gentoo auto-resync : 10:01:2024 - 13:02:42

1 files changed, 646 insertions, 0 deletions

diff --git a/media-libs/opencv/opencv-4.8.1-r1.ebuild b/media-libs/opencv/opencv-4.8.1-r1.ebuild
new file mode 100644
index 000000000000..643ae918665e
--- /dev/null
+++ b/media-libs/opencv/opencv-4.8.1-r1.ebuild
@@ -0,0 +1,646 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..12} )
+inherit cuda java-pkg-opt-2 java-ant-2 cmake-multilib flag-o-matic python-r1 toolchain-funcs
+
+DESCRIPTION="A collection of algorithms and sample code for various computer vision problems"
+HOMEPAGE="https://opencv.org"
+
+ADE_PV="0.1.2a" # branch master
+QRCODE_COMMIT="a8b69ccc738421293254aec5ddb38bd523503252" # branch wechat_qrcode_20210119
+DNN_SAMPLES_FACE_DETECTOR_COMMIT="b2bfc75f6aea5b1f834ff0f0b865a7c18ff1459f" # branch dnn_samples_face_detector_20170830
+XFEATURES2D_BOOSTDESC_COMMIT="34e4206aef44d50e6bbcd0ab06354b52e7466d26" # branch contrib_xfeatures2d_boostdesc_20161012
+XFEATURES2D_VGG_COMMIT="fccf7cd6a4b12079f73bbfb21745f9babcd4eb1d" # branch contrib_xfeatures2d_vgg_20160317
+FACE_ALIGNMENT_COMMIT="8afa57abc8229d611c4937165d20e2a2d9fc5a12" # branch contrib_face_alignment_20170818
+NVIDIA_OPTICAL_FLOW_COMMIT="edb50da3cf849840d680249aa6dbef248ebce2ca" # branch nvof_2_0_bsd
+
+SRC_URI="https://github.com/${PN}/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz
+	https://github.com/opencv/ade/archive/v${ADE_PV}.tar.gz -> ade-${ADE_PV}.tar.gz
+	contrib? (
+		https://github.com/${PN}/${PN}_contrib/archive/${PV}.tar.gz -> ${P}_contrib.tar.gz
+		dnnsamples? (
+			https://github.com/${PN}/${PN}_3rdparty/archive/${QRCODE_COMMIT}.tar.gz -> ${PN}_3rdparty-${QRCODE_COMMIT}.tar.gz
+			https://github.com/${PN}/${PN}_3rdparty/archive/${DNN_SAMPLES_FACE_DETECTOR_COMMIT}.tar.gz
+			 -> ${PN}_3rdparty-${DNN_SAMPLES_FACE_DETECTOR_COMMIT}.tar.gz
+		)
+		contribxfeatures2d? (
+			https://github.com/${PN}/${PN}_3rdparty/archive/${XFEATURES2D_BOOSTDESC_COMMIT}.tar.gz
+			 -> ${PN}_3rdparty-${XFEATURES2D_BOOSTDESC_COMMIT}.tar.gz
+			https://github.com/${PN}/${PN}_3rdparty/archive/${XFEATURES2D_VGG_COMMIT}.tar.gz
+			 -> ${PN}_3rdparty-${XFEATURES2D_VGG_COMMIT}.tar.gz
+		)
+		contribdnn? (
+			https://github.com/${PN}/${PN}_3rdparty/archive/${FACE_ALIGNMENT_COMMIT}.tar.gz
+			 -> ${PN}_3rdparty-${FACE_ALIGNMENT_COMMIT}.tar.gz
+		)
+		cuda? (
+			https://github.com/NVIDIA/NVIDIAOpticalFlowSDK/archive/${NVIDIA_OPTICAL_FLOW_COMMIT}.tar.gz
+			 -> NVIDIAOpticalFlowSDK-${NVIDIA_OPTICAL_FLOW_COMMIT}.tar.gz
+		)
+	)
+"
+
+LICENSE="Apache-2.0"
+SLOT="0/${PV}" # subslot = libopencv* soname version
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~x86"
