diff -ruN ports/Mk/bsd.licenses.db.mk p4/portslicense/ports/Mk/bsd.licenses.db.mk
--- ports/Mk/bsd.licenses.db.mk	1970-01-01 00:00:00.000000000 +0000
+++ p4/portslicense/ports/Mk/bsd.licenses.db.mk	2009-06-11 07:50:40.496320000 +0000
@@ -0,0 +1,96 @@
+#-*- mode: makefile; tab-width: 4; -*-
+# ex:ts=4
+#
+# $FreeBSD$
+#
+# bsd.licenses.db.mk - License database for bsd.licenses.mk
+#
+# Created by: Alejandro Pulver <alepulver@FreeBSD.org>
+#
+# Please view me with 4 column tabs!
+#
+
+# Possible sources for information:
+# - FOSSology (see "Default License Groups")
+#   http://fossology.org/interpret_the_license_group_analysis_report
+#
+# - Wikipedia (article "Comparison of Free Software Licenses")
+#   http://en.wikipedia.org/wiki/Comparison_of_free_software_licences
+#
+# Probably will be automatically incorporated from FOSSology's software.
+
+# XXX Start of editable section
+
+# License definitions
+#
+# _LICENSE_LIST			- List of defined licenses
+# _LICENSE_LIST_GROUPS	- List of defined license groups
+#
+
+_LICENSE_LIST=			ASL BSD BSL CDDL GPLv2 GPLv3 LGPL MIT MPL
+_LICENSE_LIST_GROUPS=	FSF GPL OSI
+
+# Properties of license/group "xxx" (similar to port's variables, but single)
+# _LICENSE_NAME_xxx		- Full name/description of license/group
+# _LICENSE_PERMS_xxx	- Permissions
+# _LICENSE_COMPAT_xxx	- Compatibility
+# _LICENSE_INCOMPAT_xxx	- Incompatibility
+
+# List of licenses
+
+_LICENSE_NAME_ASL=		Apache License
+
+_LICENSE_NAME_BSD=		BSD license
+
+_LICENSE_NAME_BSL=		Boost Software License
+
+_LICENSE_NAME_CDDL=		Common Development and Distribution License
+
+_LICENSE_NAME_GPLv2=	GNU General Public License version 2
+
+_LICENSE_NAME_GPLv3=	GNU General Public License version 3
+
+_LICENSE_NAME_LGPL=		GNU Lesser General Public License
+
+_LICENSE_NAME_MIT=		MIT license / X11 license
+
+_LICENSE_NAME_MPL=		Mozilla Public License
+
+# List of groups
+
+_LICENSE_NAME_FSF=		Free Software Foundation Approved
+_LICENSE_PERMS_FSF=		pkg-redist dist-redist pkg-sell dist-sell auto-accept
+
+_LICENSE_NAME_GPL=		GPL Compatible
+_LICENSE_PERMS_GPL=		pkg-redist dist-redist pkg-sell dist-sell auto-accept
+
+_LICENSE_NAME_OSI=		OSI Approved
+_LICENSE_PERMS_OSI=		pkg-redist dist-redist pkg-sell dist-sell auto-accept
+
+# Grouping
+#
+# - Method 1:
+# _LICENSE_LIST_GROUP_xxx	- List of licenses under the "xxx" group
+
+_LICENSE_LIST_GROUP_FSF=	ASL BSD BSL CDDL GPLv2 GPLv3 LGPL MIT MPL
+
+_LICENSE_LIST_GROUP_GPL=	GPLv2 GPLv3 LGPL MIT
+
+_LICENSE_LIST_GROUP_OSI=	ASL BSD BSL CDDL GPLv2 GPLv3 LGPL MIT MPL
+
+# - Method 2:
+# _LICENSE_GROUPS_xxx		- Groups the license/group belongs to
+
+# empty
+
+# XXX End of editable section
+
+# Method 1 expands to method 2
+.for group in ${_LICENSE_LIST_GROUPS}
+.	for lic in ${_LICENSE_LIST_GROUP_${group}}
+_LICENSE_GROUPS_${lic}?=	#
+.		if ${_LICENSE_GROUPS_${lic}:M${group}} == ""
+_LICENSE_GROUPS_${lic}+=	${group}
+.		endif
+.	endfor
+.endfor
diff -ruN ports/Mk/bsd.licenses.mk p4/portslicense/ports/Mk/bsd.licenses.mk
--- ports/Mk/bsd.licenses.mk	1970-01-01 00:00:00.000000000 +0000
+++ p4/portslicense/ports/Mk/bsd.licenses.mk	2009-05-31 15:50:57.601762000 +0000
@@ -0,0 +1,535 @@
+#-*- mode: makefile; tab-width: 4; -*-
+# ex:ts=4
+#
+# $FreeBSD$
+#
+# bsd.licenses.mk - License auditing framework.
