[gentoo-commits] repo/gentoo:master commit in: sys-libs/ncurses/

[Sam James]

commit:     345696eea0fbeb96946f1c1ae7293150c2c7e8ad
Author:     Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Fri Sep  9 06:09:41 2022 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Fri Sep  9 11:18:53 2022 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=345696ee

sys-libs/ncurses: add 6.3_p20220903, use -D_XOPEN_SOURCE=600 on musl (fix ncursesw usage)

Before, `pkg-config --cflags ncurses` would not include -D_XOPEN_SOURCE=600
and then various unicode/wide definitions would not be exposed.

Closes: https://bugs.gentoo.org/869128
Signed-off-by: Sam James <sam <AT> gentoo.org>

 sys-libs/ncurses/Manifest                        |   3 +
 sys-libs/ncurses/ncurses-6.3_p20220903-r1.ebuild | 437 +++++++++++++++++++++++
 sys-libs/ncurses/ncurses-6.3_p20220903.ebuild    | 435 ++++++++++++++++++++++
 3 files changed, 875 insertions(+)

diff --git a/sys-libs/ncurses/Manifest b/sys-libs/ncurses/Manifest
index 908c92313ee3..6f1cdb953a38 100644
--- a/sys-libs/ncurses/Manifest
+++ b/sys-libs/ncurses/Manifest
@@ -90,5 +90,8 @@ DIST ncurses-6.3-20220820.patch.gz 32018 BLAKE2B 14a29ee43c4d8df82a9f939ef4e028a
 DIST ncurses-6.3-20220820.patch.gz.asc 729 BLAKE2B 93179103d5465b5ddff8513a383099bbf07993a1286a164b69d213c176cc39144fc8afb407fbbb2596d975bd7017b677f75609fe8ddaa3415f46cc73c5bdcbe3 SHA512 5e589d29903a2c6c1e85dfb64d7267e3528d65e49a7c4851318139142524bed4824dd787f980b2fbe8327f0b804ecea1ca94bbb6c7615fee9d993ea6d1568773
 DIST ncurses-6.3-20220827.patch.gz 3794 BLAKE2B 2acc58c118af92413189b01d0a9e4d2d3f211921eadbbb3df775d5b64f387d860ddca58ddd2f6ae4ffc04932a5924d03f20ba945eb89a5a1f91382ed0ef0f65f SHA512 5021d4f1ddfcb9baa05926bf3e6cd00f051f301037b2166a48b178a945052a4b2424efd175759a0dde7d604316269ead8554c4eb0c2c46c11d1fd54fad6801a1
 DIST ncurses-6.3-20220827.patch.gz.asc 729 BLAKE2B 363bfe97448821c0eef29e36213389dc9908f289332001851b72e5f0381f76195663f1423150d74c23bb425a37808094e3fa06a261451f59a49861008cbf0e6f SHA512 7180f24a55e3941c7d82498004efb8ef1e9316318c6c53ea5bc1d2b499c960844ff7fd95e1131fcdf2ee4b94a0e8e54ee3f76934c3d91a87775b4a87347f479e
+DIST ncurses-6.3-20220903.patch.gz 4814 BLAKE2B 668041aef48d9ce37474edc6d70e0725323ccb1586a88bddda8e7f81a7717688041e73909089b6d15abdefaeffe0bb9565245dee4b086f07c783b0d95e8e7dbc SHA512 487dd56afd773eafa38260f8067293d41ed6bb9ff841b4c7528c12969b00151b7a3788b0b306d3997d7fb1e98c05ccb32c56f8c839bcc2d9eb4aa9e3db4bae1e
+DIST ncurses-6.3-20220903.patch.gz.asc 729 BLAKE2B 2f076ce9d390ee02edc0b58ecf3a6881897062e34a5f4c09b503c4b306ee70fb0f08e38518029eae4933508a48bda92716dd4b76159a0aa3d7bbd3835d2695ff SHA512 18cb1a77f67b6fddc9f83366487cb547fe1439e7edcd4fc27632702cd3ffc79622dd1421d32454489d08acec7403a04239b34794e81750b703385189a4534b04
 DIST ncurses-6.3.tar.gz 3583550 BLAKE2B b2c174ac48d587b4d3aa054f04e4ec8bffd8a657a4aff5f090104965c741901e600712c8f8e5e98f3b8a26bc558996a1e14a746f113854832853b855e9d406c3 SHA512 5373f228cba6b7869210384a607a2d7faecfcbfef6dbfcd7c513f4e84fbd8bcad53ac7db2e7e84b95582248c1039dcfc7c4db205a618f7da22a166db482f0105
 DIST ncurses-6.3.tar.gz.sig 438 BLAKE2B d7f9852292110fe7a048a9e38611ea06564b5142cb4cbeb8d99bba752d5df8eeffa3b57e5ca315c14024520bc008b30650e99669c995dca05a798399a0c85d39 SHA512 b9a2a25e0b1854c272bf89c610c81fc0ba061f0296eca5c0079a79cfe310e44eb16c46eb5a0dd018f1ca9114d569c9d5087a2b8e60b0344f1eb97f7c5addafc6
