media-gfx/sane-backends: Bump to version 1.0.31

- Fixed build with autoconf-2.70 (#750374)
- Added support for pieusb backend (#744703)
- Added python-any-r1 eclass because the auto-generated gitlab
  tarballs we use require to generate some files with a shipped
  python script
- Removed user LDFLAGS from pkgconfig files
- Converted some variables into arrays
- Minor ebuild overhaul

Closes: https://bugs.gentoo.org/744703
Closes: https://bugs.gentoo.org/750374
Closes: https://bugs.gentoo.org/759982
Package-Manager: Portage-3.0.13, Repoman-3.0.2
Signed-off-by: Lars Wendler <polynomial-c@gentoo.org>

6 files changed, 545 insertions, 0 deletions

diff --git a/media-gfx/sane-backends/Manifest b/media-gfx/sane-backends/Manifest
index 4a1266cd0039..ab68444f7480 100644
--- a/media-gfx/sane-backends/Manifest
+++ b/media-gfx/sane-backends/Manifest
@@ -1 +1,2 @@
 DIST backends-1.0.30.tar.gz 5721262 BLAKE2B 139d3ca908d54b94d14ef4145d44a89b939807c15870be03c3c028cf95351bf9a4abd3ea115b84396366bb054f37ade883f429467dceb0663c2855b92e0a4fa5 SHA512 19127c8109c1587d60d8cba713f73b1a24242df44fa49c3e59320f48022783f05d26d3242a3f87478e583a807d88b446ef7a51afb33b674be29656496c435d7b
+DIST backends-1.0.31.tar.gz 5731445 BLAKE2B d70691acbd3f5788a26bab6b35eeb243801b435272b57e3fa568127562ff57797452e396e6e5f058c33d3bce0f99b672542fb89bc8eb4d36cbe82ccc20b8f298 SHA512 d8ef05cc3aa9c4fa42c9241e1e61fc93e7959df3746a3a2cfaa6e4fb26dfd0911b4d3227b2da28852f8630fa17ad3432a1230a6f4425340e79a3b82ec5eaa9eb
diff --git a/media-gfx/sane-backends/files/sane-backends-1.0.31-autoconf-2.70.patch b/media-gfx/sane-backends/files/sane-backends-1.0.31-autoconf-2.70.patch
new file mode 100644
index 000000000000..f1fe4765bdd5
--- /dev/null
+++ b/media-gfx/sane-backends/files/sane-backends-1.0.31-autoconf-2.70.patch
@@ -0,0 +1,93 @@
+From 445b5bd7e19245c08de6a0e669dd9211d2597bfa Mon Sep 17 00:00:00 2001
+From: Olaf Meeuwissen <paddy-hack@member.fsf.org>
+Date: Fri, 1 Jan 2021 15:53:11 +0900
+Subject: [PATCH] Drop use of obsoleted autoconf AC_HEADER_STDC macro.  Fixes
+ #409
+
+Use of the STDC_HEADER pre-processor macro that the autoconf macro
+used to define has been removed.  Conditionalized code is now used
+unconditionally.  This should be fine as the macro checks for ANSI
+C, i.e. C89 (ISO C90), compliant headers.  We already require C99.
