#!/bin/sh
# MAINTAINER: portmgr@FreeBSD.org
# $FreeBSD$

if [ -z "${STAGEDIR}" -o -z "${PREFIX}" -o -z "${LOCALBASE}" ]; then
	echo "STAGEDIR, PREFIX, LOCALBASE required in environment." >&2
	exit 1
fi

[ -n "${DEBUG_MK_SCRIPTS}" -o -n "${DEBUG_MK_SCRIPTS_QA}" ] && set -x

LF=$(printf '\nX')
LF=${LF%X}

warn() {
	echo "Warning: $@" >&2
}

err() {
	echo "Error: $@" >&2
}

shebangonefile() {
	local f interp rc

	f="$@"
	rc=0

	# blacklist of files which are not intended to be runnable
	case "${f##*/}" in
	*.pm|*.pod|*.txt)
		return 0
		;;
	esac

	interp=$(sed -n -e '1s/^#![[:space:]]*\([^[:space:]]*\).*/\1/p;2q' "${f}")
	case "${interp}" in
	"") ;;
	${LINUXBASE}/*) ;;
	${LOCALBASE}/*) ;;
	${PREFIX}/*) ;;
	/bin/csh) ;;
	/bin/sh) ;;
	/bin/tcsh) ;;
	/usr/bin/awk) ;;
	/usr/bin/env) ;;
	/usr/bin/nawk) ;;
	/usr/bin/sed) ;;
	/usr/sbin/dtrace) ;;
	*)
		err "'${interp}' is an invalid shebang you need USES=shebangfix for '${f#${STAGEDIR}${PREFIX}/}'"
		rc=1
		;;
	esac

	return ${rc}
}

shebang() {
	local f l link rc

	rc=0
	
	while read f; do
		# No results presents a blank line from heredoc.
		[ -z "${f}" ] && continue
		shebangonefile "${f}" || rc=1
	# Use heredoc to avoid losing rc from find|while subshell
	done <<-EOF
	$(find ${STAGEDIR}${PREFIX}/bin ${STAGEDIR}${PREFIX}/sbin \
	    ${STAGEDIR}${PREFIX}/libexec ${STAGEDIR}${PREFIX}/www \
	    -type f -perm +111 2>/dev/null)
	EOF

	# Split stat(1) result into 2 lines and read each line separately to
	# retain spaces in filenames.
	while read l; do
		# No results presents a blank line
		[ -z "${l}" ] && continue
		read link

		case "${link}" in
		/*) f="${STAGEDIR}${link}" ;;
		*) f="${l%/*}/${link}" ;;
		esac
		if [ -f "${f}" ]; then
			shebangonefile "${f}" || rc=1
		fi
	# Use heredoc to avoid losing rc from find|while subshell
	done <<-EOF
	$(find ${STAGEDIR}${PREFIX}/bin ${STAGEDIR}${PREFIX}/sbin \
	    ${STAGEDIR}${PREFIX}/libexec ${STAGEDIR}${PREFIX}/www \
	    -type l -exec stat -f "%N${LF}%Y" {} + 2>/dev/null)
	EOF

	return ${rc}
}

baselibs() {
	local rc
	local found_openssl
	[ "${PKGBASE}" = "pkg" -o "${PKGBASE}" = "pkg-devel" ] && return
	while read f; do
		case ${f} in
		*NEEDED*\[libarchive.so.[56]])
			err "Bad linking on ${f##* } please add USES=libarchive"
			rc=1
			;;
		*NEEDED*\[libedit.so.7])
			err "Bad linking on ${f##* } please add USES=libedit"
			rc=1
			;;
		*NEEDED*\[libcrypto.so.*]|*NEEDED*\[libssl.so.*])
			found_openssl=1
			;;
		esac
	done <<-EOF
	$(find ${STAGEDIR}${PREFIX}/bin ${STAGEDIR}${PREFIX}/sbin \
		${STAGEDIR}${PREFIX}/lib ${STAGEDIR}${PREFIX}/libexec \
		-type f -exec readelf -d {} + 2>/dev/null)
	EOF
	if [ -z "${USESSSL}" -a -n "${found_openssl}" ]; then
		warn "you need USES=ssl"
	elif [ -n "${USESSSL}" -a -z "${found_openssl}" ]; then
		warn "you may not need USES=ssl"
	fi
	return ${rc}
}