+DIST ncurses-6.3_p20220903-musl-xopen_source.patch.xz 43008 BLAKE2B 463645c62d2c72e8e1be14e510867d709ec6f78e3d7b78df317f5a8351264f19c04cb93cd3296a1df783db58d4ed5e5885f9b45a04dd0d549db9e41274d8448f SHA512 c2b0810fafca1cffb27095d207fe2d29daf5d1bbc79142a717ea79df8d3873b12664fbd8538e08c4576f9366acc7ac335b56df62310efc191cf20df52af2bf1c

diff --git a/sys-libs/ncurses/ncurses-6.3_p20220903-r1.ebuild b/sys-libs/ncurses/ncurses-6.3_p20220903-r1.ebuild
new file mode 100644
index 000000000000..d2f153326cad
--- /dev/null
+++ b/sys-libs/ncurses/ncurses-6.3_p20220903-r1.ebuild
@@ -0,0 +1,437 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/thomasdickey.asc
+inherit flag-o-matic toolchain-funcs multilib multilib-minimal preserve-libs usr-ldscript verify-sig
+
+MY_PV="${PV:0:3}"
+MY_P="${PN}-${MY_PV}"
+DESCRIPTION="Console display library"
+HOMEPAGE="https://www.gnu.org/software/ncurses/ https://invisible-island.net/ncurses/"
+SRC_URI="mirror://gnu/ncurses/${MY_P}.tar.gz
+	https://invisible-island.net/archives/${PN}/${MY_P}.tar.gz
+	verify-sig? ( mirror://gnu/ncurses/${MY_P}.tar.gz.sig )"
+
+UPSTREAM_PATCHES=()
+
+if [[ ${PV} == *_p* ]] ; then
+	# Sometimes, after releases, there's no megapatch available yet.
+	#
+	# From upstream README at e.g. https://invisible-island.net/archives/ncurses/6.3/:
+	#
+	#	"At times (generally to mark a relatively stable point), I create a rollup
+	#	patch, which consists of all changes from the release through the current date."
+	#
+	# Also, from https://lists.gnu.org/archive/html/bug-ncurses/2019-08/msg00039.html,
+	# the patches are considered to be acceptable to use after some testing. They
+	# are both for development but also bug fixes.
+	#
+	# This array should contain a list of all the snapshots since the last
+	# release if there's no megapatch available yet.
+	PATCH_DATES=(
+		20211026
+		20211030
+		20211106
+		20211113
+		20211115
+		20211120
+		20211127
+		20211204
+		20211211
+		20211219
+		20211225
+		20220101
+		20220115
+		20220122
+		20220129
+		20220205
+		20220212
+		20220219
+		20220226
+		20220305
+		20220312
+		20220319
+		20220326
+		20220402
+		20220409
+		20220416
+		20220423
+		20220430
+		20220501
+		20220507
+		20220514
+		20220521
+		20220529
+		20220604
+		20220612
+		20220618
+		20220625
+		20220703
+		20220709
+		20220716
+		20220724
+		20220729
+		20220806
+		20220813
+		20220820
+		20220827
+
+		# Latest patch is just _pN = $(ver_cut 4)
+		$(ver_cut 4)
+	)
+
+	if [[ -z ${PATCH_DATES[@]} ]] ; then
+		SRC_URI+=" https://invisible-island.net/archives/${PN}/${PV/_p*}/${P/_p/-}.patch.sh.gz"
+		SRC_URI+=" verify-sig? ( https://invisible-island.net/archives/${PN}/${PV/_p*}/${P/_p/-}.patch.sh.gz.asc"
+
+		# If we have a rollup patch, use that instead of the individual ones.
+		UPSTREAM_PATCHES+=( "${WORKDIR}"/${P/_p/-}-patch.sh )
+	else
+		patch_url=
+		my_patch_index=
+
+		for ((my_patch_index=0; my_patch_index < "${#PATCH_DATES[@]}"; my_patch_index++)); do
+			patch_url="$(printf "https://invisible-island.net/archives/${PN}/${PV/_p*}/${MY_P}-%s" ${PATCH_DATES[${my_patch_index}]}.patch.gz)"
+			SRC_URI+=" ${patch_url}"
+			SRC_URI+=" verify-sig? ( ${patch_url}.asc )"
+			UPSTREAM_PATCHES+=( "${WORKDIR}"/${MY_P}-${PATCH_DATES[${my_patch_index}]}.patch )
+		done
+
+		unset patch_url
+		unset my_patch_index
+	fi
+
+	SRC_URI+=" https://dev.gentoo.org/~sam/distfiles/${CATEGORY}/${PN}/${PN}-6.3_p20220903-musl-xopen_source.patch.xz"
+fi
+
+LICENSE="MIT"
+# The subslot reflects the SONAME.
