As discussed in the thread starting with this message:

http://lists.freebsd.org/pipermail/freebsd-ports/2011-November/071511.html

a number of ports are redefining PORT_DBDIR already defined with the
same value in bsd.port.mk

Affected ports are:

% grep -rl '/var/db/ports' .
./sysutils/thefish/Makefile
./lang/php52-extensions/Makefile
./lang/php5-extensions/Makefile
./lang/fpc-units/Makefile
./lang/php4-extensions/Makefile
./devel/mico/Makefile
./net-mgmt/netustad/Makefile
./net-mgmt/nedi/Makefile
./mail/squirrelmail-shared_calendars-plugin/Makefile
./security/pear-Crypt_RSA/Makefile
./Mk/bsd.port.mk    ---- where this should be defined
./UPDATING          ---- innocent bystander
./ports-mgmt/portmanager/files/patch-libMGPM__src__MGPMrUpdate.c ---- ditto

The attached patches fix the observed redundancy and bring those ports
into line with using OPTIONS in the standard ports way.

portlint has been petted only to the extent that any errors have been
suppressed.

After applying these patches, there are no more hits to the following
commands in any port Makefiles:

% grep -rl '${PORT_DBDIR}/${LATEST_LINK}/options' .
% grep -rl '\.include.*OPTIONSFILE' .

PR generated at request of wxs@...  Maintainers have been CC'd

Fix: Index: Makefile
===================================================================
RCS file: /home/ncvs/ports/devel/mico/Makefile,v
retrieving revision 1.104
diff -u -u -r1.104 Makefile
--- Makefile	23 Sep 2011 22:22:09 -0000	1.104
+++ Makefile	22 Nov 2011 14:34:32 -0000
@@ -32,17 +32,7 @@
 		GTK "Build with GTK support" off \
 		DEBUG "Build debug version" off
 
-# need for OPTIONS work
-PORT_DBDIR?=	/var/db/ports
-
-OPTIONSFILE?=	${PORT_DBDIR}/${PORTNAME}/options
-.if exists(${OPTIONSFILE}) && !make(rmconfig)
-.include "${OPTIONSFILE}"
-.endif
-.if exists(${OPTIONSFILE}.local)
-.include "${OPTIONSFILE}.local"
-.endif
-# ================
+.include <bsd.port.options.mk>
 
 NOT_FOR_ARCHS=		sparc64
 
--- mico.diff ends here ---

Index: Makefile
===================================================================
RCS file: /home/ncvs/ports/net-mgmt/netustad/Makefile,v
retrieving revision 1.12
diff -u -u -r1.12 Makefile
--- Makefile	31 May 2010 02:00:33 -0000	1.12
+++ Makefile	22 Nov 2011 14:36:17 -0000
@@ -22,13 +22,9 @@
 GNU_CONFIGURE=	yes
 OPTIONS=	SSL "Use netUstad with SSL support" on
 
-PORT_DBDIR?=	/var/db/ports
 LATEST_LINK=	${PORTNAME}${PKGNAMESUFFIX}
-OPTIONSFILE?=	${PORT_DBDIR}/${LATEST_LINK}/options
 
-.if exists(${OPTIONSFILE})
-.include "${OPTIONSFILE}"
-.endif
+.include <bsd.port.options.mk>
 
 .if !defined(WITHOUT_SSL)
 USE_OPENSSL=	yes
--- netustad.diff ends here ---

Index: Makefile
===================================================================
RCS file: /home/ncvs/ports/lang/php4-extensions/Makefile,v
retrieving revision 1.12
diff -u -u -r1.12 Makefile
--- Makefile	15 Jun 2009 09:21:34 -0000	1.12
+++ Makefile	22 Nov 2011 14:30:11 -0000
@@ -94,13 +94,9 @@
 		ZIP             "ZIP support" off \
 		ZLIB            "ZLIB support" on
 
-PORT_DBDIR?=	/var/db/ports
 LATEST_LINK=	${PORTNAME}${PKGNAMESUFFIX}
-OPTIONSFILE?=	${PORT_DBDIR}/${LATEST_LINK}/options
 
-.if exists(${OPTIONSFILE})
-.include "${OPTIONSFILE}"
-.endif
+.include <bsd.port.options.mk>
 
 ALL_OPTIONS=	BCMATH BZ2 CALENDAR CRACK CTYPE CURL DBA DBASE DBX DIO \
 		DOMXML EXIF FILEINFO FILEPRO FRIBIDI FTP GD GETTEXT \
--- php4-extensions.diff ends here ---

Index: Makefile
===================================================================
RCS file: /home/ncvs/ports/lang/php52-extensions/Makefile,v
retrieving revision 1.2
diff -u -u -r1.2 Makefile
--- Makefile	12 Sep 2010 03:44:43 -0000	1.2
+++ Makefile	22 Nov 2011 14:24:07 -0000
@@ -109,13 +109,9 @@
 		ZIP             "ZIP support" off \
 		ZLIB            "ZLIB support" off
 
-PORT_DBDIR?=	/var/db/ports
 LATEST_LINK=	${PORTNAME}${PKGNAMESUFFIX}
-OPTIONSFILE?=	${PORT_DBDIR}/${LATEST_LINK}/options
 
-.if exists(${OPTIONSFILE})
-.include "${OPTIONSFILE}"
-.endif
+.include <bsd.port.options.mk>
 
 ALL_OPTIONS=	BCMATH BZ2 CALENDAR CTYPE CURL DBA DBASE \
 		DOM EXIF FILEINFO FILTER FRIBIDI FTP GD GETTEXT \
--- php52-extensions.diff ends here ---