+---
+ acinclude.m4        |  3 ---
+ lib/md5.c           | 10 ++--------
+ sanei/sanei_pa4s2.c |  8 +++-----
+ sanei/sanei_pp.c    |  8 +++-----
+ 4 files changed, 8 insertions(+), 21 deletions(-)
+
+diff --git a/acinclude.m4 b/acinclude.m4
+index e10f8ceb2..9393278c2 100644
+--- a/acinclude.m4
++++ b/acinclude.m4
+@@ -73,9 +73,6 @@ AC_DEFUN([SANE_CHECK_MISSING_HEADERS],
+   if test "${ac_cv_header_unistd_h}" != "yes" ; then
+     MISSING_HEADERS="${MISSING_HEADERS}\"unistd.h\" "
+   fi
+-  if test "${ac_cv_header_stdc}" != "yes" ; then
+-    MISSING_HEADERS="${MISSING_HEADERS}\"ANSI C headers\" "
+-  fi
+   if test "${MISSING_HEADERS}" != "" ; then
+     echo "*** The following essential header files couldn't be found:"
+     echo "*** ${MISSING_HEADERS}"
+diff --git a/lib/md5.c b/lib/md5.c
+index 923a17c78..009c6d9a0 100644
+--- a/lib/md5.c
++++ b/lib/md5.c
+@@ -26,14 +26,8 @@
+ 
+ #include <sys/types.h>
+ 
+-#if STDC_HEADERS || defined _LIBC
+-# include <stdlib.h>
+-# include <string.h>
+-#else
+-# ifndef HAVE_MEMCPY
+-#  define memcpy(d, s, n) bcopy ((s), (d), (n))
+-# endif
+-#endif
++#include <stdlib.h>
++#include <string.h>
+ 
+ #include "md5.h"
+ 
+diff --git a/sanei/sanei_pa4s2.c b/sanei/sanei_pa4s2.c
+index b1d95fe02..5365151fd 100644
+--- a/sanei/sanei_pa4s2.c
++++ b/sanei/sanei_pa4s2.c
+@@ -150,11 +150,9 @@ static int sanei_pa4s2_dbg_init_called = SANE_FALSE;
+ 
+ #endif /* NDEBUG */
+ 
+-#if defined(STDC_HEADERS)
+-# include <errno.h>
+-# include <stdio.h>
+-# include <stdlib.h>
+-#endif
++#include <errno.h>
++#include <stdio.h>
++#include <stdlib.h>
+ #if defined(HAVE_STRING_H)
+ # include <string.h>
+ #elif defined(HAVE_STRINGS_H)
+diff --git a/sanei/sanei_pp.c b/sanei/sanei_pp.c
+index 3077342e4..752945a89 100644
+--- a/sanei/sanei_pp.c
++++ b/sanei/sanei_pp.c
+@@ -135,11 +135,9 @@ inb( u_long port )
+ #include "../include/sane/sanei_debug.h"
+ #include "../include/sane/sanei_pp.h"
+ 
+-#if defined(STDC_HEADERS)
+-# include <errno.h>
+-# include <stdio.h>
+-# include <stdlib.h>
+-#endif
++#include <errno.h>
++#include <stdio.h>
++#include <stdlib.h>
+ #if defined(HAVE_STRING_H)
+ # include <string.h>
+ #elif defined(HAVE_STRINGS_H)
+-- 
+GitLab
+
diff --git a/media-gfx/sane-backends/files/sane-backends-1.0.31-backend_pot_input.patch b/media-gfx/sane-backends/files/sane-backends-1.0.31-backend_pot_input.patch
new file mode 100644
index 000000000000..69585784c252
--- /dev/null
+++ b/media-gfx/sane-backends/files/sane-backends-1.0.31-backend_pot_input.patch
@@ -0,0 +1,33 @@
+From 4846d36ad1e9ca709cb3a2eaa839c8c79effe34b Mon Sep 17 00:00:00 2001
+From: Olaf Meeuwissen <paddy-hack@member.fsf.org>
+Date: Sun, 13 Sep 2020 17:56:40 +0900
+Subject: [PATCH] po: Make sure all sane-backends.pot input are available
+
+---
+ po/Makevars | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/po/Makevars b/po/Makevars
+index ebff23f90..86f423ef3 100644
+--- a/po/Makevars
++++ b/po/Makevars
+@@ -1,5 +1,6 @@
+ #  Makevars -- snippet for inclusion in po/ -*- Makefile -*-
+-#  Copyright (C) 2016, 2019  Olaf Meeuwissen and the SANE developers
++#  Copyright (C) 2016, 2019, 2020  Olaf Meeuwissen
++#    and the SANE developers
+ #
+ #  This file is part of the SANE build infra-structure.  See the
+ #  included LICENSE file for license information.
+@@ -47,3 +48,8 @@ width_options     = --width=75
+ #  Locale categories, in addition to LC_MESSAGES, for which message
+ #  catalogs are to be used.
+ EXTRA_LOCALE_CATEGORIES =
++
++#  Selected files in POTFILES.in are generated.  Make sure they are
++#  available when needed.