symlinks() {
	local rc

	rc=0

	# Split stat(1) result into 2 lines and read each line separately to
	# retain spaces in filenames.
	while read l; do
		# No results presents a blank line from heredoc.
		[ -z "${l}" ] && continue
		read link
		case "${link}" in
			${STAGEDIR}*)
				err "Bad symlink '${l#${STAGEDIR}${PREFIX}/}' pointing inside the stage directory"
				rc=1
				;;
			/*)
				# Only warn for symlinks within the package.
				if [ -e "${STAGEDIR}${link}" ]; then
					warn "Bad symlink '${l#${STAGEDIR}}' pointing to an absolute pathname '${link}'"
				fi
				# Also warn if the symlink exists nowhere.
				if [ ! -e "${STAGEDIR}${link}" -a ! -e "${link}" ]; then
					warn "Symlink '${l#${STAGEDIR}}' pointing to '${link}' which does not exist in the stage directory or in localbase"
				fi
				;;
		esac
	# Use heredoc to avoid losing rc from find|while subshell.
	done <<-EOF
	$(find ${STAGEDIR} -type l -exec stat -f "%N${LF}%Y" {} +)
	EOF

	return ${rc}
}

paths() {
	local rc

	rc=0

	while read f; do
		# No results presents a blank line from heredoc.
		[ -z "${f}" ] && continue
		# Ignore false-positive/harmless files
		case "${f}" in
			*/lib/ruby/gems/*) continue ;;
			*/share/texmf-var/web2c/*/*.fmt) continue ;;
			*/share/texmf-var/web2c/*/*.log) continue ;;
		esac
		err "'${f#${STAGEDIR}${PREFIX}/}' is referring to ${STAGEDIR}"
		rc=1
	# Use heredoc to avoid losing rc from find|while subshell
	done <<-EOF
	$(find ${TMPPLIST} ${STAGEDIR} -type f -exec grep -l "${STAGEDIR}" {} +)
	EOF

	return ${rc}
}

# For now do not raise an error, just warnings
stripped() {
	[ -x /usr/bin/file ] || return # this is fatal
	[ -n "${STRIP}" ] || return 0
	# Split file and result into 2 lines and read separately to ensure
	# files with spaces are kept intact.
	# Using readelf -h ... /ELF Header:/ will match on all ELF files.
	find ${STAGEDIR} -type f ! -name '*.a' ! -name '*.o' \
	    -exec readelf -S {} + 2>/dev/null | awk '\
	    /File:/ {sub(/File: /, "", $0); file=$0} \
	    /SYMTAB/ {print file}' |
	    while read f; do
		warn "'${f#${STAGEDIR}${PREFIX}/}' is not stripped consider trying INSTALL_TARGET=install-strip or using \${STRIP_CMD}"
	done
}

desktopfileutils() {
	if [ -z "${USESDESKTOPFILEUTILS}" ]; then
		grep -q MimeType= ${STAGEDIR}${PREFIX}/share/applications/*.desktop 2>/dev/null &&
		warn "you need USES=desktop-file-utils"
	else
		grep -q MimeType= ${STAGEDIR}${PREFIX}/share/applications/*.desktop 2>/dev/null ||
		warn "you may not need USES=desktop-file-utils"
	fi
	return 0
}

sharedmimeinfo() {
	local f found

	found=0
	for f in ${STAGEDIR}${PREFIX}/share/mime/packages/*.xml; do
		[ "${f}" = "${STAGEDIR}${PREFIX}/share/mime/packages/*.xml" ] && break #no matches
		[ "${f}" = "${STAGEDIR}${PREFIX}/share/mime/packages/freedesktop.org.xml" ] && continue
		found=1
		break
	done
	if [ -z "${USESSHAREDMIMEINFO}" -a ${found} -eq 1 ]; then
		warn "you need USES=shared-mime-info"
	elif [ -n "${USESSHAREDMIMEINFO}" -a ${found} -eq 0 ]; then
		warn "you may not need USES=shared-mime-info"
	fi
	return 0
}

suidfiles() {
	local filelist

	filelist=`find ${STAGEDIR} -type f \
		\( -perm -u+x -or -perm -g+x -or -perm -o+x \) \
		\( -perm -u+s -or -perm -g+s \)`
	if [ -n "${filelist}" ]; then
		warn "setuid files in the stage directory (are these necessary?):"
		ls -liTd ${filelist}
	fi
	return 0
}