+SLOT="0/6"
+#KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+IUSE="ada +cxx debug doc gpm minimal profile +stack-realign static-libs test tinfo trace"
+RESTRICT="!test? ( test )"
+
+DEPEND="gpm? ( sys-libs/gpm[${MULTILIB_USEDEP}] )"
+# Block the older ncurses that installed all files w/SLOT=5, bug #557472
+RDEPEND="${DEPEND}
+	!<=sys-libs/ncurses-5.9-r4:5
+	!<sys-libs/slang-2.3.2_pre23
+	!<x11-terms/rxvt-unicode-9.06-r3
+	!<x11-terms/st-0.6-r1"
+BDEPEND="verify-sig? ( sec-keys/openpgp-keys-thomasdickey )"
+
+S="${WORKDIR}/${MY_P}"
+
+PATCHES=(
+	${UPSTREAM_PATCHES[@]}
+
+	"${FILESDIR}/${PN}-5.7-nongnu.patch"
+	"${FILESDIR}/${PN}-6.0-rxvt-unicode-9.15.patch" # bug #192083, bug #383871
+	"${FILESDIR}/${PN}-6.0-pkg-config.patch"
+	"${FILESDIR}/${PN}-6.0-ticlib.patch" # bug #557360
+	"${FILESDIR}/${PN}-6.2_p20210123-cppflags-cross.patch" # bug #601426
+	"${WORKDIR}/${PN}-6.3_p20220903-musl-xopen_source.patch" # bug #869128
+)
+
+src_unpack() {
+	# Can drop this implementation once 6.3_p20220903-musl-xopen_source.patch is dropped
+	local file
+	for file in ${A} ; do
+		if [[ ${file} == ${MY_P}.tar.gz ]] ; then
+			verify-sig_verify_detached "${DISTDIR}"/${file} "${DISTDIR}"/${file}.sig
+		else
+			[[ ${file} == @(*musl-xopen_source.patch.xz|*.asc|*.sig) ]] && continue
+
+			verify-sig_verify_detached "${DISTDIR}"/${file} "${DISTDIR}"/${file}.asc
+		fi
+	done
+
+	default
+}
+
+src_configure() {
+	# bug #115036
+	unset TERMINFO
+
+	tc-export_build_env BUILD_{CC,CPP}
+
+	# bug #214642
+	BUILD_CPPFLAGS+=" -D_GNU_SOURCE"
+
+	# Build the various variants of ncurses -- narrow, wide, and threaded. #510440
+	# Order matters here -- we want unicode/thread versions to come last so that the
+	# binaries in /usr/bin support both wide and narrow.
+	# The naming is also important as we use these directly with filenames and when
+	# checking configure flags.
+	NCURSES_TARGETS=(
+		ncurses
+		ncursesw
+		ncursest
+		ncursestw
+	)
+
+	# When installing ncurses, we have to use a compatible version of tic.
+	# This comes up when cross-compiling, doing multilib builds, upgrading,
+	# or installing for the first time.  Build a local copy of tic whenever
+	# the host version isn't available. bug #249363, bug #557598
+	if ! has_version -b "~sys-libs/${P}:0" ; then
+		local lbuildflags="-static"
+
+		# some toolchains don't quite support static linking
+		local dbuildflags="-Wl,-rpath,${WORKDIR}/lib"
+		case ${CHOST} in
+			*-darwin*)  dbuildflags=     ;;
+			*-solaris*) dbuildflags="-Wl,-R,${WORKDIR}/lib" ;;
+		esac
+		echo "int main() {}" | \
+			$(tc-getCC) -o x -x c - ${lbuildflags} -pipe >& /dev/null \
+			|| lbuildflags="${dbuildflags}"
+
+		# We can't re-use the multilib BUILD_DIR because we run outside of it.
+		BUILD_DIR="${WORKDIR}" \
+		CC=${BUILD_CC} \
+		CHOST=${CBUILD} \
+		CFLAGS=${BUILD_CFLAGS} \
+		CXXFLAGS=${BUILD_CXXFLAGS} \
+		CPPFLAGS=${BUILD_CPPFLAGS} \
+		LDFLAGS="${BUILD_LDFLAGS} ${lbuildflags}" \
+		do_configure cross --without-shared --with-normal --with-progs
+	fi
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	if [[ ${ABI} == x86 ]] ; then
+		# For compatibility with older binaries at slight performance cost.
+		# bug #616402
+		use stack-realign && append-flags -mstackrealign
+	fi
+
+	local t
+	for t in "${NCURSES_TARGETS[@]}" ; do
+		do_configure "${t}"
+	done
+}
+
+do_configure() {
+	local target=$1
+	shift
+
+	mkdir "${BUILD_DIR}/${target}" || die
+	cd "${BUILD_DIR}/${target}" || die
+
+	local conf=(
+		# We need the basic terminfo files in /etc, bug #37026.  We will
+		# add '--with-terminfo-dirs' and then populate /etc/terminfo in
+		# src_install() ...
+		--with-terminfo-dirs="${EPREFIX}/etc/terminfo:${EPREFIX}/usr/share/terminfo"
+
+		# Enable installation of .pc files.
