Index: devel/libgtop/Makefile
===================================================================
--- devel/libgtop/Makefile
+++ devel/libgtop/Makefile
@@ -22,8 +22,13 @@
 INSTALL_TARGET=	install-strip
 CONFIGURE_ARGS=	--enable-introspection
 
+.include <bsd.port.pre.mk>
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1200031
+EXTRA_PATCHES+=	${PATCHDIR}/extra-patch-ino64
+.endif
+
 INFO=		libgtop2
 
 PKGMESSAGE=	${FILESDIR}/pkg-message
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>
Index: devel/libgtop/files/extra-patch-ino64
===================================================================
--- devel/libgtop/files/extra-patch-ino64
+++ devel/libgtop/files/extra-patch-ino64
@@ -0,0 +1,41 @@
+--- sysdeps/freebsd/procopenfiles.c.orig	2014-10-12 07:17:26.000000000 +0000
++++ sysdeps/freebsd/procopenfiles.c	2017-04-22 17:17:54.862169000 +0000
+@@ -322,12 +322,12 @@
+ 				struct sockaddr_un *sun;
+ 
+ 				entry.type = GLIBTOP_FILE_TYPE_LOCALSOCKET;
+-				sun = (struct sockaddr_un *)&kif->kf_sa_local;
++				sun = (struct sockaddr_un *)&kif->kf_un.kf_sock.kf_sa_local;
+ 
+ 				if (sun->sun_path[0]) {
+ 					char *addrstr;
+ 
+-					addrstr = addr_to_string(&kif->kf_sa_local);
++					addrstr = addr_to_string(&kif->kf_un.kf_sock.kf_sa_local);
+ 					g_strlcpy(entry.info.localsock.name,
+ 						  addrstr,
+ 						  sizeof(entry.info.localsock.name));
+@@ -335,7 +335,7 @@
+ 				} else {
+ 					char *addrstr;
+ 
+-					addrstr = addr_to_string(&kif->kf_sa_peer);
++					addrstr = addr_to_string(&kif->kf_un.kf_sock.kf_sa_peer);
+ 					g_strlcpy(entry.info.localsock.name,
+ 						  addrstr,
+ 						  sizeof(entry.info.localsock.name));
+@@ -349,12 +349,12 @@
+ 					entry.type = GLIBTOP_FILE_TYPE_INETSOCKET;
+ 				else
+ 					entry.type = GLIBTOP_FILE_TYPE_INET6SOCKET;
+-				addrstr = addr_to_string(&kif->kf_sa_peer);
++				addrstr = addr_to_string(&kif->kf_un.kf_sock.kf_sa_peer);
+ 				g_strlcpy(entry.info.sock.dest_host,
+ 					  addrstr,
+ 					  sizeof(entry.info.sock.dest_host));
+ 				g_free(addrstr);
+-				entry.info.sock.dest_port = addr_to_port(&kif->kf_sa_peer);
++				entry.info.sock.dest_port = addr_to_port(&kif->kf_un.kf_sock.kf_sa_peer);
+ 			}
+ 		} else if (kif->kf_type == KF_TYPE_PIPE) {
+ 			entry.type = GLIBTOP_FILE_TYPE_PIPE;