++$(top_srcdir)/backend/pixma/pixma_sane_options.c:
++	cd ../backend; make pixma/pixma_sane_options.c
+-- 
+GitLab
+
diff --git a/media-gfx/sane-backends/files/sane-backends-1.0.31-udev_rules_update.patch b/media-gfx/sane-backends/files/sane-backends-1.0.31-udev_rules_update.patch
new file mode 100644
index 000000000000..17ccb60755e0
--- /dev/null
+++ b/media-gfx/sane-backends/files/sane-backends-1.0.31-udev_rules_update.patch
@@ -0,0 +1,55 @@
+https://gitlab.com/sane-project/backends/-/merge_requests/541
+
+--- sane-backends-1.0.31/testsuite/tools/data/udev+acl.ref
++++ sane-backends-1.0.31/testsuite/tools/data/udev+acl.ref
+@@ -23,7 +23,7 @@
+ # If the scanner is supported by sane-backends, please mail the entry to
+ # the sane-devel mailing list (sane-devel@alioth-lists.debian.net).
+ #
+-ACTION!="add", GOTO="libsane_rules_end"
++ACTION=="remove", GOTO="libsane_rules_end"
+ ENV{DEVTYPE}=="usb_device", GOTO="libsane_create_usb_dev"
+ SUBSYSTEMS=="scsi", GOTO="libsane_scsi_rules_begin"
+ SUBSYSTEM=="usb_device", GOTO="libsane_usb_rules_begin"
+--- sane-backends-1.0.31/testsuite/tools/data/udev+hwdb.ref
++++ sane-backends-1.0.31/testsuite/tools/data/udev+hwdb.ref
+@@ -20,7 +20,7 @@
+ # If the scanner is supported by sane-backends, please mail the entry to
+ # the sane-devel mailing list (sane-devel@alioth-lists.debian.net).
+ #
+-ACTION!="add", GOTO="libsane_rules_end"
++ACTION=="remove", GOTO="libsane_rules_end"
+ 
+ # The following rule will disable USB autosuspend for the device
+ ENV{DEVTYPE}=="usb_device", ENV{libsane_matched}=="yes", TEST=="power/control", ATTR{power/control}="on"
+--- sane-backends-1.0.31/testsuite/tools/data/udev.ref
++++ sane-backends-1.0.31/testsuite/tools/data/udev.ref
+@@ -23,7 +23,7 @@
+ # If the scanner is supported by sane-backends, please mail the entry to
+ # the sane-devel mailing list (sane-devel@alioth-lists.debian.net).
+ #
+-ACTION!="add", GOTO="libsane_rules_end"
++ACTION=="remove", GOTO="libsane_rules_end"
+ ENV{DEVTYPE}=="usb_device", GOTO="libsane_create_usb_dev"
+ SUBSYSTEMS=="scsi", GOTO="libsane_scsi_rules_begin"
+ SUBSYSTEM=="usb_device", GOTO="libsane_usb_rules_begin"
+--- sane-backends-1.0.31/tools/sane-desc.c
++++ sane-backends-1.0.31/tools/sane-desc.c
+@@ -3496,7 +3496,7 @@
+   int i;
+ 
+   print_udev_header ();
+-  printf("ACTION!=\"add\", GOTO=\"libsane_rules_end\"\n"
++  printf("ACTION==\"remove\", GOTO=\"libsane_rules_end\"\n"
+ 	 "ENV{DEVTYPE}==\"usb_device\", GOTO=\"libsane_create_usb_dev\"\n"
+ 	 "SUBSYSTEMS==\"scsi\", GOTO=\"libsane_scsi_rules_begin\"\n"
+ 	 "SUBSYSTEM==\"usb_device\", GOTO=\"libsane_usb_rules_begin\"\n"
+@@ -3679,7 +3679,7 @@
+   int i;
+ 
+   print_udevhwdb_header ();
+-  printf("ACTION!=\"add\", GOTO=\"libsane_rules_end\"\n\n");
++  printf("ACTION==\"remove\", GOTO=\"libsane_rules_end\"\n\n");
+ 
+   printf("# The following rule will disable USB autosuspend for the device\n");
+   printf("ENV{DEVTYPE}==\"usb_device\", ENV{libsane_matched}==\"yes\", TEST==\"power/control\", ATTR{power/control}=\"on\"\n\n");
diff --git a/media-gfx/sane-backends/sane-backends-1.0.31.ebuild b/media-gfx/sane-backends/sane-backends-1.0.31.ebuild
new file mode 100644
index 000000000000..abf6a807651c
--- /dev/null
+++ b/media-gfx/sane-backends/sane-backends-1.0.31.ebuild
@@ -0,0 +1,362 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{6..9} )
+
+# python-any-r1 required for a script in
+# backends/pixma/scripts/ 
+inherit autotools flag-o-matic multilib-minimal optfeature python-any-r1 systemd toolchain-funcs udev user
+
+# gphoto and v4l are handled by their usual USE flags.