libtool() {
	if [ -z "${USESLIBTOOL}" ]; then
		find ${STAGEDIR} -name '*.la' | while read f; do
			grep -q 'libtool library' "${f}" &&
				err ".la libraries found, port needs USES=libtool" &&
				return 1 || true
		done
		# The return above continues here.
	fi
}

libperl() {
	local has_some_libperl_so files found
	if [ -n "${SITE_ARCH_REL}" -a -d "${STAGEDIR}${PREFIX}/${SITE_ARCH_REL}" ]; then
		has_some_libperl_so=0
		files=0
		while read f; do
			# No results presents a blank line from heredoc.
			[ -z "${f}" ] && continue
			files=$((files+1))
			found=`readelf -d ${f} | awk "BEGIN {libperl=1; rpath=10; runpath=100}
				/NEEDED.*${LIBPERL}/  { libperl = 0 }
				/RPATH.*perl.*CORE/   { rpath   = 0 }
				/RUNPATH.*perl.*CORE/ { runpath = 0 }
				END {print libperl+rpath+runpath}
				"`
			case "${found}" in
				*1)
					warn "${f} is not linked with ${LIBPERL}, not respecting lddlflags?"
					;;
				*0)
					has_some_libperl_so=1
					# Older Perl did not USE_LDCONFIG.
					if [ ! -f ${LOCALBASE}/${LDCONFIG_DIR}/perl5 ]; then
						case "${found}" in
							*1?)
								warn "${f} does not have a rpath to ${LIBPERL}, not respecting lddlflags?"
								;;
						esac
						case "${found}" in
							1??)
								warn "${f} does not have a runpath to ${LIBPERL}, not respecting lddlflags?"
								;;
						esac
					fi
					;;
			esac
		# Use heredoc to avoid losing rc from find|while subshell
		done <<-EOT
		$(find ${STAGEDIR}${PREFIX}/${SITE_ARCH_REL} -name '*.so')
		EOT

		if [ ${files} -gt 0 -a ${has_some_libperl_so} -eq 0 ]; then
			err "None of the .so in ${STAGEDIR}${PREFIX}/${SITE_ARCH_REL} are linked with ${LIBPERL}, see above for the full list."
			return 1
		else
			return 0
		fi
	fi
}

prefixvar() {
	if test -d ${STAGEDIR}${PREFIX}/var; then
		warn "port uses ${PREFIX}/var instead of /var"
	fi
}

terminfo() {
	local f found

	for f in ${STAGEDIR}${PREFIX}/share/misc/*.terminfo; do
		[ "${f}" = "${STAGEDIR}${PREFIX}/share/misc/*.terminfo" ] && break #no matches
		found=1
		break
	done
	for f in ${STAGEDIR}${PREFIX}/share/misc/terminfo.db*; do
		[ "${f}" = "${STAGEDIR}${PREFIX}/share/misc/terminfo.db*" ] && break #no matches
		found=1
		break
	done
	if [ -z "${USESTERMINFO}" -a -n "${found}" ]; then
		warn "you need USES=terminfo"
	elif [ -n "${USESTERMINFO}" -a -z "${found}" ]; then
		warn "you may not need USES=terminfo"
	fi
	return 0
}

listcontains() {
	local str lst elt
	str=$1
	lst=$2

	for elt in ${lst} ; do
		if [ ${elt} = ${str} ]; then
			return 0
		fi
	done
	return 1
}

