Index: head/databases/postgresql95-plperl/Makefile
===================================================================
--- head/databases/postgresql95-plperl/Makefile	(revision 505360)
+++ head/databases/postgresql95-plperl/Makefile	(revision 505361)
@@ -1,26 +1,27 @@
 # Created by: Palle Girgensohn <girgen@partitur.se>
 # $FreeBSD$
 
 PORTNAME=	postgresql
-PORTREVISION=	0
+# Keep the ?=, this port is used as master by the other plperl.
+PORTREVISION?=	0
 CATEGORIES=	databases perl5
 PKGNAMESUFFIX?=	${WANT_PGSQL_VER:S/.//}${COMPONENT}
 
 MAINTAINER=	pgsql@FreeBSD.org
 COMMENT=	Write SQL functions for PostgreSQL using Perl5
 
 RUN_DEPENDS=	postgres:databases/postgresql${WANT_PGSQL_VER:S/.//}-server
 
 MASTERDIR=	${.CURDIR}/../../databases/postgresql${WANT_PGSQL_VER:S/.//}-server
 
 WANT_PGSQL_VER?=9.5
 
 USES+=		perl5 readline
 CONFIGURE_ARGS=	--with-perl
 
 BUILD_DIRS=	src/backend src/pl/plperl
 INSTALL_DIRS=	src/pl/plperl
 SLAVE_ONLY=	yes
 COMPONENT=	-plperl
 
 .include "${MASTERDIR}/Makefile"
Index: head/databases/postgresql95-plpython/Makefile
===================================================================
--- head/databases/postgresql95-plpython/Makefile	(revision 505360)
+++ head/databases/postgresql95-plpython/Makefile	(revision 505361)
@@ -1,26 +1,27 @@
 # $FreeBSD$
 
 PORTNAME=	postgresql
 CATEGORIES=	databases python
-PORTREVISION=	0
+# Keep the ?=, it is used as master by the other plpython ports.
+PORTREVISION?=	0
 PKGNAMESUFFIX?=	${WANT_PGSQL_VER:S/.//}${COMPONENT}
 
 MAINTAINER=	pgsql@FreeBSD.org
 COMMENT=	Module for using Python to write SQL functions
 
 USES+=		pgsql:${WANT_PGSQL_VER} ${WANT_PYTHON_USE}
 WANT_PGSQL=	server
 
 MASTERDIR=	${.CURDIR}/../postgresql${WANT_PGSQL_VER:S/.//}-server
 
 WANT_PGSQL_VER?=	9.5
 WANT_PYTHON_USE?=	python
 
 CONFIGURE_ARGS=	--with-python
 COMPONENT=	-plpython
 
 BUILD_DIRS=	src/backend src/pl/plpython
 INSTALL_DIRS=	src/pl/plpython
 SLAVE_ONLY=	yes
 
 .include "${MASTERDIR}/Makefile"
Index: head/databases/postgresql96-pltcl/Makefile
===================================================================
--- head/databases/postgresql96-pltcl/Makefile	(revision 505360)
+++ head/databases/postgresql96-pltcl/Makefile	(revision 505361)
@@ -1,31 +1,32 @@
 # Created by: Palle Girgensohn <girgen@partitur.se>
 # $FreeBSD$
 
 PORTNAME=	postgresql
-PORTREVISION=	0
+# Keep the ?=, it is used by the other pltcl ports.
+PORTREVISION?=	0
 CATEGORIES=	databases tcl
 PKGNAMESUFFIX?=	${WANT_PGSQL_VER:S/.//}${COMPONENT}
 
 MAINTAINER=	pgsql@FreeBSD.org
 COMMENT=	Module for using Tcl to write SQL functions
 
 MASTERDIR=	${.CURDIR}/../../databases/postgresql${WANT_PGSQL_VER:S/.//}-server
 
 WANT_PGSQL_VER?=9.6
 
 USES+=		tcl pgsql:${WANT_PGSQL_VER}
 WANT_PGSQL=	server
 
 CONFIGURE_ARGS=	--with-tcl --without-tk \
 		--with-tclconfig="${TCL_LIBDIR}" \
 		--with-includes="${TCL_INCLUDEDIR}"
 
 CONFIGURE_ENV+=	TCLSH="${TCLSH}"
 MAKE_ENV+=	TCL_INCDIR="${TCL_INCLUDEDIR}"
 
 BUILD_DIRS=	src/backend src/pl/tcl
 INSTALL_DIRS=	src/pl/tcl
 SLAVE_ONLY=	yes
 COMPONENT=	-pltcl
 
 .include "${MASTERDIR}/Makefile"