app-editors/emacs: Live ebuilds copied from app-editors/emacs-vcs.

The package split between app-editors/emacs for regular ebuilds and
app-editors/emacs-vcs for live ebuilds has outlived its usefulness,
and it entails additional maintenance effort to keep the two packages
(e.g., the list of their use flags in metadata.xml) synchronised.

Therefore, consolidate all GNU Emacs ebuilds in a single package.
The separate app-editors/emacs-vcs package will be removed soon.

Bug: https://bugs.gentoo.org/291296
Package-Manager: Portage-2.3.81, Repoman-2.3.20
Signed-off-by: Ulrich Müller <ulm@gentoo.org>

3 files changed, 829 insertions, 0 deletions

diff --git a/app-editors/emacs/emacs-26.3.9999.ebuild b/app-editors/emacs/emacs-26.3.9999.ebuild
new file mode 100644
index 000000000000..fee89cd99f71
--- /dev/null
+++ b/app-editors/emacs/emacs-26.3.9999.ebuild
@@ -0,0 +1,408 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit autotools elisp-common flag-o-matic multilib readme.gentoo-r1
+
+if [[ ${PV##*.} = 9999 ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://git.savannah.gnu.org/git/emacs.git"
+	EGIT_BRANCH="emacs-26"
+	EGIT_CHECKOUT_DIR="${WORKDIR}/emacs"
+	S="${EGIT_CHECKOUT_DIR}"
+else
+	SRC_URI="https://dev.gentoo.org/~ulm/distfiles/${P}.tar.xz
+		mirror://gnu-alpha/emacs/pretest/${P}.tar.xz"
+	# FULL_VERSION keeps the full version number, which is needed in
+	# order to determine some path information correctly for copy/move
+	# operations later on
+	FULL_VERSION="${PV%%_*}"
+	S="${WORKDIR}/emacs-${FULL_VERSION}"
+	[[ ${FULL_VERSION} != ${PV} ]] && S="${WORKDIR}/emacs"
+fi
+
+DESCRIPTION="The extensible, customizable, self-documenting real-time display editor"
+HOMEPAGE="https://www.gnu.org/software/emacs/"
+
+LICENSE="GPL-3+ FDL-1.3+ BSD HPND MIT W3C unicode PSF-2"
+SLOT="26-vcs"
+IUSE="acl alsa aqua athena cairo dbus dynamic-loading games gconf gfile gif gpm gsettings gtk gtk2 gzip-el imagemagick +inotify jpeg kerberos lcms libxml2 livecd m17n-lib mailutils motif png selinux sound source ssl svg systemd +threads tiff toolkit-scroll-bars wide-int X Xaw3d xft +xpm xwidgets zlib"
+REQUIRED_USE="?? ( aqua X )"
+
+RDEPEND="sys-libs/ncurses:0=
+	>=app-eselect/eselect-emacs-1.16
+	>=app-emacs/emacs-common-gentoo-1.5[games?,X?]
+	acl? ( virtual/acl )
+	alsa? ( media-libs/alsa-lib )
+	dbus? ( sys-apps/dbus )
+	games? ( acct-group/gamestat )
+	gpm? ( sys-libs/gpm )
+	!inotify? ( gfile? ( >=dev-libs/glib-2.28.6 ) )
+	kerberos? ( virtual/krb5 )
+	lcms? ( media-libs/lcms:2 )
+	libxml2? ( >=dev-libs/libxml2-2.2.0 )
+	mailutils? ( net-mail/mailutils[clients] )
+	!mailutils? ( net-libs/liblockfile )
+	selinux? ( sys-libs/libselinux )
+	ssl? ( net-libs/gnutls:0= )
+	systemd? ( sys-apps/systemd )
+	zlib? ( sys-libs/zlib )
+	X? (
+		x11-libs/libICE
+		x11-libs/libSM
+		x11-libs/libX11
+		x11-libs/libXext
+		x11-libs/libXfixes
+		x11-libs/libXinerama
+		x11-libs/libXrandr
+		x11-libs/libxcb
+		x11-misc/xbitmaps
+		gconf? ( >=gnome-base/gconf-2.26.2 )
+		gsettings? ( >=dev-libs/glib-2.28.6 )
+		gif? ( media-libs/giflib:0= )
+		jpeg? ( virtual/jpeg:0= )
+		png? ( >=media-libs/libpng-1.4:0= )
+		svg? ( >=gnome-base/librsvg-2.0 )
+		tiff? ( media-libs/tiff:0 )
+		xpm? ( x11-libs/libXpm )
+		imagemagick? ( >=media-gfx/imagemagick-6.6.2:0= )
+		xft? (
+			media-libs/fontconfig
+			media-libs/freetype
+			x11-libs/libXft
+			x11-libs/libXrender
+			cairo? ( >=x11-libs/cairo-1.12.18 )
+			m17n-lib? (
+				>=dev-libs/libotf-0.9.4
+				>=dev-libs/m17n-lib-1.5.1
+			)
+		)
+		gtk? (