+		--enable-pc-files
+		# This path is used to control where the .pc files are installed.
+		--with-pkg-config-libdir="${EPREFIX}/usr/$(get_libdir)/pkgconfig"
+
+		# Now the rest of the various standard flags.
+		--with-shared
+		# (Originally disabled until bug #245417 is sorted out, but now
+		# just keeping it off for good, given nobody needed it until now
+		# (2022) and we're trying to phase out bdb.)
+		--without-hashed-db
+		$(use_with ada)
+		$(use_with cxx)
+		$(use_with cxx cxx-binding)
+		--with-cxx-shared
+		$(use_with debug)
+		$(use_with profile)
+		# The configure script uses ldd to parse the linked output which
+		# is flaky for cross-compiling/multilib/ldd versions/etc...
+		$(use_with gpm gpm libgpm.so.1)
+		# Required for building  on mingw-w64, and possibly other windows
+		# platforms, bug #639670
+		$(use_enable kernel_Winnt term-driver)
+		--disable-termcap
+		--enable-symlinks
+		--with-rcs-ids
+		--with-manpage-format=normal
+		--enable-const
+		--enable-colorfgbg
+		--enable-hard-tabs
+		--enable-echo
+		$(use_enable !ada warnings)
+		$(use_with debug assertions)
+		$(use_enable !debug leaks)
+		$(use_with debug expanded)
+		$(use_with !debug macros)
+		$(multilib_native_with progs)
+		$(use_with test tests)
+		$(use_with trace)
+		$(use_with tinfo termlib)
+		--disable-stripping
+		--disable-pkg-ldflags
+	)
+
+	if [[ ${target} == ncurses*w ]] ; then
+		conf+=( --enable-widec )
+	else
+		conf+=( --disable-widec )
+	fi
+	if [[ ${target} == ncursest* ]] ; then
+		conf+=( --with-{pthread,reentrant} )
+	else
+		conf+=( --without-{pthread,reentrant} )
+	fi
+
+	# Make sure each variant goes in a unique location.
+	if [[ ${target} == "ncurses" ]] ; then
+		# "ncurses" variant goes into "${EPREFIX}"/usr/include
+		# It is needed on Prefix because the configure script appends
+		# "ncurses" to "${prefix}/include" if "${prefix}" is not /usr.
+		conf+=( --enable-overwrite )
+	else
+		conf+=( --includedir="${EPREFIX}"/usr/include/${target} )
+	fi
+	# See comments in src_configure.
+	if [[ ${target} != "cross" ]] ; then
+		local cross_path="${WORKDIR}/cross"
+		[[ -d ${cross_path} ]] && export TIC_PATH="${cross_path}/progs/tic"
+	fi
+
+	ECONF_SOURCE="${S}" econf "${conf[@]}" "$@"
+}
+
+src_compile() {
+	# See comments in src_configure.
+	if ! has_version -b "~sys-libs/${P}:0" ; then
+		# We could possibly merge these two branches but opting to be
+		# conservative when merging some of the Prefix changes.
+
+		if [[ ${CHOST} == *-cygwin* ]] && ! multilib_is_native_abi ; then
+			# We make 'tic$(x)' here, for Cygwin having x=".exe".
+			BUILD_DIR="${WORKDIR}" \
+				 do_compile cross -C progs all PROGS='tic$(x)'
+		else
+			BUILD_DIR="${WORKDIR}" \
+				 do_compile cross -C progs tic
+		fi
+	fi
+
+	multilib-minimal_src_compile
+}
+
+multilib_src_compile() {
+	local t
+	for t in "${NCURSES_TARGETS[@]}" ; do
+		do_compile "${t}"
+	done
+}
+
+do_compile() {
+	local target=$1
+	shift
+
+	cd "${BUILD_DIR}/${target}" || die
+
+	# A little hack to fix parallel builds ... they break when
+	# generating sources so if we generate the sources first (in
+	# non-parallel), we can then build the rest of the package
+	# in parallel.  This is not really a perf hit since the source
+	# generation is quite small.
+	emake -j1 sources
+
+	# For some reason, sources depends on pc-files which depends on
+	# compiled libraries which depends on sources which ...
+	# Manually delete the pc-files file so the install step will
+	# create the .pc files we want.
+	rm -f misc/pc-files || die
+	emake "$@"
+}
+
+multilib_src_install() {
+	local target
+	for target in "${NCURSES_TARGETS[@]}" ; do
+		emake -C "${BUILD_DIR}/${target}" DESTDIR="${D}" install
+	done
+
+	# Move main libraries into /.
+	if multilib_is_native_abi ; then
+		gen_usr_ldscript -a \
+			"${NCURSES_TARGETS[@]}" \
+			$(usex tinfo 'tinfow tinfo' '')
+	fi
+
+	# Don't delete '*.dll.a', needed for linking, bug #631468
+	if ! use static-libs; then
+		find "${ED}"/usr/ -name '*.a' ! -name '*.dll.a' -delete || die
+	fi
+
+	# Build fails to create this ...