+#
+# Created by: Alejandro Pulver <alepulver@FreeBSD.org>
+#
+# Please view me with 4 column tabs!
+#
+
+# The following cases are not considered:
+#
+# - Redistribution of modified distfiles, because is never been done.
+# - Creating binaries from modified sources, because packages almost always
+#   contain modifications to the source, and can not be autodetected (i.e.
+#   patch-* in ${FILESDIR}, post-* targets, etc), and these licenses tend to
+#   have more restrictions.
+#
+
+# Integration with target sequences
+#
+# _SANITY_SEQ+=		check-license (after check-vulnerable)
+# _EXTRACT_SEQ+=	ask-license (after post-extract-script)
+# _INSTALL_SUSEQ+=	install-license (after install-desktop-entries)
+#
+# The 'check-license' target will determine if the license was rejected or has
+# to be asked later in 'ask-license' (by then LICENSE_FILE should be available
+# for presenting to the user).
+# The 'install-license' target installs both the application's license and a
+# restriction report (to be used by ports scripts and similar tools).
+
+# Variables provided to users
+#
+# LICENSES_ACCEPTED	- Accepted licenses and groups.
+# LICENSES_REJECTED	- Rejected licenses and groups.
+# LICENSE_ASK		- Require explicit user approval for all licenses not
+#					  present in configuration nor LICENSES_ACCEPTED.
+# LICENSES_CONFIG	- If defined, will ask again when already saved
+#
+# The components of LICENSES_{ACCEPTED,REJECTED} can be one of:
+# - A license code (like "GPLv2").
+# - A license group prefixed by '@' (like "@OSI").
+#
+# Note that the framework configuration format is the same (without groups
+# syntax), but stored in ${LICENSE_CFG} or ${LICENSE_CFG_PORT}. The user
+# variables take precedence (anyways the other configuration is also made by
+# the user).
+#
+
+# Variables provided to ports
+#
+# LICENSE			- Code of license (short name).
+# LICENSE_PERMS		- Permissions; use "none" if empty.
+# LICENSE_GROUPS	- Groups the license belongs.
+# LICENSE_COMPAT	- Compatibility with other licenses/groups (default: all).
+# LICENSE_INCOMPAT	- Incompatibility with other licenses/groups (default: none).
+# LICENSE_NAME		- Full license name (for the reports).
+# LICENSE_NOTES		- A note about restrictions (not needed), to replace
+# 					  RESTRICTED and ports/LEGAL.
+# LICENSE_FILE		- Full path to license (or use LICENSE_TEXT).
+# LICENSE_TEXT		- Text to use as a license, useful when referencing to
+#					  another place if it's not in the distfile.
+# LICENSE_DISTFILE	- Name of licensed files (defaults to ${DISTFILES}).
+#
+# The following cases are supported (see _LICENSE_TYPE):
+#
+# Case 1: license defined in the framework (aka "known").
+# Define LICENSE; framework defines license variables, by redefining any of
+# them the port falls in Case 2.
+#
+# Case 2: license is based on a defined one (aka "variant").
+# All license variables must be defined by the port (but LICENSE is set to
+# a known value).
+# XXX This case is being considered, and if it has to inherit properties from
+#     its base license or just let it fall in Case 3 (as now).
+#
+# Case 3: license only known by the port (aka "unknown").
+# All license variables must be defined by the port.
+#
+# Notes:
+# - Permissions use a default-deny policy (that's why groups are there).
+# - Adding a license to a group makes it inherit their properties (PERMS,
+#   GROUPS and COMPAT/INCOMPAT).
+# - Components can be negated by prefixing them with "no-" (like
+#   "no-pkg-sell"). Useful for exceptions.
+# - For multiple licenses components can be grouped, for example:
+#   LICENSE=		GPLv2 BSD
+#   LICENSE_PERMS=	GPLv2:no-pkg-sell,pkg-redist BSD:no-pkg-sell,pkg-redist
+#   LICENSE_NOTES=	GPLv2:"No sell" BSD:"Allows everything"
+#
+# Available components for LICENSE_PERMS:
+# dist-redist	- No free redistribution of distfile (like FTP mirroring; RESTRICTED).
