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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
PYTHON_COMPAT=( python3_{10..12} )
inherit cmake llvm python-single-r1
DESCRIPTION="Find unused include directives in C/C++ programs"
HOMEPAGE="https://include-what-you-use.org/"
SRC_URI="
https://github.com/${PN}/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz
"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~arm64 ~x86"
LLVM_MAX_SLOT=18
RDEPEND="
sys-devel/clang:${LLVM_MAX_SLOT}
sys-devel/llvm:${LLVM_MAX_SLOT}
${PYTHON_DEPS}
"
DEPEND="${RDEPEND}"
REQUIRED_USE="${PYTHON_REQUIRED_USE}"
llvm_check_deps() {
has_version "sys-devel/clang:${LLVM_SLOT}"
}
pkg_setup() {
llvm_pkg_setup
python-single-r1_pkg_setup
}
src_prepare() {
cmake_src_prepare
python_fix_shebang .
}
src_configure() {
local mycmakeargs=(
# Note [llvm install path]
# Unfortunately all binaries using clang driver
# have to reside at the same path depth as
# 'clang' binary itself. See bug #625972
# Thus as a hack we install it to the same directory
# as llvm/clang itself.
-DCMAKE_INSTALL_PREFIX="$(get_llvm_prefix "${LLVM_MAX_SLOT}")"
)
cmake_src_configure
}
src_test() {
local clang_version=$(best_version sys-devel/clang:${LLVM_MAX_SLOT})
clang_version=${clang_version#*/*-} # reduce it to ${PV}-${PR}
clang_version=${clang_version%%[_-]*} # main version without beta/pre/patch/revision
local clang_include_dir_candidates=(
"${ESYSROOT}/usr/lib/clang/${clang_version}/include"
"${ESYSROOT}/usr/lib/clang/${LLVM_MAX_SLOT}/include"
)
local candidate_dir
for candidate_dir in "${clang_include_dir_candidates[@]}"; do
if [[ -d "${candidate_dir}" ]]; then
local clang_include_dir="${candidate_dir}"
break
fi
done
if [[ ! -v clang_include_dir ]]; then
die "Could not infer clang include directory. Candidates: ${clang_include_dir_candidates[*]}"
fi
local -x IWYU_EXTRA_ARGS="-I ${clang_include_dir}"
"${EPYTHON}" run_iwyu_tests.py \
-- "${BUILD_DIR}"/bin/${PN} \
|| die "Tests failed with $? (using ${EPYTHON})"
}
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