager
 
 LICENSE=	GPLv3
 
 OPTIONS_DEFINE=		INFO MAN NETHACK XTERM_256 SHOWENC SYSTEM_SCREENRC
 OPTIONS_DEFAULT=	INFO MAN NETHACK XTERM_256 SOCKETS SYSTEM_SCREENRC
 OPTIONS_SINGLE=		IPC
 OPTIONS_SINGLE_IPC=	SOCKETS NAMED_PIPES
 INFO_DESC=		Build and install info documentation
 MAN_DESC=		Build and install man pages
 NETHACK_DESC=		Enable nethack-style messages
 XTERM_256_DESC=		Enable support for 256 colour xterm
 SHOWENC_DESC=		Show encoding on the status line
 SOCKETS_DESC=		Use new (4.2.1+) sockets for IPC (default)
 NAMED_PIPES_DESC=	Use legacy (4.0.3) named pipes for IPC (override)
 SYSTEM_SCREENRC_DESC=	Install system screenrc with helpful status line
 
 OPTIONS_SUB=
 
 USES=		gmake cpe ncurses
 
 CPE_VENDOR=	gnu
 
 .include <bsd.port.options.mk>
 
 GNU_CONFIGURE=	yes
 .if ${PORT_OPTIONS:MMAN}
 MAKE_ARGS+=	WITH_MAN=1
 PLIST_SUB+=	MAN=""
 .else
 PLIST_SUB+=	MAN="@comment"
 .endif
 .if ${PORT_OPTIONS:MINFO}
 INFO=		screen
 MAKE_ARGS+=	WITH_INFO=1
 .endif
 
 # Enables support for 256 colour xterm.  Note that you may need to
 # set up a custom termcap entry or .screenrc which modifies termcap
 # to contain the following: Co#256:AB=\E[48;5;%dm:AF=\E[38;5;%dm
 #
 .if ${PORT_OPTIONS:MXTERM_256}
 CFLAGS+=	-DCOLORS256
 .endif
 
 .if ! ${PORT_OPTIONS:MNETHACK}
 CFLAGS+=	-DNONETHACK
 .endif
 
 # show encoding on the status line via option "showenc"
 .if ${PORT_OPTIONS:MSHOWENC}
 EXTRA_PATCHES+=	${FILESDIR}/opt-showencoding
 .endif
 
 post-patch:
 	@${RM} ${WRKSRC}/doc/screen.info*
 	@${REINPLACE_CMD} -e 's|/dev/ptmx|/nonexistent|' ${WRKSRC}/configure
 
 # Bug 191029:	Users can choose whether to use sockets or named pipes.
 # 		Choose sockets if you don't know what the difference is.
 # 		Choose named pipes if your environment is heterogeneous,
 #		using both screen 4.0.3 and 4.2.1.
 # Bug 191017
 post-configure-NAMED_PIPES-on:
 	@${ECHO_CMD} '#define NAMEDPIPE 1' >> ${WRKSRC}/config.h
 	@${ECHO_CMD} User selected named pipes override set.
 
 ETCDIR?=	${PREFIX}/etc
 
 post-install:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	${INSTALL_DATA} ${WRKSRC}/etc/etcscreenrc \
 		${STAGEDIR}${EXAMPLESDIR}/screenrc.sample-1
 	${INSTALL_DATA} ${FILESDIR}/screenrc.sample \
 		${STAGEDIR}${EXAMPLESDIR}/screenrc.sample-2
 	@${MKDIR} ${STAGEDIR}${ETCDIR}
 .if ${PORT_OPTIONS:MSYSTEM_SCREENRC}
 	${INSTALL_DATA} ${FILESDIR}/screenrc.sample \
 		${STAGEDIR}${ETCDIR}/screenrc.sample
 .else
 	${INSTALL_DATA} ${WRKSRC}/etc/etcscreenrc \
 		${STAGEDIR}${ETCDIR}/screenrc.sample
 .endif
 
 .include <bsd.port.mk>
Index: head/sysutils/screen/files/patch-screen.c
===================================================================
--- head/sysutils/screen/files/patch-screen.c	(revision 432409)
+++ head/sysutils/screen/files/patch-screen.c	(revision 432410)
@@ -1,11 +1,26 @@
 --- screen.c.orig	2017-01-17 11:28:29.397404660 -0800
-+++ screen.c	2017-01-18 04:54:50.874421000 -0800
-@@ -2222,7 +2222,7 @@
++++ screen.c	2017-01-24 17:31:24.342944000 -0800
+@@ -674,11 +674,14 @@
+               if (strlen(screenlogfile) > PATH_MAX)
+                 Panic(0, "-L: logfile name too long. (max. %d char)", PATH_MAX);
+ 
++#if 0
++/* see https://lists.gnu.org/archive/html/screen-devel/2017-01/msg00025.html */
+               FILE *w_check;
+               if ((w_check = fopen(screenlogfile, "w")) == NULL)
+                 Panic(0, "-L: logfile name access problem");
+               else
+                 fclose(w_check);
++#endif
+             }
+             nwin_options.Lflag = 1;
+             break;
+@@ -2222,7 +2225,7 @@
    pn2 = pn = p + padlen;
    r = winmsg_numrend;
    while (p >= buf) {
 -    if (r && *p != 127 && p - buf == winmsg_rendpos[r - 1]) {
 +    if (r && p - buf == winmsg_rendpos[r - 1]) {
        winmsg_rendpos[--r] = pn - buf;
        continue;
      }