+# dist-sell		- No selling of distfile (like in CD-ROM; NO_CDROM).
+# pkg-redist	- No free redistribution of package (like FTP upload; NO_PACKAGE).
+# pkg-sell		- No selling of package (like in CD-ROM; NO_CDROM).
+# auto-accept	- If license is accepted by default, without presented agreement.
+# none			- Explicit universal restriction (to make sure that is the intention).
+# And the following aliases (can also be negated): pkg, dist, sell and redist.
+#
+
+.if defined(_POSTMKINCLUDED) && !defined(BEFOREPORTMK)
+
+.if defined(LICENSE)
+
+# Organization
+# - Define common license properties.
+# - Define internal variables.
+# - Check for single or multiple port licenses.
+# - Check defined properties and compare with database.
+# - Check user and framework configuration.
+# - Define targets.
+
+# Include known licenses from database
+
+.include "${PORTSDIR}/Mk/bsd.licenses.db.mk"
+
+# Lists of variables and valid components
+#
+# _LICENSE_LIST_PERMS		- Valid permission components
+# _LICENSE_LIST_PORT_VARS	- License variables defined by the port
+# _LICENSE_LIST_GROUP_VARS	- License variables inherited from groups
+# _LICENSE_LIST_SAVE_VARS	- License variables present in the report
+
+_LICENSE_LIST_PERMS=		dist-redist dist-sell pkg-redist pkg-sell auto-accept none
+_LICENSE_LIST_PORT_VARS=	PERMS GROUPS NAME COMPAT INCOMPAT
+_LICENSE_LIST_GROUP_VARS=	PERMS COMPAT INCOMPAT
+_LICENSE_LIST_SAVE_VARS=	_LICENSE _LICENSE_NOTES _LICENSE_DISTFILES \
+							_LICENSE_COMPAT _LICENSE_INCOMPAT ${_LICENSE_LIST_PORT_VARS:S/^/_LICENSE_/}
+
+# Defaults
+
+LICENSE_DISTFILE?=	${DISTFILES}
+# XXX internal variables will be useful for multiple licenses
+_LICENSE=			${LICENSE}
+_LICENSE_NOTES=		${LICENSE_NOTES}
+_LICENSE_DISTFILE=	${LICENSE_DISTFILE}
+
+# Path variables
+#
+# _LICENSE_DIR		- Directory to install licenses
+# _LICENSE_DIR_REL	- Same as above, without ${PREFIX}
+# _LICENSE_CFG_GLOB	- Global license configuration file
+# _LICENSE_CFG_PORT	- Per port license configuration file
+# _LICENSE_REPORT	- License report to be created (under ${LICENSE_DIR})
+
+_LICENSE_DIR?=		${PREFIX}/share/licenses/${UNIQUENAME}
+_LICENSE_DIR_REL?=	share/licenses/${UNIQUENAME}
+_LICENSE_CFG_GLOB?=	${PORT_DBDIR}/license-config
+_LICENSE_CFG_PORT?=	${PORT_DBDIR}/${UNIQUENAME}/license
+_LICENSE_REPORT?=	${_LICENSE_DIR}/report
+
+# Check if single or dual/multiple license
+#
+# _LICENSE_SINGLE	- Defined for a single license
+# _LICENSE_MULTI	- Set to "and"/"or"? (XXX Not implemented)
+
+#.for lic in ${_LICENSE}
+#.	if defined(_LICENSE_DEFINED)
+#_LICENSE_MULTI=		yes
+#.	else
+#_LICENSE_DEFINED?=	${lic}
+#.	endif
+#.endfor
+#.if !defined(_LICENSE_MULTI)
+#_LICENSE_SINGLE=	yes
+#.endif
+#.undef _LICENSE_DEFINED
+
+# Evaluate port license groups and permissions
+#
+# Available values for _LICENSE_TYPE:
+# Case 1: "known" (license info taken from internal database)
+# Case 2: "variant" (LICENSE is known, but info taken from port)
+# Case 3: "unknown" (LICENSE is not known, and info taken from port)
+# # Make sure required variables are defined, and remove conflicting (positive
+# and negative) and duplicated components.
+
+#.if defined(_LICENSE_SINGLE)
+.	for lic in ${_LICENSE}
+.		if ${_LICENSE_LIST:M${lic}} != ""
+.			for var in ${_LICENSE_LIST_PORT_VARS}
+.				if defined(LICENSE_${var})
+_LICENSE_TYPE=	variant
+.				endif
+.			endfor
+_LICENSE_TYPE?=	known
+.			for var in ${_LICENSE_LIST_PORT_VARS}
+# Case 1: license defined in the framework.