proxydeps_suggest_uses() {
	local pkg=$1
	local lib_file=$2

	# miscellaneous USE clauses
	if [ ${pkg} = 'devel/gettext-runtime' ]; then
		warn "you need USES+=gettext"
	elif [ ${pkg} = 'databases/sqlite3' ]; then
		warn "you need USES+=sqlite"
	elif [ ${pkg} = 'databases/sqlite2' ]; then
		warn "you need USES+=sqlite:2"
	# Gnome -> same as port
	# grep LIB_DEPENDS= Mk/Uses/gnome.mk |sed -e 's|\(.*\)_LIB_DEPENDS.*:\(.*\)\/\(.*\)|[ "\1" = "\3" ] \&\& echo "\\${pkg} = \\\"\2/\3\\\" -o \\\\"|'|sort|sh
	elif [ ${pkg} = "accessibility/atk" -o \
		${pkg} = "accessibility/atkmm" -o \
		${pkg} = "graphics/cairo" -o \
		${pkg} = "graphics/cairomm" -o \
		${pkg} = "devel/dconf" -o \
		${pkg} = "audio/esound" -o \
		${pkg} = "x11-toolkits/gal2" -o \
		${pkg} = "devel/gconf2" -o \
		${pkg} = "devel/gconfmm26" -o \
		${pkg} = "devel/glib12" -o \
		${pkg} = "devel/glib20" -o \
		${pkg} = "devel/glibmm" -o \
		${pkg} = "audio/gsound" -o \
		${pkg} = "x11-toolkits/gtk12" -o \
		${pkg} = "x11-toolkits/gtk20" -o \
		${pkg} = "x11-toolkits/gtk30" -o \
		${pkg} = "www/gtkhtml3" -o \
		${pkg} = "www/gtkhtml4" -o \
		${pkg} = "x11-toolkits/gtkmm20" -o \
		${pkg} = "x11-toolkits/gtkmm24" -o \
		${pkg} = "x11-toolkits/gtkmm30" -o \
		${pkg} = "x11-toolkits/gtksourceview" -o \
		${pkg} = "x11-toolkits/gtksourceview2" -o \
		${pkg} = "x11-toolkits/gtksourceview3" -o \
		${pkg} = "x11-toolkits/gtksourceviewmm3" -o \
		${pkg} = "devel/libbonobo" -o \
		${pkg} = "x11-toolkits/libbonoboui" -o \
		${pkg} = "databases/libgda4" -o \
		${pkg} = "databases/libgda5" -o \
		${pkg} = "databases/libgda5-ui" -o \
		${pkg} = "databases/libgdamm" -o \
		${pkg} = "databases/libgdamm5" -o \
		${pkg} = "devel/libglade2" -o \
		${pkg} = "x11/libgnome" -o \
		${pkg} = "graphics/libgnomecanvas" -o \
		${pkg} = "x11/libgnomekbd" -o \
		${pkg} = "print/libgnomeprint" -o \
		${pkg} = "x11-toolkits/libgnomeprintui" -o \
		${pkg} = "x11-toolkits/libgnomeui" -o \
		${pkg} = "devel/libgsf" -o \
		${pkg} = "www/libgtkhtml" -o \
		${pkg} = "x11-toolkits/libgtksourceviewmm" -o \
		${pkg} = "graphics/librsvg2" -o \
		${pkg} = "devel/libsigc++12" -o \
		${pkg} = "devel/libsigc++20" -o \
		${pkg} = "x11-toolkits/libwnck" -o \
		${pkg} = "x11-toolkits/libwnck3" -o \
		${pkg} = "textproc/libxml++26" -o \
		${pkg} = "textproc/libxml2" -o \
		${pkg} = "textproc/libxslt" -o \
		${pkg} = "x11-wm/metacity" -o \
		${pkg} = "x11-toolkits/pango" -o \
		${pkg} = "x11-toolkits/pangomm" -o \
		${pkg} = "x11-toolkits/pangox-compat" -o \
		${pkg} = "x11-toolkits/vte" -o \
		${pkg} = "x11-toolkits/vte3" ]; then
		warn "you need USE_GNOME+=${pkg#*/}"
	# Gnome different as port
	# grep LIB_DEPENDS= Mk/Uses/gnome.mk |sed -e 's|\(.*\)_LIB_DEPENDS.*:\(.*\)\/\(.*\)|[ "\1" = "\3" ] \|\| echo "elif [ \\${pkg} = \\\"\2/\3\\\" ]; then; warn \\\"you need USE_GNOME+=\1\\\""|'|sort|sh
	elif [ ${pkg} = "accessibility/at-spi" ]; then warn "you need USE_GNOME+=atspi"
	elif [ ${pkg} = "databases/evolution-data-server" ]; then warn "you need USE_GNOME+=evolutiondataserver3"
	elif [ ${pkg} = "graphics/gdk-pixbuf" ]; then warn "you need USE_GNOME+=gdkpixbuf"
	elif [ ${pkg} = "graphics/gdk-pixbuf2" ]; then warn "you need USE_GNOME+=gdkpixbuf2"