+			gtk2? ( x11-libs/gtk+:2 )
+			!gtk2? (
+				x11-libs/gtk+:3
+				xwidgets? (
+					net-libs/webkit-gtk:4=
+					x11-libs/libXcomposite
+				)
+			)
+		)
+		!gtk? (
+			motif? (
+				>=x11-libs/motif-2.3:0
+				x11-libs/libXpm
+				x11-libs/libXmu
+				x11-libs/libXt
+			)
+			!motif? (
+				Xaw3d? (
+					x11-libs/libXaw3d
+					x11-libs/libXmu
+					x11-libs/libXt
+				)
+				!Xaw3d? ( athena? (
+					x11-libs/libXaw
+					x11-libs/libXmu
+					x11-libs/libXt
+				) )
+			)
+		)
+	)"
+
+DEPEND="${RDEPEND}
+	X? ( x11-base/xorg-proto )"
+
+BDEPEND="virtual/pkgconfig
+	gzip-el? ( app-arch/gzip )"
+
+if [[ ${PV##*.} = 9999 ]]; then
+	BDEPEND="${BDEPEND}
+	sys-apps/texinfo"
+fi
+
+RDEPEND="${RDEPEND}
+	!app-editors/emacs-vcs:26"
+
+EMACS_SUFFIX="emacs-${SLOT}"
+SITEFILE="20${EMACS_SUFFIX}-gentoo.el"
+
+src_prepare() {
+	if [[ ${PV##*.} = 9999 ]]; then
+		FULL_VERSION=$(sed -n 's/^AC_INIT([^,]*,[ \t]*\([^ \t,)]*\).*/\1/p' \
+			configure.ac)
+		[[ ${FULL_VERSION} ]] || die "Cannot determine current Emacs version"
+		einfo "Emacs branch: ${EGIT_BRANCH}"
+		einfo "Commit: ${EGIT_VERSION}"
+		einfo "Emacs version number: ${FULL_VERSION}"
+		[[ ${FULL_VERSION} =~ ^${PV%.*}(\..*)?$ ]] \
+			|| die "Upstream version number changed to ${FULL_VERSION}"
+	fi
+
+	eapply_user
+
+	# Fix filename reference in redirected man page
+	sed -i -e "/^\\.so/s/etags/&-${EMACS_SUFFIX}/" doc/man/ctags.1 || die
+
+	AT_M4DIR=m4 eautoreconf
+}
+
+src_configure() {
+	strip-flags
+	filter-flags -pie					#526948
+
+	if use sh; then
+		replace-flags "-O[1-9]" -O0		#262359
+	elif use ia64; then
+		replace-flags "-O[2-9]" -O1		#325373
+	else
+		replace-flags "-O[3-9]" -O2
+	fi
+
+	local myconf
+
+	if use alsa; then
+		use sound || ewarn \
+			"USE flag \"alsa\" overrides \"-sound\"; enabling sound support."
+		myconf+=" --with-sound=alsa"
+	else
+		myconf+=" --with-sound=$(usex sound oss)"
+	fi
+
+	if use X; then
+		myconf+=" --with-x --without-ns"
+		myconf+=" $(use_with gconf)"
+		myconf+=" $(use_with gsettings)"
+		myconf+=" $(use_with toolkit-scroll-bars)"
+		myconf+=" $(use_with gif)"
+		myconf+=" $(use_with jpeg)"
+		myconf+=" $(use_with png)"
+		myconf+=" $(use_with svg rsvg)"
+		myconf+=" $(use_with tiff)"
+		myconf+=" $(use_with xpm)"
+		myconf+=" $(use_with imagemagick)"
+
+		if use xft; then
+			myconf+=" --with-xft"
+			myconf+=" $(use_with cairo)"
+			myconf+=" $(use_with m17n-lib libotf)"
+			myconf+=" $(use_with m17n-lib m17n-flt)"
+		else
+			myconf+=" --without-xft"
+			myconf+=" --without-cairo"
+			myconf+=" --without-libotf --without-m17n-flt"
+			use cairo && ewarn \
+				"USE flag \"cairo\" has no effect if \"xft\" is not set."
+			use m17n-lib && ewarn \
+				"USE flag \"m17n-lib\" has no effect if \"xft\" is not set."
+		fi
+
+		local f line
+		if use gtk; then
+			einfo "Configuring to build with GIMP Toolkit (GTK+)"
+			while read line; do ewarn "${line}"; done <<-EOF
+				Your version of GTK+ will have problems with closing open
+				displays. This is no problem if you just use one display, but
+				if you use more than one and close one of them Emacs may crash.
+				See <https://bugzilla.gnome.org/show_bug.cgi?id=85715>.
+				If you intend to use more than one display, then it is strongly
+				recommended that you compile Emacs with the Athena/Lucid or the
+				Motif toolkit instead.
+			EOF
+			if use gtk2; then
+				myconf+=" --with-x-toolkit=gtk2 --without-xwidgets"
+				use xwidgets && ewarn \
+					"USE flag \"xwidgets\" has no effect if \"gtk2\" is set."