+	# -FIXME-
+	# Ugly hackaround for riscv having two parts libdir (bug #689240)
+	# Replace this hack with an official solution once we have one...
+	# -FIXME-
+	dosym $(sed 's@[^/]\+@..@g' <<< $(get_libdir))/share/terminfo \
+		/usr/$(get_libdir)/terminfo
+
+	# Remove obsolete libcurses symlink that is created by the build
+	# system. Technically, this could be also achieved
+	# via --disable-overwrite but it also moves headers implicitly,
+	# and we do not want to do this yet.
+	# bug #836696
+	rm "${ED}"/usr/$(get_libdir)/libcurses* || die
+}
+
+multilib_src_install_all() {
+	# We need the basic terminfo files in /etc for embedded/recovery, bug #37026
+	einfo "Installing basic terminfo files in /etc..."
+	local terms=(
+		# Dumb/simple values that show up when using the in-kernel VT.
+		ansi console dumb linux
+		vt{52,100,102,200,220}
+		# [u]rxvt users used to be pretty common.  Probably should drop this
+		# since upstream is dead and people are moving away from it.
+		rxvt{,-unicode}{,-256color}
+		# xterm users are common, as is terminals re-using/spoofing it.
+		xterm xterm-{,256}color
+		# screen is common (and reused by tmux).
+		screen{,-256color}
+		screen.xterm-256color
+	)
+	local x
+	for x in "${terms[@]}"; do
+		local termfile=$(find "${ED}"/usr/share/terminfo/ -name "${x}" 2>/dev/null)
+		local basedir=$(basename "$(dirname "${termfile}")")
+
+		if [[ -n ${termfile} ]] ; then
+			dodir "/etc/terminfo/${basedir}"
+			mv "${termfile}" "${ED}/etc/terminfo/${basedir}/" || die
+			dosym "../../../../etc/terminfo/${basedir}/${x}" \
+				"/usr/share/terminfo/${basedir}/${x}"
+		fi
+	done
+
+	echo "CONFIG_PROTECT_MASK=\"/etc/terminfo\"" | newenvd - 50ncurses
+
+	use minimal && rm -r "${ED}"/usr/share/terminfo*
+	# Because ncurses5-config --terminfo returns the directory we keep it
+	# bug #245374
+	keepdir /usr/share/terminfo
+
+	cd "${S}" || die
+	dodoc ANNOUNCE MANIFEST NEWS README* TO-DO doc/*.doc
+	if use doc ; then
+		docinto html
+		dodoc -r doc/html/
+	fi
+}
+
+pkg_preinst() {
+	preserve_old_lib /$(get_libdir)/libncurses.so.5
+	preserve_old_lib /$(get_libdir)/libncursesw.so.5
+}
+
+pkg_postinst() {
+	preserve_old_lib_notify /$(get_libdir)/libncurses.so.5
+	preserve_old_lib_notify /$(get_libdir)/libncursesw.so.5
+}

diff --git a/sys-libs/ncurses/ncurses-6.3_p20220903.ebuild b/sys-libs/ncurses/ncurses-6.3_p20220903.ebuild
new file mode 100644
index 000000000000..4940f350cbdd
--- /dev/null
+++ b/sys-libs/ncurses/ncurses-6.3_p20220903.ebuild
@@ -0,0 +1,435 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/thomasdickey.asc
+inherit flag-o-matic toolchain-funcs multilib multilib-minimal preserve-libs usr-ldscript verify-sig
+
+MY_PV="${PV:0:3}"
+MY_P="${PN}-${MY_PV}"
+DESCRIPTION="Console display library"
+HOMEPAGE="https://www.gnu.org/software/ncurses/ https://invisible-island.net/ncurses/"
+SRC_URI="mirror://gnu/ncurses/${MY_P}.tar.gz
+	https://invisible-island.net/archives/${PN}/${MY_P}.tar.gz
+	verify-sig? ( mirror://gnu/ncurses/${MY_P}.tar.gz.sig )"
+
+UPSTREAM_PATCHES=()
+
+if [[ ${PV} == *_p* ]] ; then
+	# Sometimes, after releases, there's no megapatch available yet.
+	#
+	# From upstream README at e.g. https://invisible-island.net/archives/ncurses/6.3/:
+	#
+	#	"At times (generally to mark a relatively stable point), I create a rollup
+	#	patch, which consists of all changes from the release through the current date."
+	#
+	# Also, from https://lists.gnu.org/archive/html/bug-ncurses/2019-08/msg00039.html,
+	# the patches are considered to be acceptable to use after some testing. They
+	# are both for development but also bug fixes.
+	#
+	# This array should contain a list of all the snapshots since the last
+	# release if there's no megapatch available yet.