	elif [ ${pkg} = "x11/gnome-desktop" ]; then warn "you need USE_GNOME+=gnomedesktop3"
	elif [ ${pkg} = "accessibility/gnome-speech" ]; then warn "you need USE_GNOME+=gnomespeech"
	elif [ ${pkg} = "devel/gnome-vfs" ]; then warn "you need USE_GNOME+=gnomevfs2"
	elif [ ${pkg} = "devel/gobject-introspection" ]; then warn "you need USE_GNOME+=introspection"
	elif [ ${pkg} = "graphics/libart_lgpl" ]; then warn "you need USE_GNOME+=libartlgpl2"
	elif [ ${pkg} = "devel/libIDL" ]; then warn "you need USE_GNOME+=libidl"
	elif [ ${pkg} = "x11-fm/nautilus" ]; then warn "you need USE_GNOME+=nautilus3"
	elif [ ${pkg} = "devel/ORBit2" ]; then warn "you need USE_GNOME+=orbit2"
	# mate
	# grep LIB_DEPENDS= Mk/Uses/mate.mk |sed -e 's|\(.*\)_LIB_DEPENDS.*:\(.*\)\/\(.*\)|elif [ ${pkg} = "\2/\3" ]; then warn "you need USE_MATE+=\1"|'
	elif [ ${pkg} = "x11-fm/caja" ]; then warn "you need USE_MATE+=caja"
	elif [ ${pkg} = "sysutils/mate-control-center" ]; then warn "you need USE_MATE+=controlcenter"
	elif [ ${pkg} = "x11/mate-desktop" ]; then warn "you need USE_MATE+=desktop"
	elif [ ${pkg} = "x11/libmatekbd" ]; then warn "you need USE_MATE+=libmatekbd"
	elif [ ${pkg} = "net/libmateweather" ]; then warn "you need USE_MATE+=libmateweather"
	elif [ ${pkg} = "x11-wm/marco" ]; then warn "you need USE_MATE+=marco"
	elif [ ${pkg} = "x11/mate-menus" ]; then warn "you need USE_MATE+=menus"
	elif [ ${pkg} = "x11/mate-panel" ]; then warn "you need USE_MATE+=panel"
	elif [ ${pkg} = "sysutils/mate-polkit" ]; then warn "you need USE_MATE+=polkit"
	# sdl-related
	elif [ ${pkg} = 'devel/sdl12' ]; then
		warn "you need USE_SDL+=sdl"
	elif echo ${pkg} | grep -E '/sdl_(console|gfx|image|mixer|mm|net|pango|sound|ttf)$' > /dev/null; then
		warn "you need USE_SDL+=$(echo ${pkg} | sed -E 's|.*/sdl_||')"
	elif [ ${pkg} = 'devel/sdl20' ]; then
		warn "you need USE_SDL+=sdl2"
	elif echo ${pkg} | grep -E '/sdl2_(gfx|image|mixer|net|ttf)$' > /dev/null; then
		warn "you need USE_SDL+=$(echo ${pkg} | sed -E 's|.*/sdl2_||')2"
	# gl-related
	elif [ ${pkg} = 'graphics/libGL' ]; then
		warn "you need USE_GL+=gl"
	elif [ ${pkg} = 'graphics/gbm' ]; then
		warn "you need USE_GL+=gbm"
	elif [ ${pkg} = 'graphics/libglesv2' ]; then
		warn "you need USE_GL+=glesv2"
	elif [ ${pkg} = 'graphics/libEGL' ]; then
		warn "you need USE_GL+=egl"
	elif [ ${pkg} = 'graphics/glew' ]; then
		warn "you need USE_GL+=glew"
	elif [ ${pkg} = 'graphics/libGLU' ]; then
		warn "you need USE_GL+=glu"
	elif [ ${pkg} = 'graphics/libGLw' ]; then
		warn "you need USE_GL+=glw"
	elif [ ${pkg} = 'graphics/freeglut' ]; then
		warn "you need USE_GL+=glut"
	# Xorg-libraries: this should be by XORG_MODULES @ bsd.xorg.mk
	elif echo ${pkg} | grep -E '/lib(X11|Xau|Xdmcp|Xext|SM|ICE|Xfixes|Xft|Xdamage|Xcomposite|Xcursor|Xinerama|Xmu|Xmuu|Xpm|Xt|Xtst|Xi|Xrandr|Xrender|Xres|XScrnSaver|Xv|Xxf86vm|Xxf86dga|Xxf86misc|xcb)$' > /dev/null; then
		warn "you need USE_XORG+=$(echo ${pkg} | sed -E 's|.*/lib||' | tr '[:upper:]' '[:lower:]')"
	elif [ ${pkg} = 'x11/pixman' ]; then
		warn "you need USE_XORG+=pixman"
	# Qt4
	elif expr ${pkg} : '.*/qt4-.*' > /dev/null; then
		warn "you need USE_QT4+=$(echo ${pkg} | sed -E 's|.*/qt4-||')"
	# Qt5
	elif expr ${pkg} : '.*/qt5-.*' > /dev/null; then
		warn "you need USE_QT5+=$(echo ${pkg} | sed -E 's|.*/qt5-||')"