+			else
+				myconf+=" --with-x-toolkit=gtk3 $(use_with xwidgets)"
+			fi
+			for f in motif Xaw3d athena; do
+				use ${f} && ewarn \
+					"USE flag \"${f}\" has no effect if \"gtk\" is set."
+			done
+		elif use motif; then
+			einfo "Configuring to build with Motif toolkit"
+			myconf+=" --with-x-toolkit=motif"
+			for f in Xaw3d athena; do
+				use ${f} && ewarn \
+					"USE flag \"${f}\" has no effect if \"motif\" is set."
+			done
+		elif use athena || use Xaw3d; then
+			einfo "Configuring to build with Athena/Lucid toolkit"
+			myconf+=" --with-x-toolkit=lucid $(use_with Xaw3d xaw3d)"
+		else
+			einfo "Configuring to build with no toolkit"
+			myconf+=" --with-x-toolkit=no"
+		fi
+		if ! use gtk; then
+			use gtk2 && ewarn \
+				"USE flag \"gtk2\" has no effect if \"gtk\" is not set."
+			use xwidgets && ewarn \
+				"USE flag \"xwidgets\" has no effect if \"gtk\" is not set."
+		fi
+	elif use aqua; then
+		einfo "Configuring to build with Nextstep (Cocoa) support"
+		myconf+=" --with-ns --disable-ns-self-contained"
+		myconf+=" --without-x"
+	else
+		myconf+=" --without-x --without-ns"
+	fi
+
+	econf \
+		--program-suffix="-${EMACS_SUFFIX}" \
+		--includedir="${EPREFIX}"/usr/include/${EMACS_SUFFIX} \
+		--infodir="${EPREFIX}"/usr/share/info/${EMACS_SUFFIX} \
+		--localstatedir="${EPREFIX}"/var \
+		--enable-locallisppath="${EPREFIX}/etc/emacs:${EPREFIX}${SITELISP}" \
+		--without-compress-install \
+		--without-hesiod \
+		--without-pop \
+		--with-file-notification=$(usev inotify || usev gfile || echo no) \
+		$(use_enable acl) \
+		$(use_with dbus) \
+		$(use_with dynamic-loading modules) \
+		$(use_with games gameuser ":gamestat") \
+		$(use_with gpm) \
+		$(use_with kerberos) $(use_with kerberos kerberos5) \
+		$(use_with lcms lcms2) \
+		$(use_with libxml2 xml2) \
+		$(use_with mailutils) \
+		$(use_with selinux) \
+		$(use_with ssl gnutls) \
+		$(use_with systemd libsystemd) \
+		$(use_with threads) \
+		$(use_with wide-int) \
+		$(use_with zlib) \
+		${myconf}
+}
+
+src_compile() {
+	# Disable sandbox when dumping. For the unbelievers, see bug #131505
+	emake RUN_TEMACS="SANDBOX_ON=0 LD_PRELOAD= env ./temacs"
+}
+
+src_install () {
+	emake DESTDIR="${D}" NO_BIN_LINK=t install
+
+	mv "${ED}"/usr/bin/{emacs-${FULL_VERSION}-,}${EMACS_SUFFIX} || die
+	mv "${ED}"/usr/share/man/man1/{emacs-,}${EMACS_SUFFIX}.1 || die
+	mv "${ED}"/usr/share/metainfo/{emacs-,}${EMACS_SUFFIX}.appdata.xml || die
+
+	# move info dir to avoid collisions with the dir file generated by portage
+	mv "${ED}"/usr/share/info/${EMACS_SUFFIX}/dir{,.orig} || die
+	touch "${ED}"/usr/share/info/${EMACS_SUFFIX}/.keepinfodir
+	docompress -x /usr/share/info/${EMACS_SUFFIX}/dir.orig
+
+	# avoid collision between slots, see bug #169033 e.g.