+.				if ${_LICENSE_TYPE} == "known"
+_LICENSE_${var}=	${_LICENSE_${var}_${lic}}
+# Case 2: license is based on a defined one.
+# XXX Should here be inheritance of non defined values?
+.				elif ${_LICENSE_TYPE} == "variant" && defined(LICENSE_${var})
+_LICENSE_${var}=	${LICENSE_${var}}
+.				endif
+.			endfor
+# Case 3: license only known by the port.
+.		else
+_LICENSE_TYPE?=	unknown
+.			for var in ${_LICENSE_LIST_PORT_VARS}
+.				if defined(LICENSE_${var})
+_LICENSE_${var}=	${LICENSE_${var}}
+.				endif
+.			endfor
+.		endif
+# XXX here it does not affect _LICENSE_TYPE
+_LICENSE_COMPAT?=	#
+_LICENSE_INCOMPAT?=	#
+# Check everything needed is defined.
+.		for var in ${_LICENSE_LIST_PORT_VARS}
+.			if !defined(_LICENSE_${var})
+.				if ${_LICENSE_TYPE} == "variant"
+_LICENSE_ERROR?=	for a modified license, defining LICENSE_${var} is mandatory (otherwise define LICENSE alone)
+.				elif ${_LICENSE_TYPE} == "unknown"
+_LICENSE_ERROR?=	for a new/unknown license, defining LICENSE_${var} is mandatory (otherwise use a known LICENSE)
+.				endif
+.			endif
+.		endfor
+# Groups are always inherited (and were expanded so no recursion)
+.		for group in ${_LICENSE_LIST_GROUPS}
+.			for var in ${_LICENSE_LIST_GROUP_VARS}
+_LICENSE_${var}+=	${_LICENSE_${var}_${group}}
+.			endfor
+.		endfor
+# Expand LICENSE_PERMS aliases
+# pkg		-> pkg-redist pkg-sell
+# dist		-> dist-redist dist-sell
+# redist	-> pkg-redist dist-redist
+# sell		-> pkg-sell dist-sell
+_LICENSE_PERMS:=	${_LICENSE_PERMS:Nno-*:C/^(pkg|dist)$/\1-redist \1-sell/:C/^(sell|redist)$/dist-\1 pkg-\1/} \
+					${_LICENSE_PERMS:Mno-*:C/^(no-)(pkg|dist)$/\1\2-redist \1\2-sell/:C/^(no-)(sell|redist)$/\1dist-\2 \1pkg-\2/}
+# XXX Cleaner, but outputs an error when (no-)? is not found but referenced later by \1
+#_LICENSE_PERMS:=	${_LICENSE_PERMS:C/^(no-)?(pkg|dist)$/\1\2-redist \1\2-sell/:C/^(no-)?(sell|redist)$/\1dist-\2 \1pkg-\2/}
+# Check LICENSE_PERMS for invalid, ambiguous and duplicate components
+__LICENSE_PERMS:=	#
+.		for comp in ${_LICENSE_PERMS}
+.			if ${_LICENSE_LIST_PERMS:M${comp:C/^no-//}} == ""
+_LICENSE_ERROR?=	invalid LICENSE_PERMS component "${comp}"
+.			elif ${__LICENSE_PERMS:M${comp}} == "" && \
+				 ${_LICENSE_PERMS:Mno-${comp:C/^no-//}} == ""
+__LICENSE_PERMS+=	${comp}
+.			endif
+.		endfor
+_LICENSE_PERMS:=	${__LICENSE_PERMS}
+.		undef __LICENSE_PERMS
+# Check for LICENSE_FILE or at least LICENSE_TEXT (which simulates it)
+# XXX License file is optional for licenses present in database, maybe an option
+#     could be added to avoid installing licenses present in the database
+.		if !defined(LICENSE_FILE)
+.			if !defined(LICENSE_TEXT)
+.				if ${_LICENSE_TYPE} == "known"
+LICENSE_TEXT=		License ${lic} is in internal database, please check ...
