# Copyright 2020-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

PYTHON_COMPAT=( python3_{10..12} )

inherit cmake-multilib 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"

LICENSE="Apache-2.0"
SLOT="0/${PV%%.*}.0"
KEYWORDS="amd64 ~arm ~arm64 ~loong ~ppc64 ~riscv x86"
IUSE="test"

RDEPEND=">=dev-cpp/gtest-1.13.0[${MULTILIB_USEDEP}]"
DEPEND="${RDEPEND}"
BDEPEND="
	${PYTHON_DEPS}
	test? (
		sys-libs/timezone-data
	)
"

RESTRICT="!test? ( test )"

PATCHES=(
	"${FILESDIR}"/${PN}-20230125.2-musl-1.2.4.patch #906218
	"${FILESDIR}"/${PN}-random-tests.patch #935417
	"${FILESDIR}/${PN}-20230802.0-conditional-use-of-lzcnt.patch" #934337
)

src_prepare() {
	cmake_src_prepare

	# un-hardcode abseil compiler flags
	sed -i \
		-e '/"-maes",/d' \
		-e '/"-msse4.1",/d' \
		-e '/"-mfpu=neon"/d' \
		-e '/"-march=armv8-a+crypto"/d' \
		absl/copts/copts.py || die

	# now generate cmake files
	python_fix_shebang absl/copts/generate_copts.py
	absl/copts/generate_copts.py || die
}

multilib_src_configure() {
	local mycmakeargs=(
		# We use -std=c++14 here so that abseil-cpp's string_view is used
		# See the discussion in https://github.com/gentoo/gentoo/pull/32281.
		-DCMAKE_CXX_STANDARD=14
		-DABSL_ENABLE_INSTALL=TRUE
		-DABSL_USE_EXTERNAL_GOOGLETEST=ON
		-DABSL_PROPAGATE_CXX_STD=TRUE
		# TEST_HELPERS needed for protobuf (bug #915902)
		-DABSL_BUILD_TEST_HELPERS=ON
		-DABSL_BUILD_TESTING=$(usex test ON OFF)
		$(usex test -DBUILD_TESTING=ON '') # intentional usex, it used both variables for tests.
	)

	cmake_src_configure
}