+	rm "${ED}"/usr/share/emacs/site-lisp/subdirs.el
+	rm -rf "${ED}"/usr/share/{appdata,applications,icons}
+	rm -rf "${ED}/usr/$(get_libdir)"
+	rm -rf "${ED}"/var
+
+	# remove unused <version>/site-lisp dir
+	rm -rf "${ED}"/usr/share/emacs/${FULL_VERSION}/site-lisp
+
+	# remove COPYING file (except for etc/COPYING used by describe-copying)
+	rm "${ED}"/usr/share/emacs/${FULL_VERSION}/lisp/COPYING
+
+	if use systemd; then
+		insinto /usr/lib/systemd/user
+		sed -e "/^##/d" \
+			-e "/^ExecStart/s,emacs,${EPREFIX}/usr/bin/${EMACS_SUFFIX}," \
+			-e "/^ExecStop/s,emacsclient,${EPREFIX}/usr/bin/&-${EMACS_SUFFIX}," \
+			etc/emacs.service | newins - ${EMACS_SUFFIX}.service
+		assert
+	fi
+
+	if use gzip-el; then
+		# compress .el files when a corresponding .elc exists
+		find "${ED}"/usr/share/emacs/${FULL_VERSION}/lisp -type f \
+			-name "*.elc" -print | sed 's/\.elc$/.el/' | xargs gzip -9n
+		assert "gzip .el failed"
+	fi
+
+	local cdir
+	if use source; then
+		cdir="/usr/share/emacs/${FULL_VERSION}/src"
+		insinto "${cdir}"
+		# This is not meant to install all the source -- just the
+		# C source you might find via find-function
+		doins src/*.{c,h,m}
+	elif has installsources ${FEATURES}; then
+		cdir="/usr/src/debug/${CATEGORY}/${PF}/${S#"${WORKDIR}/"}/src"
+	fi
+
+	sed -e "${cdir:+#}/^Y/d" -e "s/^[XY]//" >"${T}/${SITEFILE}" <<-EOF || die
+	X
+	;;; ${EMACS_SUFFIX} site-lisp configuration
+	X
+	(when (string-match "\\\\\`${FULL_VERSION//./\\\\.}\\\\>" emacs-version)
+	Y  (setq find-function-C-source-directory
+	Y	"${EPREFIX}${cdir}")
+	X  (let ((path (getenv "INFOPATH"))
+	X	(dir "${EPREFIX}/usr/share/info/${EMACS_SUFFIX}")
+	X	(re "\\\\\`${EPREFIX}/usr/share\\\\>"))
+	X    (and path
+	X	 ;; move Emacs Info dir before anything else in /usr/share
+	X	 (let* ((p (cons nil (split-string path ":" t))) (q p))
+	X	   (while (and (cdr q) (not (string-match re (cadr q))))
+	X	     (setq q (cdr q)))
+	X	   (setcdr q (cons dir (delete dir (cdr q))))
+	X	   (setq Info-directory-list (prune-directory-list (cdr p)))))))
+	EOF
+	elisp-site-file-install "${T}/${SITEFILE}" || die
+
+	dodoc README BUGS CONTRIBUTE
+
+	if use aqua; then
+		dodir /Applications/Gentoo
+		rm -rf "${ED}"/Applications/Gentoo/${EMACS_SUFFIX^}.app
+		mv nextstep/Emacs.app \
+			"${ED}"/Applications/Gentoo/${EMACS_SUFFIX^}.app || die
+	fi
+
+	DOC_CONTENTS="You can set the version to be started by /usr/bin/emacs
+		through the Emacs eselect module, which also redirects man and info
+		pages. Therefore, several Emacs versions can be installed at the
+		same time. \"man emacs.eselect\" for details.
+		\\n\\nIf you upgrade from Emacs version 24.2 or earlier, then it is
+		strongly recommended that you use app-admin/emacs-updater to rebuild
+		all byte-compiled elisp files of the installed Emacs packages."
+	use X && DOC_CONTENTS+="\\n\\nYou need to install some fonts for Emacs.
+		Installing media-fonts/font-adobe-{75,100}dpi on the X server's
+		machine would satisfy basic Emacs requirements under X11.
+		See also https://wiki.gentoo.org/wiki/Xft_support_for_GNU_Emacs
+		for how to enable anti-aliased fonts."
+	use aqua && DOC_CONTENTS+="\\n\\n${EMACS_SUFFIX^}.app is in
+		\"${EPREFIX}/Applications/Gentoo\". You may want to copy or symlink
+		it into /Applications by yourself."
+	readme.gentoo_create_doc
+}
+
+pkg_preinst() {
+	# move Info dir file to correct name
+	if [[ -d ${ED}/usr/share/info ]]; then
+		mv "${ED}"/usr/share/info/${EMACS_SUFFIX}/dir{.orig,} || die
+	fi
+}
+
+pkg_postinst() {
+	elisp-site-regen
+	readme.gentoo_print_elog
+
+	if use livecd; then
+		# force an update of the emacs symlink for the livecd/dvd,
+		# because some microemacs packages set it with USE=livecd
+		eselect emacs update
+	elif [[ $(readlink "${EROOT}"/usr/bin/emacs) = ${EMACS_SUFFIX} ]]; then
