Index: UPDATING
===================================================================
--- UPDATING	(revision 466368)
+++ UPDATING	(working copy)
@@ -5,6 +5,15 @@
 You should get into the habit of checking this file for changes each time
 you update your ports collection, before attempting any port upgrades.
 
+20180403:
+  AFFECTS: users of mail/postgrey
+  AUTHOR: ports.maintainer@evilphi.com
+
+  If you use any of the optional make.conf variables to specify the
+  postgrey user, group, db dir, or run dir when building the port, you will
+  need to change the prefix from PG_ to POSTGREY_*.  The variables were
+  renamed to solve a namespace collision with the PostgreSQL ports.
+
 20180401:
   AFFECTS: users of mail/dovecot and mail/dovecot-pigeonhole
   AUTHOR: adamw@FreeBSD.org
Index: mail/postgrey/Makefile
===================================================================
--- mail/postgrey/Makefile	(revision 466368)
+++ mail/postgrey/Makefile	(working copy)
@@ -3,7 +3,7 @@
 
 PORTNAME=	postgrey
 PORTVERSION=	1.37
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	mail
 MASTER_SITES=	http://postgrey.schweikert.ch/pub/ \
 		http://postgrey.schweikert.ch/pub/old/
@@ -30,21 +30,21 @@
 POD2MAN?=	pod2man
 PORTDOCS=	README Changes README.exim
 
-PG_DBDIR?=	/var/db/postgrey
-PG_GROUP?=	postgrey
-PG_RUNDIR?=	/var/run/postgrey
-PG_USER?=	postgrey
+POSTGREY_DBDIR?=	/var/db/postgrey
+POSTGREY_GROUP?=	postgrey
+POSTGREY_RUNDIR?=	/var/run/postgrey
+POSTGREY_USER?=		postgrey
 
-SUB_LIST=	PG_DBDIR=${PG_DBDIR} \
-		PG_RUNDIR=${PG_RUNDIR}
+SUB_LIST=	POSTGREY_DBDIR=${POSTGREY_DBDIR} \
+		POSTGREY_RUNDIR=${POSTGREY_RUNDIR}
 
-PLIST_SUB+=	PG_DBDIR=${PG_DBDIR} \
-		PG_GROUP=${PG_GROUP} \
-		PG_RUNDIR=${PG_RUNDIR} \
-		PG_USER=${PG_USER}
+PLIST_SUB+=	POSTGREY_DBDIR=${POSTGREY_DBDIR} \
+		POSTGREY_GROUP=${POSTGREY_GROUP} \
+		POSTGREY_RUNDIR=${POSTGREY_RUNDIR} \
+		POSTGREY_USER=${POSTGREY_USER}
 
-USERS=		${PG_USER}
-GROUPS=		${PG_GROUP}
+USERS=		${POSTGREY_USER}
+GROUPS=		${POSTGREY_GROUP}
 
 MANPAGES=	postgrey.1 policy-test.1 postgreyreport.1
 ETCFILES=	whitelist_clients whitelist_recipients
@@ -54,11 +54,11 @@
 OPTIONS_DEFINE=	DOCS
 
 post-patch:
-	@${REINPLACE_CMD} -e 's#nogroup#${PG_GROUP}#' \
+	@${REINPLACE_CMD} -e 's#nogroup#${POSTGREY_GROUP}#' \
 		-e 's#/etc/main.cf#/etc/postfix/main.cf#' ${WRKSRC}/postgrey
 	@${REINPLACE_CMD} -e 's#/etc/postfix#${PREFIX}&#' \
 		${WRKSRC}/postgrey ${WRKSRC}/postgrey_whitelist_*
-	@${REINPLACE_CMD} -e 's#/var/spool/postfix/postgrey#${PG_DBDIR}#' \
+	@${REINPLACE_CMD} -e 's#/var/spool/postfix/postgrey#${POSTGREY_DBDIR}#' \
 		${WRKSRC}/postgrey ${WRKSRC}/contrib/postgreyreport
 
 do-install:
@@ -69,8 +69,8 @@
 	${INSTALL_SCRIPT} ${WRKSRC}/policy-test ${STAGEDIR}${PREFIX}/sbin
 	${INSTALL_SCRIPT} ${WRKSRC}/contrib/postgreyreport \
 		${STAGEDIR}${PREFIX}/sbin
-	@${MKDIR} ${STAGEDIR}${PREFIX}/etc/postfix ${STAGEDIR}${PG_DBDIR} \
-		${STAGEDIR}${PG_RUNDIR}
+	@${MKDIR} ${STAGEDIR}${PREFIX}/etc/postfix ${STAGEDIR}${POSTGREY_DBDIR} \
+		${STAGEDIR}${POSTGREY_RUNDIR}
 .for i in ${ETCFILES}
 	${INSTALL_DATA} ${WRKSRC}/postgrey_${i} \
 		${STAGEDIR}${PREFIX}/etc/postfix/postgrey_${i}.sample
Index: mail/postgrey/pkg-plist
===================================================================
--- mail/postgrey/pkg-plist	(revision 466368)
+++ mail/postgrey/pkg-plist	(working copy)
@@ -7,5 +7,5 @@
 sbin/policy-test
 sbin/postgreyreport
 @dir etc/postfix
-@dir(%%PG_USER%%,%%PG_GROUP%%,750) %%PG_DBDIR%%
-@dir(%%PG_USER%%,%%PG_GROUP%%,750) %%PG_RUNDIR%%
+@dir(%%POSTGREY_USER%%,%%POSTGREY_GROUP%%,750) %%POSTGREY_DBDIR%%
+@dir(%%POSTGREY_USER%%,%%POSTGREY_GROUP%%,750) %%POSTGREY_RUNDIR%%