Index: Mk/bsd.port.mk
===================================================================
--- Mk/bsd.port.mk	(revision 372818)
+++ Mk/bsd.port.mk	(working copy)
@@ -4848,6 +4848,11 @@
 		${PKG_QUERY} "\"%n\": {origin: %o, version: \"%v\"}" " " ${_LIB_RUN_DEPENDS:C,[^:]*:([^:]*):?.*,\1,:C,${PORTSDIR}/,,} 2>/dev/null || : ; \
 	fi
 
+ACTUAL-PACKAGE-DEPENDS-NAMES?= \
+	if [ "${_LIB_RUN_DEPENDS}" != "  " ]; then \
+		${PKG_QUERY} "%n-%v" " " ${_LIB_RUN_DEPENDS:C,[^:]*:([^:]*):?.*,\1,:C,${PORTSDIR}/,,} 2>/dev/null || : ; \
+	fi
+
 create-manifest:
 	@${MKDIR} ${METADIR}; \
 	(\
@@ -4919,6 +4924,9 @@
 actual-package-depends:
 	@${ACTUAL-PACKAGE-DEPENDS}
 
+actual-package-depends-names:
+	@${ACTUAL-PACKAGE-DEPENDS-NAMES}
+
 # Build packages for port and dependencies
 
 package-recursive: package
@@ -5280,7 +5288,7 @@
 .if !target(stage-qa)
 stage-qa:
 	@${ECHO_MSG} "====> Running Q/A tests (stage-qa)"
-	@${SETENV} ${QA_ENV} ${SH} ${SCRIPTSDIR}/qa.sh
+	@${SETENV} ${QA_ENV} ${SH} ${SCRIPTSDIR}/qa.sh "${PKGBASE}-${PKGVERSION}" "`${ACTUAL-PACKAGE-DEPENDS-NAMES}`"
 .endif
 
 # Fake installation of package so that user can pkg delete it later.
Index: Mk/Scripts/qa.sh
===================================================================
--- Mk/Scripts/qa.sh	(revision 372818)
+++ Mk/Scripts/qa.sh	(working copy)
@@ -7,6 +7,17 @@
 	exit 1
 fi
 
+usage () {
+	echo "usage: $0 pkg-name pkg-deps"
+	exit 1
+}
+
+[ -n "$1" ] || usage
+[ -n "$2" ] || usage
+
+PKG_NAME=$1
+PKG_DEPS=$2
+
 LF=$(printf '\nX')
 LF=${LF%X}
 
@@ -18,6 +29,19 @@
 	echo "Error: $@" >&2
 }
 
+listcontains() {
+	local str lst elt
+	str=$1
+	lst=$2
+
+	for elt in ${lst} ; do
+		if [ ${elt} = ${str} ] ; then
+			return 0
+		fi
+	done
+	return 1
+}
+
 shebangonefile() {
 	local f interp rc
 
@@ -206,8 +230,78 @@
 	fi
 }
 
-checks="shebang symlinks paths stripped desktopfileutils sharedmimeinfo suidfiles libtool"
+proxydeps_suggest_uses() {
+	local pkg=$1
+	if expr ${pkg} : '^gettext-[0-9]' > /dev/null ; then
+		warn "you need USES+=gettext"
+	fi
+	if expr ${pkg} : '^glib-2' > /dev/null ; then
+		warn "you need USE_GNOME+=glib20"
+	fi
+	if expr ${pkg} : '^cairo-[0-9]' > /dev/null ; then
+		warn "you need USE_GNOME+=cairo"
+	fi
+	# Xorg-libraries: this should be by XORG_MODULES @ bsd.xorg.mk
+	if echo ${pkg} | grep -E '^lib(X11|Xau|Xdmcp|Xext|SM|ICE|Xfixes|Xft|Xdamage|Xcomposite|Xmu|Xmuu|Xpm|Xt|Xi|Xrandr|Xrender|Xres)-' > /dev/null ; then
+		warn "you need USE_XORG+=$(echo ${pkg} | sed -E 's/^lib(.+)\-.*/\1/' |  tr '[:upper:]' '[:lower:]')"
+	fi
+	# Qt4
+	if echo ${pkg} | grep -E '^qt4-([a-z]+)-[0-9]' > /dev/null ; then
+		warn "you need USE_QT4+=$(echo ${pkg} | sed -E 's/^qt4-([a-z]+)-[0-9].*/\1/')"
+	fi
+	# Qt5
+	if echo ${pkg} | grep -E '^qt5-([a-z]+)-[0-9]' > /dev/null ; then
+		warn "you need USE_QT5+=$(echo ${pkg} | sed -E 's/^qt5-([a-z]+)-[0-9].*/\1/')"
+	fi
+}
 
+proxydeps_check() {
+	local pkg=$1
+	local filelist=$2
+	local deplist=$3
+
+	local file dep_file dep_file_pkg already pkg_dep_files
+
+	# check for every dynamic executable
+	for file in ${filelist}; do
+		pkg_dep_files=$(ldd -a "${file}" | \
+				awk 'BEGIN {section=0}; /^\// {section++} /^[^\/]/ {if(section<=1) print}' | \
+				sed -e 's/.*=> //' | sed -e 's/ .*//')
+		# check every dependency file
+		for dep_file in $pkg_dep_files; do
+			if listcontains ${dep_file} "${already}" ; then
+				continue
+			fi
+			if ! (expr "$dep_file" : '^/lib/' \| "$dep_file" : '^/usr/lib/' > /dev/null) ; then
+				if $(pkg which ${dep_file} > /dev/null 2>&1) ; then
+					dep_file_pkg=$(pkg which ${dep_file} | sed -e 's/.* installed by package //g')
+					if ! listcontains ${dep_file_pkg} "${deplist} ${pkg}" ; then
+						warn "dependency file ${dep_file} belongs to the package ${dep_file_pkg} which isn't declared as a dependency"
+						proxydeps_suggest_uses ${dep_file_pkg}
+					fi
+				else
+					warn "dependency file ${dep_file} doesn't belong to any package"
+				fi
+			fi
+			already="${already} ${dep_file}"
+		done
+	done
+}
+
+
+proxydeps() {
+	# finds all dynamic executables which have dependencies that aren't within the
+	# declared set of dependencies in this port
+	local filelist
+	filelist=`find ${STAGEDIR} -type f \
+		\( -perm -u+x -or -perm -g+x -or -perm -o+x \) \
+		-and -exec /bin/sh -c "ldd {} > /dev/null 2>&1" \; \
+		-and -exec echo {} \;`
+	proxydeps_check ${PKG_NAME} "${filelist}" "${PKG_DEPS}"
+}
+
+checks="shebang symlinks paths stripped desktopfileutils sharedmimeinfo suidfiles libtool proxydeps"
+
 ret=0
 cd ${STAGEDIR}
 for check in ${checks}; do