+		# refresh symlinks in case any installed files have changed
+		eselect emacs set ${EMACS_SUFFIX}
+	else
+		eselect emacs update ifunset
+	fi
+}
+
+pkg_postrm() {
+	elisp-site-regen
+	eselect emacs update ifunset
+}
diff --git a/app-editors/emacs/emacs-27.0.9999.ebuild b/app-editors/emacs/emacs-27.0.9999.ebuild
new file mode 100644
index 000000000000..c46195dfd43c
--- /dev/null
+++ b/app-editors/emacs/emacs-27.0.9999.ebuild
@@ -0,0 +1,416 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit autotools elisp-common flag-o-matic multilib readme.gentoo-r1
+
+if [[ ${PV##*.} = 9999 ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://git.savannah.gnu.org/git/emacs.git"
+	EGIT_BRANCH="master"
+	EGIT_CHECKOUT_DIR="${WORKDIR}/emacs"
+	S="${EGIT_CHECKOUT_DIR}"
+else
+	SRC_URI="https://dev.gentoo.org/~ulm/distfiles/${P}.tar.xz
+		mirror://gnu-alpha/emacs/pretest/${P}.tar.xz"
+	# FULL_VERSION keeps the full version number, which is needed in
+	# order to determine some path information correctly for copy/move
+	# operations later on
+	FULL_VERSION="${PV%%_*}"
+	S="${WORKDIR}/emacs-${FULL_VERSION}"
+	[[ ${FULL_VERSION} != ${PV} ]] && S="${WORKDIR}/emacs"
+fi
+
+DESCRIPTION="The extensible, customizable, self-documenting real-time display editor"
+HOMEPAGE="https://www.gnu.org/software/emacs/"
+
+LICENSE="GPL-3+ FDL-1.3+ BSD HPND MIT W3C unicode PSF-2"
+SLOT="27-vcs"
+IUSE="acl alsa aqua athena cairo dbus dynamic-loading games gconf gfile gif +gmp gpm gsettings gtk gtk2 gzip-el harfbuzz imagemagick +inotify jpeg json kerberos lcms libxml2 livecd m17n-lib mailutils motif png selinux sound source ssl svg systemd +threads tiff toolkit-scroll-bars wide-int X Xaw3d xft +xpm xwidgets zlib"
+REQUIRED_USE="?? ( aqua X )"
+RESTRICT="test"
+
+RDEPEND="sys-libs/ncurses:0=
+	>=app-eselect/eselect-emacs-1.16
+	>=app-emacs/emacs-common-gentoo-1.5[games?,X?]
+	acl? ( virtual/acl )
+	alsa? ( media-libs/alsa-lib )
+	dbus? ( sys-apps/dbus )
+	games? ( acct-group/gamestat )
+	gmp? ( dev-libs/gmp:0= )
+	gpm? ( sys-libs/gpm )
+	!inotify? ( gfile? ( >=dev-libs/glib-2.28.6 ) )
+	json? ( dev-libs/jansson )
+	kerberos? ( virtual/krb5 )
+	lcms? ( media-libs/lcms:2 )
+	libxml2? ( >=dev-libs/libxml2-2.2.0 )
+	mailutils? ( net-mail/mailutils[clients] )
+	!mailutils? ( net-libs/liblockfile )
+	selinux? ( sys-libs/libselinux )
+	ssl? ( net-libs/gnutls:0= )
+	systemd? ( sys-apps/systemd )
+	zlib? ( sys-libs/zlib )
+	X? (
+		x11-libs/libICE
+		x11-libs/libSM
+		x11-libs/libX11
+		x11-libs/libXext
+		x11-libs/libXfixes
+		x11-libs/libXinerama
+		x11-libs/libXrandr
+		x11-libs/libxcb
+		x11-misc/xbitmaps
+		gconf? ( >=gnome-base/gconf-2.26.2 )
+		gsettings? ( >=dev-libs/glib-2.28.6 )
+		gif? ( media-libs/giflib:0= )
+		jpeg? ( virtual/jpeg:0= )
+		png? ( >=media-libs/libpng-1.4:0= )
+		svg? ( >=gnome-base/librsvg-2.0 )
+		tiff? ( media-libs/tiff:0 )
+		xpm? ( x11-libs/libXpm )
+		imagemagick? ( >=media-gfx/imagemagick-6.6.2:0= )
+		xft? (
+			media-libs/fontconfig
+			media-libs/freetype
+			x11-libs/libXft
+			x11-libs/libXrender
+			cairo? ( >=x11-libs/cairo-1.12.18 )
+			harfbuzz? ( media-libs/harfbuzz:0= )
+			m17n-lib? (
+				>=dev-libs/libotf-0.9.4
+				>=dev-libs/m17n-lib-1.5.1
+			)
+		)
+		gtk? (
+			gtk2? ( x11-libs/gtk+:2 )
+			!gtk2? (
+				x11-libs/gtk+:3
+				xwidgets? (
+					net-libs/webkit-gtk:4=
+					x11-libs/libXcomposite
+				)
+			)
+		)
+		!gtk? (
+			motif? (
+				>=x11-libs/motif-2.3:0
+				x11-libs/libXpm
+				x11-libs/libXmu
+				x11-libs/libXt
+			)
+			!motif? (
+				Xaw3d? (
+					x11-libs/libXaw3d
+					x11-libs/libXmu
+					x11-libs/libXt
+				)
+				!Xaw3d? ( athena? (
+					x11-libs/libXaw
+					x11-libs/libXmu
+					x11-libs/libXt
+				) )
+			)
+		)
+	)"
+
+DEPEND="${RDEPEND}
+	X? ( x11-base/xorg-proto )"
+
+BDEPEND="virtual/pkgconfig