+# The pint backend was disabled because I could not get it to compile.
+IUSE_SANE_BACKENDS=(
+	abaton
+	agfafocus
+	apple
+	artec
+	artec_eplus48u
+	as6e
+	avision
+	bh
+	canon
+	canon630u
+	canon_dr
+	canon_pp
+	cardscan
+	coolscan
+	coolscan2
+	coolscan3
+	dc210
+	dc240
+	dc25
+	dell1600n_net
+	dmc
+	epjitsu
+	epson
+	epson2
+	escl
+	fujitsu
+	genesys
+	gt68xx
+	hp
+	hp3500
+	hp3900
+	hp4200
+	hp5400
+	hp5590
+	hpljm1005
+	hpsj5s
+	hs2p
+	ibm
+	kodak
+	kodakaio
+	kvs1025
+	kvs20xx
+	kvs40xx
+	leo
+	lexmark
+	ma1509
+	magicolor
+	matsushita
+	microtek
+	microtek2
+	mustek
+	mustek_pp
+	mustek_usb
+	mustek_usb2
+	nec
+	net
+	niash
+	p5
+	pie
+	pieusb
+	pixma
+	plustek
+	plustek_pp
+	pnm
+	qcam
+	ricoh
+	ricoh2
+	rts8891
+	s9036
+	sceptre
+	sharp
+	sm3600
+	sm3840
+	snapscan
+	sp15c
+	st400
+	stv680
+	tamarack
+	teco1
+	teco2
+	teco3
+	test
+	u12
+	umax
+	umax1220u
+	umax_pp
+	xerox_mfp
+)
+
+IUSE="gphoto2 ipv6 snmp systemd threads usb v4l xinetd +zeroconf"
+
+for GBACKEND in ${IUSE_SANE_BACKENDS[@]}; do
+	case ${GBACKEND} in
+	# Disable backends that require parallel ports as no one has those anymore.
+	canon_pp|hpsj5s|mustek_pp|\
+	pnm|mustek_usb2|kvs40xx)
+		IUSE+=" sane_backends_${GBACKEND}"
+		;;
+	*)
+		IUSE+=" +sane_backends_${GBACKEND}"
+	esac
+done
+
+REQUIRED_USE="
+	sane_backends_escl? ( zeroconf )
+	sane_backends_kvs40xx? ( threads )
+	sane_backends_mustek_usb2? ( threads )
+"
+
+MY_PN="${PN//sane-/}"
+MY_P="${MY_PN}-${PV}"
+
+DESCRIPTION="Scanner Access Now Easy - Backends"
+HOMEPAGE="http://www.sane-project.org/"
+SRC_URI="https://gitlab.com/sane-project/backends/-/archive/${PV}/${MY_P}.tar.gz"
+
+LICENSE="GPL-2 public-domain"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux"
+
+# For pixma: see https://gitlab.com/sane-project/backends/-/releases/1.0.28#build
+RDEPEND="
+	gphoto2? (
+		>=media-libs/libgphoto2-2.5.3.1:=[${MULTILIB_USEDEP}]
+		>=virtual/jpeg-0-r2:0=[${MULTILIB_USEDEP}]
+	)
+	sane_backends_canon_pp? ( >=sys-libs/libieee1284-0.2.11-r3[${MULTILIB_USEDEP}] )
+	sane_backends_dc210? ( >=virtual/jpeg-0-r2:0=[${MULTILIB_USEDEP}] )
+	sane_backends_dc240? ( >=virtual/jpeg-0-r2:0=[${MULTILIB_USEDEP}] )
+	sane_backends_dell1600n_net? (
+		>=media-libs/tiff-3.9.7-r1:0=[${MULTILIB_USEDEP}]
+		>=virtual/jpeg-0-r2:0=[${MULTILIB_USEDEP}]
+	)
+	sane_backends_escl? (
+		|| (
+			net-dns/avahi[dbus]
+			net-dns/avahi[gtk]
+			net-dns/avahi[gtk2]
+		)
+		net-dns/avahi[${MULTILIB_USEDEP}]
+		net-misc/curl[${MULTILIB_USEDEP}]
+	)
+	sane_backends_hpsj5s? ( >=sys-libs/libieee1284-0.2.11-r3[${MULTILIB_USEDEP}] )
+	sane_backends_mustek_pp? ( >=sys-libs/libieee1284-0.2.11-r3[${MULTILIB_USEDEP}] )
+	sane_backends_pixma? ( >=virtual/jpeg-0-r2:0=[${MULTILIB_USEDEP}] )
+	snmp? ( net-analyzer/net-snmp:0= )
+	systemd? ( sys-apps/systemd:0= )
+	usb? ( >=virtual/libusb-1-r1:1=[${MULTILIB_USEDEP}] )
+	v4l? ( >=media-libs/libv4l-0.9.5[${MULTILIB_USEDEP}] )
+	xinetd? ( sys-apps/xinetd )
+	zeroconf? ( >=net-dns/avahi-0.6.31-r2[${MULTILIB_USEDEP}] )
+"
+
+DEPEND="${RDEPEND}
+	${PYHTON_DEPS}