	# MySQL
	elif expr ${lib_file} : "${LOCALBASE}/lib/mysql/[^/]*$" > /dev/null; then
		warn "you need USES+=mysql"
	# postgresql
	elif expr ${pkg} : "^databases/postgresql.*-client" > /dev/null; then
		warn "you need USES+=pgsql"
	# bdb
	elif expr ${pkg} : "^databases/db[456]" > /dev/null; then
		warn "you need USES+=bdb"
	# execinfo
	elif [ ${pkg} = "devel/libexecinfo" ]; then
		warn "you need USES+=execinfo"
	# fam/gamin
	elif [ ${pkg} = "devel/fam" -o ${pkg} = "devel/gamin" ]; then
		warn "you need USES+=fam"
	# firebird
	elif [ ${pkg} = "databases/firebird25-client" ]; then
		warn "you need USES+=firebird"
	# fuse
	elif [ ${pkg} = "sysutils/fusefs-libs" ]; then
		warn "you need USES+=fuse"
	# gnustep
	elif [ ${pkg} = "lang/gnustep-base" ]; then
		warn "you need USES+=gnustep and USE_GNUSTEP+=base"
	elif [ ${pkg} = "x11-toolkits/gnustep-gui" ]; then
		warn "you need USES+=gnustep and USE_GNUSTEP+=gui"
	# iconv
	elif [ ${pkg} = "converters/libiconv" ]; then
		warn "you need USES+=iconv"
	# jpeg
	elif [ ${pkg} = "graphics/jpeg" -o ${pkg} = "graphics/jpeg-turbo" ]; then
		warn "you need USES+=jpeg"
	# libarchive
	elif [ ${pkg} = "archivers/libarchive" ]; then
		warn "you need USES+=libarchive"
	elif [ ${pkg} = "devel/libedit" ]; then
		warn "you need USES+=libedit"
	# lua
	elif expr ${pkg} : "^lang/lua" > /dev/null; then
		warn "you need USES+=lua"
	# motif
	elif [ ${pkg} = "x11-toolkits/lesstif" -o ${pkg} = "x11-toolkits/open-motif" ]; then
		warn "you need USES+=motif"
	# objc
	elif [ ${pkg} = "lang/libobjc2" ]; then
		warn "you need USES+=objc"
	# openal
	elif [ ${pkg} = "audio/openal" -o ${pkg} = "audio/openal-soft" -o ${pkg} = "audio/freealut" ]; then
		warn "you need USES+=openal"
	# pure
	elif [ ${pkg} = "lang/pure" ]; then
		warn "you need USES+=pure"
	# readline
	elif [ ${pkg} = "devel/readline" ]; then
		warn "you need USES+=readline"
	# ssl
	elif [ ${pkg} = "security/openssl" -o ${pkg} = "security/openssl-devel" \
	  -o ${pkg} = "security/libressl" -o ${pkg} = "security/libressl-devel" \
	  ]; then
		warn "you need USES=ssl"
	# Tcl
	elif expr ${pkg} : "^lang/tcl" > /dev/null; then
		warn "you need USES+=tcl"
	# Tk
	elif expr ${pkg} : "^x11-toolkits/tk" > /dev/null; then
		warn "you need USES+=tk"
	# Xfce
	# grep LIB_DEPENDS= Mk/Uses/xfce.mk |sed -e 's|\(.*\)_LIB_DEPENDS.*:\(.*\)\/\(.*\)|elif [ ${pkg} = "\2/\3" ]; then warn "you need USE_XFCE+=\1"|'
	elif [ ${pkg} = "sysutils/garcon" ]; then warn "you need USE_XFCE+=garcon"
	elif [ ${pkg} = "x11/libexo" ]; then warn "you need USE_XFCE+=libexo"
	elif [ ${pkg} = "x11-toolkits/libxfce4gui" ]; then warn "you need USE_XFCE+=libgui"
	elif [ ${pkg} = "x11/libxfce4menu" ]; then warn "you need USE_XFCE+=libmenu"
	elif [ ${pkg} = "x11/libxfce4util" ]; then warn "you need USE_XFCE+=libutil"
	elif [ ${pkg} = "x11-wm/xfce4-panel" ]; then warn "you need USE_XFCE+=panel"
	elif [ ${pkg} = "x11-fm/thunar" ]; then warn "you need USE_XFCE+=thunar"
	elif [ ${pkg} = "x11/xfce4-conf" ]; then warn "you need USE_XFCE+=xfconf"
	# default
	elif expr ${lib_file} : "${LOCALBASE}/lib/[^/]*$" > /dev/null; then
		lib_file=${lib_file#${LOCALBASE}/lib/}
		lib_file=${lib_file%.so*}.so
		warn "you need LIB_DEPENDS+=${lib_file}:${pkg}"
	fi
}