+	gzip-el? ( app-arch/gzip )"
+
+if [[ ${PV##*.} = 9999 ]]; then
+	BDEPEND="${BDEPEND}
+	sys-apps/texinfo"
+fi
+
+RDEPEND="${RDEPEND}
+	!app-editors/emacs-vcs:27"
+
+EMACS_SUFFIX="emacs-${SLOT}"
+SITEFILE="20${EMACS_SUFFIX}-gentoo.el"
+
+src_prepare() {
+	if [[ ${PV##*.} = 9999 ]]; then
+		FULL_VERSION=$(sed -n 's/^AC_INIT([^,]*,[ \t]*\([^ \t,)]*\).*/\1/p' \
+			configure.ac)
+		[[ ${FULL_VERSION} ]] || die "Cannot determine current Emacs version"
+		einfo "Emacs branch: ${EGIT_BRANCH}"
+		einfo "Commit: ${EGIT_VERSION}"
+		einfo "Emacs version number: ${FULL_VERSION}"
+		[[ ${FULL_VERSION} =~ ^${PV%.*}(\..*)?$ ]] \
+			|| die "Upstream version number changed to ${FULL_VERSION}"
+	fi
+
+	eapply_user
+
+	# Fix filename reference in redirected man page
+	sed -i -e "/^\\.so/s/etags/&-${EMACS_SUFFIX}/" doc/man/ctags.1 || die
+
+	AT_M4DIR=m4 eautoreconf
+}
+
+src_configure() {
+	strip-flags
+	filter-flags -pie					#526948
+
+	if use sh; then
+		replace-flags "-O[1-9]" -O0		#262359
+	elif use ia64; then
+		replace-flags "-O[2-9]" -O1		#325373
+	else
+		replace-flags "-O[3-9]" -O2
+	fi
+
+	local myconf
+
+	if use alsa; then
+		use sound || ewarn \
+			"USE flag \"alsa\" overrides \"-sound\"; enabling sound support."
+		myconf+=" --with-sound=alsa"
+	else
+		myconf+=" --with-sound=$(usex sound oss)"
+	fi
+
+	if use X; then
+		myconf+=" --with-x --without-ns"
+		myconf+=" $(use_with gconf)"
+		myconf+=" $(use_with gsettings)"
+		myconf+=" $(use_with toolkit-scroll-bars)"
+		myconf+=" $(use_with gif)"
+		myconf+=" $(use_with jpeg)"
+		myconf+=" $(use_with png)"
+		myconf+=" $(use_with svg rsvg)"
+		myconf+=" $(use_with tiff)"
+		myconf+=" $(use_with xpm)"
+		myconf+=" $(use_with imagemagick)"
+
+		if use xft; then
+			myconf+=" --with-xft"
+			myconf+=" $(use_with cairo)"
+			myconf+=" $(use_with harfbuzz)"
+			myconf+=" $(use_with m17n-lib libotf)"
+			myconf+=" $(use_with m17n-lib m17n-flt)"
+		else
+			myconf+=" --without-xft"
+			myconf+=" --without-cairo"
+			myconf+=" --without-libotf --without-m17n-flt"
+			use cairo && ewarn \
+				"USE flag \"cairo\" has no effect if \"xft\" is not set."
+			use m17n-lib && ewarn \
+				"USE flag \"m17n-lib\" has no effect if \"xft\" is not set."
+		fi
+
+		local f line
+		if use gtk; then
+			einfo "Configuring to build with GIMP Toolkit (GTK+)"
+			while read line; do ewarn "${line}"; done <<-EOF
+				Your version of GTK+ will have problems with closing open
+				displays. This is no problem if you just use one display, but
+				if you use more than one and close one of them Emacs may crash.
+				See <https://bugzilla.gnome.org/show_bug.cgi?id=85715>.
+				If you intend to use more than one display, then it is strongly
+				recommended that you compile Emacs with the Athena/Lucid or the
+				Motif toolkit instead.
+			EOF
+			if use gtk2; then
+				myconf+=" --with-x-toolkit=gtk2 --without-xwidgets"
+				use xwidgets && ewarn \
+					"USE flag \"xwidgets\" has no effect if \"gtk2\" is set."
+			else
+				myconf+=" --with-x-toolkit=gtk3 $(use_with xwidgets)"
+			fi
+			for f in motif Xaw3d athena; do
+				use ${f} && ewarn \
+					"USE flag \"${f}\" has no effect if \"gtk\" is set."
+			done
+		elif use motif; then
+			einfo "Configuring to build with Motif toolkit"
+			myconf+=" --with-x-toolkit=motif"
+			for f in Xaw3d athena; do
+				use ${f} && ewarn \
+					"USE flag \"${f}\" has no effect if \"motif\" is set."
+			done
+		elif use athena || use Xaw3d; then
+			einfo "Configuring to build with Athena/Lucid toolkit"
+			myconf+=" --with-x-toolkit=lucid $(use_with Xaw3d xaw3d)"
+		else
+			einfo "Configuring to build with no toolkit"
+			myconf+=" --with-x-toolkit=no"
+		fi
+		if ! use gtk; then
+			use gtk2 && ewarn \
+				"USE flag \"gtk2\" has no effect if \"gtk\" is not set."