+	PATCH_DATES=(
+		20211026
+		20211030
+		20211106
+		20211113
+		20211115
+		20211120
+		20211127
+		20211204
+		20211211
+		20211219
+		20211225
+		20220101
+		20220115
+		20220122
+		20220129
+		20220205
+		20220212
+		20220219
+		20220226
+		20220305
+		20220312
+		20220319
+		20220326
+		20220402
+		20220409
+		20220416
+		20220423
+		20220430
+		20220501
+		20220507
+		20220514
+		20220521
+		20220529
+		20220604
+		20220612
+		20220618
+		20220625
+		20220703
+		20220709
+		20220716
+		20220724
+		20220729
+		20220806
+		20220813
+		20220820
+		20220827
+
+		# Latest patch is just _pN = $(ver_cut 4)
+		$(ver_cut 4)
+	)
+
+	if [[ -z ${PATCH_DATES[@]} ]] ; then
+		SRC_URI+=" https://invisible-island.net/archives/${PN}/${PV/_p*}/${P/_p/-}.patch.sh.gz"
+		SRC_URI+=" verify-sig? ( https://invisible-island.net/archives/${PN}/${PV/_p*}/${P/_p/-}.patch.sh.gz.asc"
+
+		# If we have a rollup patch, use that instead of the individual ones.
+		UPSTREAM_PATCHES+=( "${WORKDIR}"/${P/_p/-}-patch.sh )
+	else
+		patch_url=
+		my_patch_index=
+
+		for ((my_patch_index=0; my_patch_index < "${#PATCH_DATES[@]}"; my_patch_index++)); do
+			patch_url="$(printf "https://invisible-island.net/archives/${PN}/${PV/_p*}/${MY_P}-%s" ${PATCH_DATES[${my_patch_index}]}.patch.gz)"
+			SRC_URI+=" ${patch_url}"
+			SRC_URI+=" verify-sig? ( ${patch_url}.asc )"
+			UPSTREAM_PATCHES+=( "${WORKDIR}"/${MY_P}-${PATCH_DATES[${my_patch_index}]}.patch )
+		done
+
+		unset patch_url
+		unset my_patch_index
+	fi
+
+	SRC_URI+=" https://dev.gentoo.org/~sam/distfiles/${CATEGORY}/${PN}/${PN}-6.3_p20220903-musl-xopen_source.patch.xz"
+fi
+
+LICENSE="MIT"
+# The subslot reflects the SONAME.
+SLOT="0/6"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+IUSE="ada +cxx debug doc gpm minimal profile +stack-realign static-libs test tinfo trace"
+RESTRICT="!test? ( test )"
+
+DEPEND="gpm? ( sys-libs/gpm[${MULTILIB_USEDEP}] )"
+# Block the older ncurses that installed all files w/SLOT=5, bug #557472
+RDEPEND="${DEPEND}
+	!<=sys-libs/ncurses-5.9-r4:5
+	!<sys-libs/slang-2.3.2_pre23
+	!<x11-terms/rxvt-unicode-9.06-r3
+	!<x11-terms/st-0.6-r1"
+BDEPEND="verify-sig? ( sec-keys/openpgp-keys-thomasdickey )"
+
+S="${WORKDIR}/${MY_P}"
+
+PATCHES=(
+	${UPSTREAM_PATCHES[@]}
+
+	"${FILESDIR}/${PN}-5.7-nongnu.patch"
+	"${FILESDIR}/${PN}-6.0-rxvt-unicode-9.15.patch" # bug #192083, bug #383871
+	"${FILESDIR}/${PN}-6.0-pkg-config.patch"
+	"${FILESDIR}/${PN}-6.0-ticlib.patch" # bug #557360
+	"${FILESDIR}/${PN}-6.2_p20210123-cppflags-cross.patch" # bug #601426
+	"${WORKDIR}/${PN}-6.3_p20220903-musl-xopen_source.patch" # bug #869128
+)
+
+src_unpack() {
+	# Can drop this implementation once 6.3_p20220903-musl-xopen_source.patch is dropped
+	local file
+	for file in ${A} ; do
+		if [[ ${file} == ${MY_P}.tar.gz ]] ; then
+			verify-sig_verify_detached "${DISTDIR}"/${file} "${DISTDIR}"/${file}.sig
+		else
+			[[ ${file} == @(*musl-xopen_source.patch.xz|*.asc|*.sig) ]] && continue
+
+			verify-sig_verify_detached "${DISTDIR}"/${file} "${DISTDIR}"/${file}.asc
+		fi
+	done
+
+	default
+}
+
+src_configure() {
+	# bug #115036
+	unset TERMINFO
+
+	tc-export_build_env BUILD_{CC,CPP}
+
+	# bug #214642
+	BUILD_CPPFLAGS+=" -D_GNU_SOURCE"
+
+	# Build the various variants of ncurses -- narrow, wide, and threaded. #510440
+	# Order matters here -- we want unicode/thread versions to come last so that the
+	# binaries in /usr/bin support both wide and narrow.
+	# The naming is also important as we use these directly with filenames and when
+	# checking configure flags.
+	NCURSES_TARGETS=(
+		ncurses
+		ncursesw
+		ncursest
+		ncursestw
+	)
+
+	# When installing ncurses, we have to use a compatible version of tic.