+.				else
+_LICENSE_ERROR?=	LICENSE_FILE or LICENSE_TEXT must be defined for unknown licenses
+.				endif
+.			else
+_LICENSE_FILE=		${WRKDIR}/License-freebsd-port
+.			endif
+.		else
+_LICENSE_FILE=		${LICENSE_FILE}
+.		endif
+.	endfor
+#.else
+# XXX dual/multiple licenses
+#.endif
+
+# Check if the user agrees with the license
+#
+# _LICENSE_CFG			- Path to cfg file (either global or per port)
+# _LICENSE_CFG_TYPE		- "global" or "port", according to the previous
+#
+# LICENSES_ACCEPTED		- List of accepted licenses (user version)
+# LICENSES_REJECTED		- List of rejected licenses (user version)
+# _LICENSES_ACCEPTED	- List of accepted licenses (configuration file)
+# _LICENSES_REJECTED	- List of rejected licenses (configuration file)
+
+# If _LICENSE_TYPE is "known", configuration is global, otherwise per port.
+
+.if ${_LICENSE_TYPE} == "known"
+_LICENSE_CFG=		${_LICENSE_CFG_GLOB}
+_LICENSE_CFG_TYPE=	global
+.else
+_LICENSE_CFG=	${_LICENSE_CFG_PORT}
+_LICENSE_CFG_TYPE=	port
+.endif
+
+.if exists(${_LICENSE_CFG})
+.	include "${_LICENSE_CFG}"
+.endif
+
+# Make sure these are defined
+LICENSES_ACCEPTED?=		#
+LICENSES_REJECTED?=		#
+_LICENSES_ACCEPTED?=	#
+_LICENSES_REJECTED?=	#
+
+# Evaluate status (accepted, rejected or ask)
+#
+# _LICENSE_STATUS			- Status: "accepted", "rejected" or "ask"
+# _LICENSE_STATUS_FROM		- Status origin: "user", "config" or "default"
+# _LICENSE_STATUS_REASON	- Text reason of license status (XXX Required?)
+
+_LICENSE_TYPE_PAIRS_known=		LICENSES,user _LICENSES,config
+_LICENSE_TYPE_PAIRS_variant=	_LICENSES,config
+_LICENSE_TYPE_PAIRS_unknown=	_LICENSES,config
+
+#.if defined(_LICENSE_SINGLE)
+# User and saved configuration
+.	for lic in ${_LICENSE}
+.		for pair in ${_LICENSE_TYPE_PAIRS_${_LICENSE_TYPE}}
+_LC_VAR:=	${pair:C/,.*//}
+_LC_TYPE:=	${pair:C/.*,//}
+.			if ${${_LC_VAR}_REJECTED:M${lic}} != "" && !defined(_LICENSE_STATUS)
+_LICENSE_STATUS=		rejected
+_LICENSE_STATUS_FROM:=	${_LC_TYPE}
+.			elif ${${_LC_VAR}_ACCEPTED:M${lic}} != "" && !defined(_LICENSE_STATUS)
+_LICENSE_STATUS=		accepted
+_LICENSE_STATUS_FROM:=	${_LC_TYPE}
+.			endif
+.		endfor
+
+# Automatic configuration
+.		if !defined(_LICENSE_STATUS)
+# Check groups (only available for user configuration)
+.			for group in ${_LICENSE_LIST_GROUPS}
+.				if ${LICENSES_REJECTED:M\@${group}} != ""
+_LICENSE_STATUS?=		rejected
+_LICENSE_STATUS_FROM?=	user
+.				endif
+.				if ${LICENSES_ACCEPTED:M\@${group}} != ""
+_LICENSE_STATUS?=		accepted
+_LICENSE_STATUS_FROM?=	user
+.				endif
+.			endfor
+# Auto-accept if LICENSE_PERMS has auto-accept, and !LICENSES_ASK
+.			if ${_LICENSE_PERMS:Mauto-accept} != ""
+.				if !defined(LICENSES_ASK)
+_LICENSE_STATUS?=		accepted
+_LICENSE_STATUS_FROM?=	default
+.				else
+_LICENSE_STATUS?=		ask
+_LICENSE_STATUS_FROM?=	user
+.				endif
+.			endif
+# If defined BATCH and need to ask, it fails
+.			if defined(BATCH)
+_LICENSE_STATUS?=		rejected
+_LICENSE_STATUS_FROM?=	user
+.			endif
+# Otherwise ask to the user
+_LICENSE_STATUS?=		ask
+_LICENSE_STATUS_FROM?=	default
+.		endif
+.	endfor
+
+#.else
+# XXX dual/multiple licenses
+#.endif
+
+# Check variables are correctly defined and print status up to here
+
+check-license:
+.if defined(_LICENSE_ERROR)
+		@${ECHO_MSG} "===>  License not correctly defined: ${_LICENSE_ERROR}"
+		@exit 1
+.endif
+#.if defined(_LICENSE_SINGLE)
+.	if ${_LICENSE_STATUS} == "rejected"