subst_dep_file() {
	local dep_file=$1
	if expr ${dep_file} : "${LOCALBASE}/lib/libGL.so.[0-9]$" > /dev/null; then
		if [ -f ${LOCALBASE}/lib/.mesa/libGL.so ]; then
			echo ${LOCALBASE}/lib/.mesa/libGL.so
			return
		fi
	elif expr ${dep_file} : "${LOCALBASE}/lib/libEGL.so.[0-9]$" > /dev/null; then
		if [ -f ${LOCALBASE}/lib/.mesa/libEGL.so ]; then
			echo ${LOCALBASE}/lib/.mesa/libEGL.so
			return
		fi
	fi
	echo ${dep_file}
}

proxydeps() {
	local file dep_file dep_file_pkg already rc

	rc=0

	# Check all dynamicaly linked ELF files
	# Some .so are not executable, but we want to check them too.
	while read file; do
		# No results presents a blank line from heredoc.
		[ -z "${file}" ] && continue
		while read dep_file; do
			# No results presents a blank line from heredoc.
			[ -z "${dep_file}" ] && continue
			dep_file=$(subst_dep_file ${dep_file})
			if listcontains ${dep_file} "${already}"; then
				continue
			fi
			if $(pkg which -q ${dep_file} > /dev/null 2>&1); then
				dep_file_pkg=$(pkg which -qo ${dep_file})
				if ! listcontains ${dep_file_pkg} "${LIB_RUN_DEPENDS} ${PKGORIGIN}"; then
					err "${file} is linked to ${dep_file} from ${dep_file_pkg} but it is not declared as a dependency"
					proxydeps_suggest_uses ${dep_file_pkg} ${dep_file}
					rc=1
				fi
			else
				err "${file} is linked to ${dep_file} that does not belong to any package"
				rc=1
			fi
			already="${already} ${dep_file}"
		done <<-EOT
		$(LD_LIBRARY_PATH=${LOCALBASE}/lib ldd -a "${STAGEDIR}${file}" | \
			awk '\
			BEGIN {section=0}\
			/^\// {section++}\
			!/^\// && section<=1 && ($3 ~ "^'${PREFIX}'" || $3 ~ "^'${LOCALBASE}'") {print $3}')
		EOT
	done <<-EOT
	$(cd ${STAGEDIR} && find -s . -type f \( -perm +111 -o -name '*.so*' \) | \
		file -F $'\1' -f - | \
		grep -a 'ELF.*dynamically linked' | \
		cut -f 1 -d $'\1'| \
		sed -e 's/^\.//')
	EOT

	[ -z "${PROXYDEPS_FATAL}" ] && return 0

	return ${rc}
}

checks="shebang symlinks paths stripped desktopfileutils sharedmimeinfo"
checks="$checks suidfiles libtool libperl prefixvar baselibs terminfo"
checks="$checks proxydeps"

ret=0
cd ${STAGEDIR}
for check in ${checks}; do
	${check} || ret=1
done

exit ${ret}