+			use xwidgets && ewarn \
+				"USE flag \"xwidgets\" has no effect if \"gtk\" is not set."
+		fi
+	elif use aqua; then
+		einfo "Configuring to build with Nextstep (Cocoa) support"
+		myconf+=" --with-ns --disable-ns-self-contained"
+		myconf+=" --without-x"
+	else
+		myconf+=" --without-x --without-ns"
+	fi
+
+	econf \
+		--program-suffix="-${EMACS_SUFFIX}" \
+		--includedir="${EPREFIX}"/usr/include/${EMACS_SUFFIX} \
+		--infodir="${EPREFIX}"/usr/share/info/${EMACS_SUFFIX} \
+		--localstatedir="${EPREFIX}"/var \
+		--enable-locallisppath="${EPREFIX}/etc/emacs:${EPREFIX}${SITELISP}" \
+		--without-compress-install \
+		--without-hesiod \
+		--without-pop \
+		--with-dumping=pdumper \
+		--with-file-notification=$(usev inotify || usev gfile || echo no) \
+		$(use_enable acl) \
+		$(use_with dbus) \
+		$(use_with dynamic-loading modules) \
+		$(use_with games gameuser ":gamestat") \
+		$(use_with gmp libgmp) \
+		$(use_with gpm) \
+		$(use_with json) \
+		$(use_with kerberos) $(use_with kerberos kerberos5) \
+		$(use_with lcms lcms2) \
+		$(use_with libxml2 xml2) \
+		$(use_with mailutils) \
+		$(use_with selinux) \
+		$(use_with ssl gnutls) \
+		$(use_with systemd libsystemd) \
+		$(use_with threads) \
+		$(use_with wide-int) \
+		$(use_with zlib) \
+		${myconf}
+}
+
+#src_compile() {
+#	# Disable sandbox when dumping. For the unbelievers, see bug #131505
+#	emake RUN_TEMACS="SANDBOX_ON=0 LD_PRELOAD= env ./temacs"
+#}
+
+src_install () {
+	emake DESTDIR="${D}" NO_BIN_LINK=t install
+
+	mv "${ED}"/usr/bin/{emacs-${FULL_VERSION}-,}${EMACS_SUFFIX} || die
+	mv "${ED}"/usr/share/man/man1/{emacs-,}${EMACS_SUFFIX}.1 || die
+	mv "${ED}"/usr/share/metainfo/{emacs-,}${EMACS_SUFFIX}.appdata.xml || die
+
+	# move info dir to avoid collisions with the dir file generated by portage
+	mv "${ED}"/usr/share/info/${EMACS_SUFFIX}/dir{,.orig} || die
+	touch "${ED}"/usr/share/info/${EMACS_SUFFIX}/.keepinfodir
+	docompress -x /usr/share/info/${EMACS_SUFFIX}/dir.orig
+
+	# avoid collision between slots, see bug #169033 e.g.
+	rm "${ED}"/usr/share/emacs/site-lisp/subdirs.el
+	rm -rf "${ED}"/usr/share/{appdata,applications,icons}
+	rm -rf "${ED}/usr/$(get_libdir)"
+	rm -rf "${ED}"/var
+
+	# remove unused <version>/site-lisp dir
+	rm -rf "${ED}"/usr/share/emacs/${FULL_VERSION}/site-lisp
+
+	# remove COPYING file (except for etc/COPYING used by describe-copying)
+	rm "${ED}"/usr/share/emacs/${FULL_VERSION}/lisp/COPYING
+
+	if use systemd; then
+		insinto /usr/lib/systemd/user
+		sed -e "/^##/d" \
+			-e "/^ExecStart/s,emacs,${EPREFIX}/usr/bin/${EMACS_SUFFIX}," \
+			-e "/^ExecStop/s,emacsclient,${EPREFIX}/usr/bin/&-${EMACS_SUFFIX}," \
+			etc/emacs.service | newins - ${EMACS_SUFFIX}.service
+		assert
+	fi
+
+	if use gzip-el; then
+		# compress .el files when a corresponding .elc exists
+		find "${ED}"/usr/share/emacs/${FULL_VERSION}/lisp -type f \
+			-name "*.elc" -print | sed 's/\.elc$/.el/' | xargs gzip -9n
+		assert "gzip .el failed"
+	fi
+
+	local cdir
+	if use source; then
+		cdir="/usr/share/emacs/${FULL_VERSION}/src"
+		insinto "${cdir}"
+		# This is not meant to install all the source -- just the
+		# C source you might find via find-function
+		doins src/*.{c,h,m}
+	elif has installsources ${FEATURES}; then
+		cdir="/usr/src/debug/${CATEGORY}/${PF}/${S#"${WORKDIR}/"}/src"
+	fi
+
+	sed -e "${cdir:+#}/^Y/d" -e "s/^[XY]//" >"${T}/${SITEFILE}" <<-EOF || die
+	X
+	;;; ${EMACS_SUFFIX} site-lisp configuration
+	X
+	(when (string-match "\\\\\`${FULL_VERSION//./\\\\.}\\\\>" emacs-version)
+	Y  (setq find-function-C-source-directory
+	Y	"${EPREFIX}${cdir}")
+	X  (let ((path (getenv "INFOPATH"))
+	X	(dir "${EPREFIX}/usr/share/info/${EMACS_SUFFIX}")