+		@${ECHO_MSG} "===>  License ${_LICENSE} rejected by the user (by ${_LICENSE_STATUS_FROM})"
+		@exit 1
+.	elif ${_LICENSE_STATUS} == "accepted"
+		@${ECHO_MSG} "===>  License ${_LICENSE} accepted by the user (by ${_LICENSE_STATUS_FROM})"
+.	elif ${_LICENSE_STATUS} == "ask"
+		@${ECHO_MSG} "===>  License ${_LICENSE} needs agreement, will ask later (by ${_LICENSE_STATUS_FROM})"
+.	endif
+#.else
+# XXX dual/multiple licenses
+#.endif
+
+.if defined(LICENSES_CONFIG)
+_LICENSES_CONFIG=	yes
+.else
+_LICENSES_CONFIG=	no
+.endif
+
+# For config when user accepts
+_LICENSES_ACCEPTED_YES=	${_LICENSES_ACCEPTED} ${_LICENSE}
+.for lic in ${_LICENSE}
+_LICENSES_REJECTED_YES=	${_LICENSES_REJECTED:N${lic}}
+.endfor
+# For config when user rejects
+.for lic in ${_LICENSE}
+_LICENSES_ACCEPTED_NO=	${_LICENSES_ACCEPTED:N${lic}}
+.endfor
+_LICENSES_REJECTED_NO=	${_LICENSES_REJECTED} ${_LICENSE}
+
+# Display, ask and save preference if requested
+
+ask-license:
+.if !defined(LICENSE_FILE) && defined(LICENSE_TEXT)
+# XXX escape shell chars?
+		@${ECHO_CMD} ${LICENSE_TEXT} > ${_LICENSE_FILE}
+.endif
+	@if [ ! -f ${_LICENSE_FILE} ]; then \
+		${ECHO_MSG} "===> License not found in \"${_LICENSE_FILE}\", aborting."; \
+		exit 1; \
+	fi
+	@if [ ${_LICENSE_STATUS} = "accepted" ]; then \
+		status=done; \
+	fi; \
+	if [ ${_LICENSE_STATUS} = "accepted" -a ${_LICENSE_TYPE} != "known" ]; then \
+		if [ ${_LICENSE_${_LICENSE}_CHK} != `${SHA256} -q ${_LICENSE_FILE}` ]; then \
+			${ECHO_MSG} "===> License has changed, agreement will be presented"; \
+			status=ask; \
+		fi; \
+	fi; \
+	if [ ${_LICENSE_STATUS} != "ask" -a ${_LICENSES_CONFIG} = "yes" ]; then \
+		if [ ${_LICENSE_STATUS_FROM} = "user" ]; then \
+			${ECHO_MSG} "===> Configuration failed because manual settings are present"; \
+			exit 1; \
+		else \
+			status=ask; \
+		fi; \
+	fi; \
+	until [ "$$status" = done ]; do \
+		${PRINTF} "\nPress 'y'/'n' (yes/no, upper-case saves choice) or 'v' to view: "; \
+		read ans; \
+		${PRINTF} "\n"; \
+		case $$ans in \
+		y)	${ECHO_MSG} "===> License accepted by user"; \
+				status=done;; \
+		n)	${ECHO_MSG} "===> License rejected by user"; \
+				exit 1;; \
+		Y)	if [ ${UID} != 0 ]; then \
+				${ECHO_MSG} "===> You don't have permissions to save the choice"; \
+			else \
+				${MKDIR} ${_LICENSE_CFG:H}; \
+				(${ECHO_CMD} _LICENSES_ACCEPTED=${_LICENSES_ACCEPTED_YES}; \
+				 ${ECHO_CMD} _LICENSES_REJECTED=${_LICENSES_REJECTED_YES}; \
+				if [ ${_LICENSE_TYPE} != "known" ]; then \
+					${ECHO_CMD} _LICENSE_${_LICENSE}_CHK=`${SHA256} -q ${_LICENSE_FILE}`; \
+				fi) > ${_LICENSE_CFG}; \
+				${ECHO_MSG} "===> License accepted by user and saved"; \
+				status=done; \
+			fi;; \
+		N)	if [ ${UID} != 0 ]; then \
+				${ECHO_MSG} "===> You don't have permissions to save the choice"; \
+			else \
+				${MKDIR} ${_LICENSE_CFG:H}; \
+				(${ECHO_CMD} _LICENSES_ACCEPTED=${_LICENSES_ACCEPTED_NO}; \
+				 ${ECHO_CMD} _LICENSES_REJECTED=${_LICENSES_REJECTED_NO}; \
+				if [ ${_LICENSE_TYPE} != "known" ]; then \
+					${ECHO_CMD} _LICENSE_${_LICENSE}_CHK=`${SHA256} -q ${_LICENSE_FILE}`; \
+				fi) > ${_LICENSE_CFG}; \
+				${ECHO_MSG} "===> License rejected by user and saved"; \
+				exit 1; \
+			fi;; \
+		[Vv])	more ${_LICENSE_FILE};; \
+		esac; \
+	done
+
+# License compatibility check
+
+# XXX is it useful? Maybe BUILD/LIB depends too?