+	# This comes up when cross-compiling, doing multilib builds, upgrading,
+	# or installing for the first time.  Build a local copy of tic whenever
+	# the host version isn't available. bug #249363, bug #557598
+	if ! has_version -b "~sys-libs/${P}:0" ; then
+		local lbuildflags="-static"
+
+		# some toolchains don't quite support static linking
+		local dbuildflags="-Wl,-rpath,${WORKDIR}/lib"
+		case ${CHOST} in
+			*-darwin*)  dbuildflags=     ;;
+			*-solaris*) dbuildflags="-Wl,-R,${WORKDIR}/lib" ;;
+		esac
+		echo "int main() {}" | \
+			$(tc-getCC) -o x -x c - ${lbuildflags} -pipe >& /dev/null \
+			|| lbuildflags="${dbuildflags}"
+
+		# We can't re-use the multilib BUILD_DIR because we run outside of it.
+		BUILD_DIR="${WORKDIR}" \
+		CC=${BUILD_CC} \
+		CHOST=${CBUILD} \
+		CFLAGS=${BUILD_CFLAGS} \
+		CXXFLAGS=${BUILD_CXXFLAGS} \
+		CPPFLAGS=${BUILD_CPPFLAGS} \
+		LDFLAGS="${BUILD_LDFLAGS} ${lbuildflags}" \
+		do_configure cross --without-shared --with-normal --with-progs
+	fi
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	if [[ ${ABI} == x86 ]] ; then
+		# For compatibility with older binaries at slight performance cost.
+		# bug #616402
+		use stack-realign && append-flags -mstackrealign
+	fi
+
+	local t
+	for t in "${NCURSES_TARGETS[@]}" ; do
+		do_configure "${t}"
+	done
+}
+
+do_configure() {
+	local target=$1
+	shift
+
+	mkdir "${BUILD_DIR}/${target}" || die
+	cd "${BUILD_DIR}/${target}" || die
+
+	local conf=(
+		# We need the basic terminfo files in /etc, bug #37026.  We will
+		# add '--with-terminfo-dirs' and then populate /etc/terminfo in
+		# src_install() ...
+		--with-terminfo-dirs="${EPREFIX}/etc/terminfo:${EPREFIX}/usr/share/terminfo"
+
+		# Enable installation of .pc files.
+		--enable-pc-files
+		# This path is used to control where the .pc files are installed.
+		--with-pkg-config-libdir="${EPREFIX}/usr/$(get_libdir)/pkgconfig"
+
+		# Now the rest of the various standard flags.
+		--with-shared
+		# (Originally disabled until bug #245417 is sorted out, but now
+		# just keeping it off for good, given nobody needed it until now
+		# (2022) and we're trying to phase out bdb.)
+		--without-hashed-db
+		$(use_with ada)
+		$(use_with cxx)
+		$(use_with cxx cxx-binding)
+		--with-cxx-shared
+		$(use_with debug)
+		$(use_with profile)
+		# The configure script uses ldd to parse the linked output which
+		# is flaky for cross-compiling/multilib/ldd versions/etc...
+		$(use_with gpm gpm libgpm.so.1)
+		# Required for building  on mingw-w64, and possibly other windows
+		# platforms, bug #639670
+		$(use_enable kernel_Winnt term-driver)
+		--disable-termcap
+		--enable-symlinks
+		--with-rcs-ids
+		--with-manpage-format=normal
+		--enable-const
+		--enable-colorfgbg
+		--enable-hard-tabs
+		--enable-echo
+		$(use_enable !ada warnings)
+		$(use_with debug assertions)
+		$(use_enable !debug leaks)
+		$(use_with debug expanded)
+		$(use_with !debug macros)
+		$(multilib_native_with progs)
+		$(use_with test tests)
+		$(use_with trace)
+		$(use_with tinfo termlib)
+		--disable-stripping
+		--disable-pkg-ldflags
+	)
+
+	if [[ ${target} == ncurses*w ]] ; then
+		conf+=( --enable-widec )
+	else
+		conf+=( --disable-widec )
+	fi
+	if [[ ${target} == ncursest* ]] ; then
+		conf+=( --with-{pthread,reentrant} )
+	else
+		conf+=( --without-{pthread,reentrant} )
+	fi
+
+	# Make sure each variant goes in a unique location.
+	if [[ ${target} == "ncurses" ]] ; then
+		# "ncurses" variant goes into "${EPREFIX}"/usr/include
+		# It is needed on Prefix because the configure script appends
+		# "ncurses" to "${prefix}/include" if "${prefix}" is not /usr.
+		conf+=( --enable-overwrite )
+	else
+		conf+=( --includedir="${EPREFIX}"/usr/include/${target} )
+	fi
+	# See comments in src_configure.
+	if [[ ${target} != "cross" ]] ; then
+		local cross_path="${WORKDIR}/cross"
+		[[ -d ${cross_path} ]] && export TIC_PATH="${cross_path}/progs/tic"
+	fi
+
+	ECONF_SOURCE="${S}" econf "${conf[@]}" "$@"
+}
+
+src_compile() {
+	# See comments in src_configure.