+	dev-libs/libxml2
+	v4l? ( sys-kernel/linux-headers )
+"
+BDEPEND="
+	sys-devel/autoconf-archive
+	sys-devel/gettext
+	virtual/pkgconfig
+"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-1.0.24-saned_pidfile_location.patch
+	"${FILESDIR}"/${PN}-1.0.27-disable-usb-tests.patch
+	"${FILESDIR}"/${PN}-1.0.30-add_hpaio_epkowa_dll.conf.patch
+	"${FILESDIR}"/${P}-autoconf-2.70.patch #750374
+	"${FILESDIR}"/${P}-udev_rules_update.patch
+	"${FILESDIR}"/${P}-backend_pot_input.patch
+)
+
+S="${WORKDIR}/${MY_P}"
+
+MULTILIB_CHOST_TOOLS=(
+	/usr/bin/sane-config
+)
+
+pkg_setup() {
+	enewgroup scanner
+	enewuser saned -1 -1 -1 scanner
+	python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	default
+
+	# Patch out the git reference so we can run eautoreconf
+	sed \
+		-e "s/m4_esyscmd_s(\[git describe --dirty\])/${PV}/" \
+		-e '/^AM_MAINTAINER_MODE/d' \
+		-i configure.ac || die
+	eautoreconf
+
+	# Fix for "make check".  Upstream sometimes forgets to update this.
+	local ver=$(./configure --version | awk '{print $NF; exit 0}')
+	sed -i \
+		-e "/by sane-desc 3.5 from sane-backends/s:sane-backends .*:sane-backends ${ver}:" \
+		testsuite/tools/data/html* || die
+
+	# don't bleed user LDFLAGS into pkgconfig files
+	sed 's|@LDFLAGS@ ||' -i tools/*.pc.in || die
+}
+
+src_configure() {
+	# From Fedora
+	append-flags -fno-strict-aliasing
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	# the blank is intended - an empty string would result in building ALL backends.
+	local lbackends=" "
+
+	use gphoto2 && lbackends="gphoto2"
+	use v4l && lbackends+=" v4l"
+	local backend
+	for backend in ${IUSE_SANE_BACKENDS[@]} ; do
+		if use "sane_backends_${backend}" && [[ "${backend}" != pnm ]] ; then
+			lbackends+=" ${backend}"
+		fi
+	done
+
+	local myconf=(
+		$(use_with usb)
+		$(multilib_native_use_with snmp)
+
+		# you can only enable this backend, not disable it...
+		$(usex sane_backends_pnm --enable-pnm-backend '')
+		$(usex sane_backends_mustek_pp --enable-parport-directio '')
+	)
+
+	if ! { use sane_backends_canon_pp || use sane_backends_hpsj5s || use sane_backends_mustek_pp ; } ; then
+		myconf+=( sane_cv_use_libieee1284=no )
+	fi
+
+	# relative path must be used for tests to work properly
+	# All distributions pass --disable-locking because /var/lock/sane/ would be a world-writable directory
+	# that break in many ways, bug #636202, #668232, #668350
+	# People can refer to the "Programmer's Documentation" at http://www.sane-project.org/docs.html
+	myconf+=(
+		--disable-locking
+		$(use_with gphoto2)
+		$(multilib_native_use_with systemd)
+		$(use_with v4l)
+		$(use_enable ipv6)
+		$(use_enable threads pthread)
+		$(use_with zeroconf avahi)
+	)
+	ECONF_SOURCE="${S}" \
+	SANEI_JPEG="sanei_jpeg.o" SANEI_JPEG_LO="sanei_jpeg.lo" \
+	BACKENDS="${lbackends}" \
+	econf "${myconf[@]}"
+}
+
+multilib_src_compile() {
+	emake VARTEXFONTS="${T}/fonts"
+
+	if tc-is-cross-compiler ; then
+		pushd "${BUILD_DIR}"/tools >/dev/null || die
+
+		# The build system sucks and doesn't handle this properly.
