dev-cpp/abseil-cpp: add 20260107.1, use C++20

With all non-cmake consumers fixed for C++20 we can default to it.

See-also: 9136fcf3c6
Bug: https://bugs.gentoo.org/966846
Closes: https://github.com/gentoo/gentoo/pull/45934
Signed-off-by: Paul Zander <negril.nx+gentoo@gmail.com>
Part-of: https://codeberg.org/gentoo/gentoo/pulls/635
Signed-off-by: Sam James <sam@gentoo.org>

dev-cpp/abseil-cpp/Manifest

@@ -2,3 +2,5 @@ DIST abseil-cpp-20250127.0-PR1834.patch 968 BLAKE2B b563725afcae9fcbddde9aef1e49
 DIST abseil-cpp-20250127.1.tar.gz 2267282 BLAKE2B 61a6f0340c3883f097c56161d67f0046398513ef716d33a7b26e55e33032262f2e5f02c678318688f7f72a5eea7a88b37abf6d2f84e52626a258c497bea80a83 SHA512 8312acf0ed74fa28c6397f3e41ada656dbd5ca2bf8db484319d74b144ad19c0ebdc77f7f03436be6c6ca1cde706b9055079233cf0d6b5ada4ca48406f8a55dd8
 DIST abseil-cpp-20250512.1.tar.gz 2221441 BLAKE2B f84faffcc606b0e4ece3cd8494e6727d74faf74c2900928c317dbce1393a4e3095ecdea4529311323b99459879957841a7300fed0499eba28fc9d764c9ddca40 SHA512 d3ba654ed7dd7b432494918b2de5d8e2b0ad1c42752c5d726f20d6fe2841828fb4e8beb853e3570a11efecef725029ce5ffa3ebc434efff007e7f60735eb9856
 DIST abseil-cpp-20250814.1.tar.gz 2235716 BLAKE2B ae29b10f7efb18e20a4c7e4931f20ee169775022cd9ce15c0a23e28a2c3c577d2cf30f60f0890112e45378684485b8b11b101eaf6827faa604e5ef38fb794862 SHA512 7083b73c3cf763f6f7a7edb70a5171f44d27045a0f5e52ca043e0a86379af2c50cf85dbfea30ebaa22a7bb2929452581d26b1ba18945023b057267d4c3bad2f7
+DIST abseil-cpp-20260107.0-c++23.patch 3916 BLAKE2B 63d23b1604d43f1954e51569c77f122aa93a96ceafd6f8edd8d5500140804b564f0b23f9d10432ed9ec83ec99dc852cedbf31ec9be1ceba571550a1ed711adaa SHA512 a37dd86d6cf985a614419c5cb7931535cb7624c6684ca8044fc775b7715730c8d65cd7d66616a4b09e0e1edd69390e81d5c9fad0288d7b5e140063ac6e863fe8
+DIST abseil-cpp-20260107.1.tar.gz 2301097 BLAKE2B 1c0814eefb6181a82437128c9d3c08dec0540c2353b8a317204c49b1510b311173897de4a737da6f0cc034bf1b23717dea54f0338e3794f6a56f7292f53937bc SHA512 f5012885d6b6844a9cf5ed92ad5468b8757db33dfe1364bfb232fff928e06c550c7eb4557f45186a8ac4d18b178df9be267681abab4a6de40823b574afbe9960

dev-cpp/abseil-cpp/abseil-cpp-20260107.1.ebuild

@@ -0,0 +1,121 @@
+# Copyright 2020-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..14} )
+
+inherit cmake-multilib edo flag-o-matic python-any-r1
+
+DESCRIPTION="Abseil Common Libraries (C++), LTS Branch"
+HOMEPAGE="https://abseil.io/"
+SRC_URI="
+	https://github.com/abseil/abseil-cpp/archive/${PV}.tar.gz -> ${P}.tar.gz
+	https://github.com/abseil/abseil-cpp/commit/28e6a799ba550f8d499bfda5e100d16937804f72.patch
+		-> ${PN}-20260107.0-c++23.patch
+"
+
+LICENSE="Apache-2.0"
+
+# ABI, we want rebuilds to avoid hidden breakage
+SLOT="0/${PV:2:4}.$(ver_cut 2).0-cpp20"
+# SONAME
+# SLOT="0/${PV:2:4}.0.0-cpp20"
+
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~arm64-macos ~x64-macos"
+IUSE="debug test test-helpers"
+
+RDEPEND="
+	test? (
+		dev-cpp/gtest:=[${MULTILIB_USEDEP}]
+	)
+	test-helpers? (
+		dev-cpp/gtest:=[${MULTILIB_USEDEP}]
+	)
+"
+DEPEND="${RDEPEND}"
+BDEPEND="
+	${PYTHON_DEPS}
+	test? (
+		sys-libs/timezone-data
+	)
+"
+
+RESTRICT="!test? ( test )"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-20230802.0-sdata-tests.patch"
+	"${FILESDIR}/${PN}-20240722.0-lto-odr.patch"
+	# https://github.com/abseil/abseil-cpp/issues/1992
+	"${DISTDIR}/${PN}-20260107.0-c++23.patch"
+)
+
+src_prepare() {
+	cmake_src_prepare
+
+	use ppc && eapply "${FILESDIR}/${PN}-atomic.patch"
+
+	# un-hardcode abseil compiler flags
+	# 942192
+	sed -i \
+		-e '/NOMINMAX/d' \
+		absl/copts/copts.py || die
+
+	# now generate cmake files
+	python_fix_shebang absl/copts/generate_copts.py
+	edo absl/copts/generate_copts.py
+}
+
+multilib_src_configure() {
+	append-cxxflags "$(usex debug '-DDEBUG' '-DNDEBUG')"
+
+	if [[ ${ABI} == x86 ]]; then
+		# error: ‘_mm_cvtsi128_si64’ was not declared in this scope
+		# maybe fixed in 4bd9ee20
+		local _CXXFLAGS="${CXXFLAGS}"
+		local CXXFLAGS="${_CXXFLAGS} -mno-aes"
+	fi
+
+	local mycmakeargs=(
+		-DCMAKE_CXX_STANDARD=20
+		-DABSL_ENABLE_INSTALL="yes"
+		-DABSL_USE_EXTERNAL_GOOGLETEST="yes"
+		-DABSL_PROPAGATE_CXX_STD="yes"
+
+		# TEST_HELPERS needed for protobuf (bug #915902)
+		-DABSL_BUILD_TEST_HELPERS="$(usex test-helpers)"
+
+		-DABSL_BUILD_TESTING="$(usex test)"
+	)
+	# intentional use, it requires both variables for tests.
+	# (BUILD_TESTING AND ABSL_BUILD_TESTING)
+	if use test; then
+		mycmakeargs+=(
+			-DBUILD_TESTING="yes"
+		)
+	fi
+
+	cmake_src_configure
+}
+
+multilib_src_test() {
+	if ! use amd64; then
+		CMAKE_SKIP_TESTS=(
+			absl_symbolize_test
+		)
+
+		if use ppc; then
+			CMAKE_SKIP_TESTS+=(
+				absl_failure_signal_handler_test
+			)
+		fi
+	else
+		if ! multilib_is_native_abi; then
+			CMAKE_SKIP_TESTS+=(
+				absl_hash_instantiated_test
+			)
+		fi
+	fi
+
+	cmake_src_test
+}