+#     also empty vaules of COMPAT do not mean "incompatible with all"
+
+.if !empty(_LICENSE_COMPAT) || !empty(_LICENSE_INCOMPAT)
+.	for port in ${RUN_DEPENDS}
+_LICENSE_RESULT!=	cd ${port} && ${MAKE} -V LICENSE
+.		for lic in ${_LICENSE_RESULT}
+.			if (!empty(_LICENSE_COMPAT) && ${LICENSE_COMPAT:M${lic}} == "") || \
+			   (!empty(_LICENSE_INCOMPAT) && ${LICENSE_INCOMPAT:M${lic}} != "")
+IGNORE=				depends on ${port:T} that uses license "${lic}" which is incompatible with "${_LICENSE}" used by this port
+.			endif
+.		endfor
+.	endfor
+.endif
+
+# Package list entries, and installation
+
+PLIST_FILES+=	${_LICENSE_DIR_REL}/${_LICENSE_REPORT:T}
+PLIST_DIRS+=	${_LICENSE_DIR_REL}
+
+.if defined(_LICENSE_FILE)
+PLIST_FILES+=	${_LICENSE_DIR_REL}/${_LICENSE_FILE:T}
+.endif
+
+install-license:
+	@${MKDIR} ${_LICENSE_DIR}
+.if defined(_LICENSE_FILE)
+	@test -f ${_LICENSE_FILE} && ${INSTALL_DATA} ${_LICENSE_FILE} ${_LICENSE_DIR}
+.endif
+	@${TRUE} > ${_LICENSE_REPORT}
+.	for var in ${_LICENSE_LIST_SAVE_VARS}
+.		if !empty(${var})
+		@${ECHO_CMD} ${var}=${${var}:C/^[[:blank:]]*//} >> ${_LICENSE_REPORT}
+.		endif
+.	endfor
+
+.if make(clean-user-license-config)
+.	for lic in ${LICENSES_APPROVED:N\@*} ${LICENSES_REJECTED:N\@*}
+.		if ${_LICENSE_LIST:M${lic}} == ""
+_LICENSES_INV+=		${lic}
+.		endif
+.	endfor
+.	for group in ${LICENSES_APPROVED:M\@*} ${LICENSES_REJECTED:M\@*}
+.		if ${_LICENSE_LIST_GROUPS:M${group}} == ""
+_LICENSES_INV_GRP+=	${group}
+.		endif
+.	endfor
+.endif
+clean-user-license-config:
+.if !empty(_LICENSES_INV)
+	@${ECHO_CMD} "Invalid user approved/rejected licenses: ${_LICENSES_INV}"
+.endif
+.if !empty(_LICENSES_INV_GRP)
+	@${ECHO_CMD} "Invalid user approved/rejected license groups: ${_LICENSES_INV_GRP}"
+.endif
+
+.else	# !LICENSE
+
+check-license:
+	@${ECHO_MSG} "===>  License check disabled, port has not defined LICENSE"
+
+ask-license:
+	@${DO_NADA}
+
+install-license:
+	@${DO_NADA}
+
+.endif	# LICENSE
+
+.endif
diff -ruN ports/Mk/bsd.port.mk p4/portslicense/ports/Mk/bsd.port.mk
--- ports/Mk/bsd.port.mk	2009-06-11 09:09:29.343323000 +0000
+++ p4/portslicense/ports/Mk/bsd.port.mk	2009-06-13 11:06:51.478081000 +0000
@@ -2412,6 +2412,9 @@
 ALL_TARGET?=		all
 INSTALL_TARGET?=	install
 
+# Integrate with the license auditing framework
+.include "${PORTSDIR}/Mk/bsd.licenses.mk"
+
 # Popular master sites
 .include "${PORTSDIR}/Mk/bsd.sites.mk"
 
@@ -4172,15 +4175,15 @@
 .endif
 _SANITY_SEQ=	${_CHROOT_SEQ} pre-everything check-makefile check-categories \
 				check-makevars check-desktop-entries check-depends \
-				check-deprecated check-vulnerable buildanyway-message \
-				options-message
+				check-deprecated check-vulnerable check-license \
+				buildanyway-message options-message
