diff --git a/comms/xnecview/Makefile b/comms/xnecview/Makefile
index 5bb0b3595ce4..b64412397a47 100644
--- a/comms/xnecview/Makefile
+++ b/comms/xnecview/Makefile
@@ -1,23 +1,25 @@
 PORTNAME=	xnecview
-PORTVERSION=	1.36
-PORTREVISION=	4
+DISTVERSION=	1.37
 CATEGORIES=	comms hamradio
-MASTER_SITES=	http://wwwhome.cs.utwente.nl/%7Eptdeboer/ham/xnecview/
+MASTER_SITES=	https://wwwhome.cs.utwente.nl/%7Eptdeboer/ham/xnecview/
 
 MAINTAINER=	xride@FreeBSD.org
 COMMENT=	X11 viewer of NEC2 input and output data
 WWW=		https://wwwhome.cs.utwente.nl/%7Eptdeboer/ham/xnecview/
 
+LICENSE=	GPLv2
+LICENSE_FILE=	${WRKSRC}/COPYING
+
 LIB_DEPENDS=	libpng.so:graphics/png
 
 USES=		gmake gnome pkgconfig tar:tgz
 USE_GNOME=	gtk20
 
 PLIST_FILES=	bin/xnecview share/man/man1/xnecview.1.gz
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/xnecview ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_MAN} ${WRKSRC}/xnecview.man \
 		${STAGEDIR}${PREFIX}/share/man/man1/xnecview.1
 
 .include <bsd.port.mk>
diff --git a/comms/xnecview/distinfo b/comms/xnecview/distinfo
index 5b6fda5d2f6e..52de3cdfa90b 100644
--- a/comms/xnecview/distinfo
+++ b/comms/xnecview/distinfo
@@ -1,2 +1,3 @@
-SHA256 (xnecview-1.36.tgz) = be2837cedb1526b90f846c3205503858c7471434c678dcd9ce848415dfd76e86
-SIZE (xnecview-1.36.tgz) = 79535
+TIMESTAMP = 1742329895
+SHA256 (xnecview-1.37.tgz) = 4e2cefa5887260845a09d44edab5ff9799d5d091857cf8af0a9a590cf35951f0
+SIZE (xnecview-1.37.tgz) = 79005
diff --git a/comms/xnecview/files/patch-Makefile b/comms/xnecview/files/patch-Makefile
index 2492b0a3a034..3fad29347c07 100644
--- a/comms/xnecview/files/patch-Makefile
+++ b/comms/xnecview/files/patch-Makefile
@@ -1,24 +1,24 @@
---- Makefile.orig	Mon Mar 27 22:38:37 2006
-+++ Makefile	Mon Jun  5 15:37:15 2006
-@@ -3,15 +3,16 @@
+--- Makefile.orig	2006-03-27 20:38:37 UTC
++++ Makefile
+@@ -3,15 +3,16 @@ PNG	= yes
  
  
  
 -CC	= gcc
 -CFLAGS	= -O2 -g -Wall `pkg-config gtk+-2.0 --cflags`
 +CC	?= gcc
 +CFLAGS	+= `pkg-config gtk+-2.0 --cflags`
  
 -LD	= $(CC)
 -LDFLAGS	= `pkg-config gtk+-2.0 --libs` -lm
 +LD	?= $(CC)
 +LDFLAGS	+= `pkg-config gtk+-2.0 --libs` -lm
  
  ifeq ($(PNG),yes)
  CFLAGS	+= -DHAVE_LIBPNG
 -LDFLAGS	+= -lpng
 +CFLAGS	+= `pkg-config --cflags libpng`
 +LDFLAGS    += `pkg-config --libs libpng`
  endif
  
  SRCS	= xnecview.c xwin.c parse_input.c parse_output.c draw.c draw_opaque.c freqplot.c postscript.c icon.xbm
diff --git a/comms/xnecview/files/patch-draw.c b/comms/xnecview/files/patch-draw.c
index c0c550306b92..b660982b7ae1 100644
--- a/comms/xnecview/files/patch-draw.c
+++ b/comms/xnecview/files/patch-draw.c
@@ -1,11 +1,11 @@
---- draw.c.orig	Mon Jul 21 21:49:28 2003
-+++ draw.c	Fri Mar 17 17:59:24 2006
-@@ -605,7 +605,7 @@
+--- draw.c.orig	2020-01-11 15:14:27 UTC
++++ draw.c
+@@ -615,7 +615,7 @@ void draw_gain_phi(int j,Radpattern *rp)
  #define R270 (1.5*M_PI)
  #define R360 (2*M_PI)
  
 -#include <sys/timeb.h>
 +#include <sys/time.h>
  
  void draw_gain(int ie,Radpattern *rp)
  {
diff --git a/comms/xnecview/files/patch-parse_input.c b/comms/xnecview/files/patch-parse_input.c
index e3473abe3e32..3a20f4bbf0eb 100644
--- a/comms/xnecview/files/patch-parse_input.c
+++ b/comms/xnecview/files/patch-parse_input.c
@@ -1,19 +1,19 @@
---- parse_input.c.orig	Mon Jun  5 08:56:55 2006
-+++ parse_input.c	Mon Jun  5 08:57:56 2006
-@@ -527,6 +527,7 @@
+--- parse_input.c.orig	2020-01-12 14:16:26 UTC
++++ parse_input.c
+@@ -525,6 +525,7 @@ int read_nec_SC(char *s)     /* SC -> continuation of 
  int read_nec_SC(char *s)     /* SC -> continuation of SM, SP, or SC */
  {
     Surface *su;
 +   Surface *suLast;
     int ns;
     Point p3;
     int n;
-@@ -575,7 +576,7 @@
+@@ -573,7 +574,7 @@ int read_nec_SC(char *s)     /* SC -> continuation of 
        case 'C':
           n=sscanf(s,"SC%*i%d%g%g%g%g%g%g",&ns,&su->p2.x,&su->p2.y,&su->p2.z,&su->p3.x,&su->p3.y,&su->p3.z);
           if (n!=7 && n!=4) return Err_scan;
 -         Surface *suLast=surfaces+(numsurfaces-2);
 +         suLast=surfaces+(numsurfaces-2);
           su->p0=suLast->p3;
           su->p1=suLast->p2;
           updateextremes(&su->p2);
diff --git a/comms/xnecview/files/patch-xwin.c b/comms/xnecview/files/patch-xwin.c
deleted file mode 100644
index 6d56247a50ce..000000000000
--- a/comms/xnecview/files/patch-xwin.c
+++ /dev/null
@@ -1,11 +0,0 @@
---- xwin.c.orig	2011-07-26 00:03:37.000000000 +0200
-+++ xwin.c	2012-05-01 08:33:19.000000000 +0200
-@@ -277,7 +277,7 @@
-       fclose(f);
-       return 1;
-    }
--   if (setjmp(pp->jmpbuf)) {
-+   if (setjmp(png_jmpbuf(pp))) {
-       png_destroy_write_struct(&pp,&ip);
-       fclose(f);
-       gdk_image_destroy(image);
diff --git a/comms/xnecview/pkg-descr b/comms/xnecview/pkg-descr
index e1b286f5165e..c5e037ed4f0b 100644
--- a/comms/xnecview/pkg-descr
+++ b/comms/xnecview/pkg-descr
@@ -1,3 +1,3 @@
 Xnecview is a program for visualizing the input and output files of the NEC
-antenna simulation software. It runs on Linux/Unix systems with the X window
-system.
+antenna simulation software. It runs on GNU/Linux and Unix systems with the
+X window system.