+	if ! has_version -b "~sys-libs/${P}:0" ; then
+		# We could possibly merge these two branches but opting to be
+		# conservative when merging some of the Prefix changes.
+
+		if [[ ${CHOST} == *-cygwin* ]] && ! multilib_is_native_abi ; then
+			# We make 'tic$(x)' here, for Cygwin having x=".exe".
+			BUILD_DIR="${WORKDIR}" \
+				 do_compile cross -C progs all PROGS='tic$(x)'
+		else
+			BUILD_DIR="${WORKDIR}" \
+				 do_compile cross -C progs tic
+		fi
+	fi
+
+	multilib-minimal_src_compile
+}
+
+multilib_src_compile() {
+	local t
+	for t in "${NCURSES_TARGETS[@]}" ; do
+		do_compile "${t}"
+	done
+}
+
+do_compile() {
+	local target=$1
+	shift
+
+	cd "${BUILD_DIR}/${target}" || die
+
+	# A little hack to fix parallel builds ... they break when
+	# generating sources so if we generate the sources first (in
+	# non-parallel), we can then build the rest of the package
+	# in parallel.  This is not really a perf hit since the source
+	# generation is quite small.
+	emake -j1 sources
+
+	# For some reason, sources depends on pc-files which depends on
+	# compiled libraries which depends on sources which ...
+	# Manually delete the pc-files file so the install step will
+	# create the .pc files we want.
+	rm -f misc/pc-files || die
+	emake "$@"
+}
+
+multilib_src_install() {
+	local target
+	for target in "${NCURSES_TARGETS[@]}" ; do
+		emake -C "${BUILD_DIR}/${target}" DESTDIR="${D}" install
+	done
+
+	# Move main libraries into /.
+	if multilib_is_native_abi ; then
+		gen_usr_ldscript -a \
+			"${NCURSES_TARGETS[@]}" \
+			$(usex tinfo 'tinfow tinfo' '')
+	fi
+
+	if ! tc-is-static-only ; then
+		# Provide a link for -lcurses.
+		ln -sf libncurses$(get_libname) "${ED}"/usr/$(get_libdir)/libcurses$(get_libname) || die
+	fi
+
+	# Don't delete '*.dll.a', needed for linking, bug #631468
+	if ! use static-libs; then
+		find "${ED}"/usr/ -name '*.a' ! -name '*.dll.a' -delete || die
+	fi
+
+	# Build fails to create this ...
+	# -FIXME-
+	# Ugly hackaround for riscv having two parts libdir (bug #689240)
+	# Replace this hack with an official solution once we have one...
+	# -FIXME-
+	dosym $(sed 's@[^/]\+@..@g' <<< $(get_libdir))/share/terminfo \
+		/usr/$(get_libdir)/terminfo
+}
+
+multilib_src_install_all() {
+	# We need the basic terminfo files in /etc for embedded/recovery, bug #37026
+	einfo "Installing basic terminfo files in /etc..."
+	local terms=(
+		# Dumb/simple values that show up when using the in-kernel VT.
+		ansi console dumb linux
+		vt{52,100,102,200,220}
+		# [u]rxvt users used to be pretty common.  Probably should drop this
+		# since upstream is dead and people are moving away from it.
+		rxvt{,-unicode}{,-256color}
+		# xterm users are common, as is terminals re-using/spoofing it.
+		xterm xterm-{,256}color
+		# screen is common (and reused by tmux).
+		screen{,-256color}
+		screen.xterm-256color
+	)
+	local x
+	for x in "${terms[@]}"; do
+		local termfile=$(find "${ED}"/usr/share/terminfo/ -name "${x}" 2>/dev/null)
+		local basedir=$(basename "$(dirname "${termfile}")")
+
+		if [[ -n ${termfile} ]] ; then
+			dodir "/etc/terminfo/${basedir}"
+			mv "${termfile}" "${ED}/etc/terminfo/${basedir}/" || die
+			dosym "../../../../etc/terminfo/${basedir}/${x}" \
+				"/usr/share/terminfo/${basedir}/${x}"
+		fi
+	done
+
+	echo "CONFIG_PROTECT_MASK=\"/etc/terminfo\"" | newenvd - 50ncurses
+
+	use minimal && rm -r "${ED}"/usr/share/terminfo*
+	# Because ncurses5-config --terminfo returns the directory we keep it
+	# bug #245374
+	keepdir /usr/share/terminfo
+
+	cd "${S}" || die
+	dodoc ANNOUNCE MANIFEST NEWS README* TO-DO doc/*.doc
+	if use doc ; then
+		docinto html
+		dodoc -r doc/html/
+	fi
+}
+
+pkg_preinst() {
+	preserve_old_lib /$(get_libdir)/libncurses.so.5
+	preserve_old_lib /$(get_libdir)/libncursesw.so.5
+}
+
+pkg_postinst() {
+	preserve_old_lib_notify /$(get_libdir)/libncurses.so.5
+	preserve_old_lib_notify /$(get_libdir)/libncursesw.so.5
+}