+		# https://alioth.debian.org/tracker/index.php?func=detail&aid=314236&group_id=30186&atid=410366
+		tc-export_build_env BUILD_CC
+		${BUILD_CC} ${BUILD_CPPFLAGS} ${BUILD_CFLAGS} ${BUILD_LDFLAGS} \
+			-I. -I../include -I"${S}"/include \
+			"${S}"/sanei/sanei_config.c "${S}"/sanei/sanei_constrain_value.c \
+			"${S}"/sanei/sanei_init_debug.c "${S}"/tools/sane-desc.c -o sane-desc || die
+		local dirs=( hal hotplug hotplug-ng udev )
+		local targets=(
+			hal/libsane.fdi
+			hotplug/libsane.usermap
+			hotplug-ng/libsane.db
+			udev/libsane.rules
+		)
+		mkdir -p "${dirs[@]}" || die
+		emake "${targets[@]}"
+
+		popd >/dev/null || die
+	fi
+
+	if use usb ; then
+		sed -i -e '/^$/d' \
+			tools/hotplug/libsane.usermap || die
+	fi
+}
+
+multilib_src_install() {
+	emake INSTALL_LOCKPATH="" DESTDIR="${D}" install \
+		docdir="${EPREFIX}"/usr/share/doc/${PF}
+
+	if multilib_is_native_abi ; then
+		if use usb ; then
+			insinto /etc/hotplug/usb
+			doins tools/hotplug/libsane.usermap
+		fi
+
+		udev_newrules tools/udev/libsane.rules 41-libsane.rules
+		insinto "/usr/share/pkgconfig"
+		doins tools/sane-backends.pc
+	fi
+}
+
+multilib_src_install_all() {
+	keepdir /var/lib/lock/sane
+	fowners root:scanner /var/lib/lock/sane
+	fperms g+w /var/lib/lock/sane
+	dodir /etc/env.d
+
+	if use systemd ; then
+		systemd_newunit "${FILESDIR}"/saned_at.service "saned@.service"
+		systemd_newunit "${FILESDIR}"/saned.socket saned.socket
+	fi
+
+	if use usb ; then
+		exeinto /etc/hotplug/usb
+		doexe tools/hotplug/libusbscanner
+		newdoc tools/hotplug/README README.hotplug
+	fi
+
+	dodoc NEWS AUTHORS PROBLEMS README README.linux
+	find "${ED}" -name '*.la' -delete || die
+
+	if use xinetd ; then
+		insinto /etc/xinetd.d
+		doins "${FILESDIR}"/saned
+	fi
+
+	newinitd "${FILESDIR}"/saned.initd saned
+	newconfd "${FILESDIR}"/saned.confd saned
+}
+
+pkg_postinst() {
+	elog "Optional backends:"
+	optfeature "Epson-specific backend" media-gfx/iscan
+	optfeature "HP-specific backend" net-print/hplip
+
+	if use xinetd ; then
+		elog "If you want remote clients to connect, edit"
+		elog "/etc/sane.d/saned.conf and /etc/hosts.allow"
+	fi
+
+	if ! use systemd ; then
+		elog "If you are using a USB scanner, add all users who want"
+		elog "to access your scanner to the \"scanner\" group."
+	fi
+}
diff --git a/profiles/desc/sane_backends.desc b/profiles/desc/sane_backends.desc
index 1572ca4d70c7..b602cf9dd10e 100644
--- a/profiles/desc/sane_backends.desc
+++ b/profiles/desc/sane_backends.desc
@@ -64,6 +64,7 @@ net - SANE_BACKENDS setting for building the net backend
 niash - SANE_BACKENDS setting for building the niash backend
 p5 - SANE_BACKENDS setting for building the p5 backend
 pie - SANE_BACKENDS setting for building the pie backend
+pieusb - SANE_BACKENDS setting for building the pieusb backend
 pixma - SANE_BACKENDS setting for building the pixma backend
 plustek - SANE_BACKENDS setting for building the plustek backend
 plustek_pp - SANE_BACKENDS setting for building the plustek_pp backend