Index: head/security/gnupg/Makefile
===================================================================
--- head/security/gnupg/Makefile
+++ head/security/gnupg/Makefile
@@ -2,6 +2,7 @@
 
 PORTNAME=	gnupg
 PORTVERSION=	2.2.10
+PORTREVISION=	1
 CATEGORIES=	security
 MASTER_SITES=	GNUPG
 
@@ -31,6 +32,8 @@
 GNU_CONFIGURE=	yes
 INFO=		gnupg
 TEST_TARGET=	check
+
+SUB_FILES=	pkg-message
 
 OPTIONS_DEFINE=	DOCS GNUTLS LARGE_RSA LDAP NLS SCDAEMON SUID_GPG
 OPTIONS_DEFAULT=GNUTLS SCDAEMON
Index: head/security/gnupg/files/pkg-message.in
===================================================================
--- head/security/gnupg/files/pkg-message.in
+++ head/security/gnupg/files/pkg-message.in
@@ -0,0 +1,12 @@
+***************************************************************************
+GnuPG, when run on hosts without IPv6 connectivity, may fail to connect to
+dual-stack hkp servers [1].  As a workaround, add
+
+disable-ipv6
+
+to
+
+%%PREFIX%%/etc/dirmngr.conf
+
+[1] https://dev.gnupg.org/rGecfc4db3a2f8bc2652ba4ac4de5ca1cd13bfcbec
+***************************************************************************