+	X	(re "\\\\\`${EPREFIX}/usr/share\\\\>"))
+	X    (and path
+	X	 ;; move Emacs Info dir before anything else in /usr/share
+	X	 (let* ((p (cons nil (split-string path ":" t))) (q p))
+	X	   (while (and (cdr q) (not (string-match re (cadr q))))
+	X	     (setq q (cdr q)))
+	X	   (setcdr q (cons dir (delete dir (cdr q))))
+	X	   (setq Info-directory-list (prune-directory-list (cdr p)))))))
+	EOF
+	elisp-site-file-install "${T}/${SITEFILE}" || die
+
+	dodoc README BUGS CONTRIBUTE
+
+	if use aqua; then
+		dodir /Applications/Gentoo
+		rm -rf "${ED}"/Applications/Gentoo/${EMACS_SUFFIX^}.app
+		mv nextstep/Emacs.app \
+			"${ED}"/Applications/Gentoo/${EMACS_SUFFIX^}.app || die
+	fi
+
+	DOC_CONTENTS="You can set the version to be started by /usr/bin/emacs
+		through the Emacs eselect module, which also redirects man and info
+		pages. Therefore, several Emacs versions can be installed at the
+		same time. \"man emacs.eselect\" for details.
+		\\n\\nIf you upgrade from Emacs version 24.2 or earlier, then it is
+		strongly recommended that you use app-admin/emacs-updater to rebuild
+		all byte-compiled elisp files of the installed Emacs packages."
+	use X && DOC_CONTENTS+="\\n\\nYou need to install some fonts for Emacs.
+		Installing media-fonts/font-adobe-{75,100}dpi on the X server's
+		machine would satisfy basic Emacs requirements under X11.
+		See also https://wiki.gentoo.org/wiki/Xft_support_for_GNU_Emacs
+		for how to enable anti-aliased fonts."
+	use aqua && DOC_CONTENTS+="\\n\\n${EMACS_SUFFIX^}.app is in
+		\"${EPREFIX}/Applications/Gentoo\". You may want to copy or symlink
+		it into /Applications by yourself."
+	readme.gentoo_create_doc
+}
+
+pkg_preinst() {
+	# move Info dir file to correct name
+	if [[ -d ${ED}/usr/share/info ]]; then
+		mv "${ED}"/usr/share/info/${EMACS_SUFFIX}/dir{.orig,} || die
+	fi
+}
+
+pkg_postinst() {
+	elisp-site-regen
+	readme.gentoo_print_elog
+
+	if use livecd; then
+		# force an update of the emacs symlink for the livecd/dvd,
+		# because some microemacs packages set it with USE=livecd
+		eselect emacs update
+	elif [[ $(readlink "${EROOT}"/usr/bin/emacs) = ${EMACS_SUFFIX} ]]; then
+		# refresh symlinks in case any installed files have changed
+		eselect emacs set ${EMACS_SUFFIX}
+	else
+		eselect emacs update ifunset
+	fi
+}
+
+pkg_postrm() {
+	elisp-site-regen
+	eselect emacs update ifunset
+}
diff --git a/app-editors/emacs/metadata.xml b/app-editors/emacs/metadata.xml
index 7af9ff05554c..0ae048b21bd4 100644
--- a/app-editors/emacs/metadata.xml
+++ b/app-editors/emacs/metadata.xml
@@ -34,14 +34,19 @@
   <flag name="gtk2">Prefer version 2 of the GIMP Toolkit to version 3
     (<pkg>x11-libs/gtk+</pkg>)</flag>
   <flag name="gzip-el">Compress bundled Emacs Lisp source</flag>
+  <flag name="harfbuzz">Use <pkg>media-libs/harfbuzz</pkg> as text shaping
+    engine</flag>
   <flag name="imagemagick">Use <pkg>media-gfx/imagemagick</pkg> for image
     processing</flag>
+  <flag name="json">Compile with native JSON support using
+    <pkg>dev-libs/jansson</pkg></flag>
   <flag name="libxml2">Use <pkg>dev-libs/libxml2</pkg> to parse XML instead
     of the internal Lisp implementations</flag>
   <flag name="mailutils">Retrieve e-mail using <pkg>net-mail/mailutils</pkg>
     instead of the internal movemail substitute</flag>
   <flag name="source">Install C source files and make them available for
     find-function</flag>
+  <flag name="threads">Add elisp threading support</flag>
   <flag name="toolkit-scroll-bars">Use the selected toolkit's scrollbars in
     preference to Emacs' own scrollbars</flag>
   <flag name="wide-int">Prefer wide Emacs integers (typically 62-bit).