 _FETCH_DEP=		check-sanity
 _FETCH_SEQ=		fetch-depends pre-fetch pre-fetch-script \
 				do-fetch post-fetch post-fetch-script
 _EXTRACT_DEP=	fetch
 _EXTRACT_SEQ=	extract-message checksum extract-depends pre-extract \
 				pre-extract-script do-extract \
-				post-extract post-extract-script
+				post-extract post-extract-script ask-license
 _PATCH_DEP=		extract
 _PATCH_SEQ=		patch-message patch-depends patch-dos2unix pre-patch \
 				pre-patch-script do-patch post-patch post-patch-script
@@ -4197,7 +4200,7 @@
 				pre-install-script generate-plist check-already-installed
 _INSTALL_SUSEQ= check-umask install-mtree pre-su-install \
 				pre-su-install-script do-install install-desktop-entries \
-				post-install post-install-script add-plist-info \
+				install-license post-install post-install-script add-plist-info \
 				add-plist-docs add-plist-examples add-plist-data \
 				add-plist-post install-rc-script compress-man \
 				install-ldconfig-file fake-pkg security-check
@@ -5868,6 +5871,9 @@
 		${CAT} /tmp/${PKGNAME}-required-by >> ${PKG_DBDIR}/${PKGNAME}/+REQUIRED_BY; \
 		${RM} -f /tmp/${PKGNAME}-required-by; \
 	fi
+.if defined(REGISTER_LICENSE)
+# XXX concat prepared file to +CONTENTS (or directly use .if exists())
+.endif
 .else
 	@${DO_NADA}
 .endif
diff -ruN ports/Mk/test-license-1/Makefile p4/portslicense/ports/Mk/test-license-1/Makefile
--- ports/Mk/test-license-1/Makefile	1970-01-01 00:00:00.000000000 +0000
+++ p4/portslicense/ports/Mk/test-license-1/Makefile	2009-05-31 15:50:57.759762000 +0000
@@ -0,0 +1,32 @@
+# New ports collection makefile for:	test-license
+# Date created:				2008-07-06
+# Whom:					alepulver
+#
+# $FreeBSD$
+#
+
+PORTNAME=	test-license
+PORTVERSION=	1.0
+CATEGORIES=	devel
+MASTER_SITES=	#
+DISTFILES=	#
+
+MAINTAINER=	alepulver@FreeBSD.org
+COMMENT=	Port to test the Ports License Framework
+
+NO_BUILD=	yes
+NO_WRKSUBDIR=	yes
+
+LICENSE=	MyLic
+LICENSE_TEXT=	This license is at www.example.com
+LICENSE_PERMS=	redist
+LICENSE_NAME=	My Example License
+LICENSE_GROUPS=	#
+
+do-extract:
+	@${MKDIR} ${WRKDIR}
+
+do-install:
+
+.include <bsd.port.pre.mk>
+.include <bsd.port.post.mk>
diff -ruN ports/Mk/test-license-1/pkg-descr p4/portslicense/ports/Mk/test-license-1/pkg-descr
--- ports/Mk/test-license-1/pkg-descr	1970-01-01 00:00:00.000000000 +0000
+++ p4/portslicense/ports/Mk/test-license-1/pkg-descr	2009-05-31 15:50:57.770763000 +0000
@@ -0,0 +1,3 @@
+[description of the port]
+
+WWW:	http://port.home.page/
diff -ruN ports/Mk/test-license-1/pkg-plist p4/portslicense/ports/Mk/test-license-1/pkg-plist
--- ports/Mk/test-license-1/pkg-plist	1970-01-01 00:00:00.000000000 +0000
+++ p4/portslicense/ports/Mk/test-license-1/pkg-plist	2009-05-31 15:50:57.773760000 +0000
@@ -0,0 +1 @@
+@comment $FreeBSD$