+IUSE="contrib contribcvv contribdnn contribfreetype contribhdf contribovis contribsfm contribxfeatures2d cuda cudnn debug dnnsamples +eigen examples +features2d ffmpeg gdal gflags glog gphoto2 gstreamer gtk3 ieee1394 jpeg jpeg2k lapack non-free opencl openexr opengl openmp opencvapps png +python qt5 qt6 tesseract testprograms tbb tiff vaapi v4l vtk webp xine video_cards_intel"
+
+# The following lines are shamelessly stolen from ffmpeg-9999.ebuild with modifications
+ARM_CPU_FEATURES=(
+	cpu_flags_arm_neon:NEON
+	cpu_flags_arm_vfpv3:VFPV3
+)
+PPC_CPU_FEATURES=(
+	cpu_flags_ppc_vsx:VSX
+	cpu_flags_ppc_vsx3:VSX3
+)
+X86_CPU_FEATURES_RAW=(
+	sse:SSE
+	sse2:SSE2
+	sse3:SSE3
+	ssse3:SSSE3
+	sse4_1:SSE4_1
+	popcnt:POPCNT
+	sse4_2:SSE4_2
+	f16c:FP16
+	fma3:FMA3
+	avx:AVX
+	avx2:AVX2
+	avx512f:AVX_512F
+)
+X86_CPU_FEATURES=( ${X86_CPU_FEATURES_RAW[@]/#/cpu_flags_x86_} )
+CPU_FEATURES_MAP=(
+	${ARM_CPU_FEATURES[@]}
+	${PPC_CPU_FEATURES[@]}
+	${X86_CPU_FEATURES[@]}
+)
+IUSE="${IUSE} ${CPU_FEATURES_MAP[@]%:*}"
+
+# OpenGL needs gtk or Qt installed to activate, otherwise build system
+# will silently disable it without the user knowing, which defeats the
+# purpose of the opengl use flag.
+# cuda needs contrib, bug #701712
+REQUIRED_USE="
+	cpu_flags_x86_avx2? ( cpu_flags_x86_f16c )
+	cpu_flags_x86_f16c? ( cpu_flags_x86_avx )
+	cuda? (
+		contrib
+		tesseract? ( opencl )
+	)
+	cudnn? ( cuda )
+	dnnsamples? ( examples )
+	gflags? ( contrib )
+	glog? ( contrib )
+	contribcvv? ( contrib || ( qt5 qt6 ) )
+	contribdnn? ( contrib )
+	contribfreetype? ( contrib )
+	contribhdf? ( contrib )
+	contribovis? ( contrib )
+	contribsfm? ( contrib eigen gflags glog )
+	contribxfeatures2d? ( contrib )
+	java? ( python )
+	opengl? ( || ( qt5 qt6 ) )
+	python? ( ${PYTHON_REQUIRED_USE} )
+	tesseract? ( contrib )
+	?? ( gtk3 || ( qt5 qt6 ) )
+	?? ( cuda gdal )
+	?? ( cuda openexr )
+	?? ( cuda tbb )
+"
+
+# The following logic is intrinsic in the build system, but we do not enforce
+# it on the useflags since this just blocks emerging pointlessly:
+#	openmp? ( !tbb )
+
+RDEPEND="
+	app-arch/bzip2[${MULTILIB_USEDEP}]
+	<dev-libs/protobuf-23:=[${MULTILIB_USEDEP}]
+	sys-libs/zlib[${MULTILIB_USEDEP}]
+	cuda? ( dev-util/nvidia-cuda-toolkit:0= )
+	cudnn? ( dev-libs/cudnn:= )
+	contribdnn? ( dev-libs/flatbuffers:= )
+	contribhdf? ( sci-libs/hdf5:= )
+	contribfreetype? (
+		media-libs/freetype:2[${MULTILIB_USEDEP}]
+		media-libs/harfbuzz:=[${MULTILIB_USEDEP}]
+	)
+	contribovis? ( >=dev-games/ogre-1.12:= )
+	ffmpeg? ( media-video/ffmpeg:0=[${MULTILIB_USEDEP}] )
+	gdal? ( sci-libs/gdal:= )
+	gflags? ( dev-cpp/gflags:=[${MULTILIB_USEDEP}] )
+	glog? ( dev-cpp/glog:=[${MULTILIB_USEDEP}] )
+	gphoto2? ( media-libs/libgphoto2:=[${MULTILIB_USEDEP}] )
+	gstreamer? (
+		media-libs/gstreamer:1.0[${MULTILIB_USEDEP}]
+		media-libs/gst-plugins-base:1.0[${MULTILIB_USEDEP}]
+	)
+	gtk3? (
+		dev-libs/glib:2[${MULTILIB_USEDEP}]
+		x11-libs/gtk+:3[${MULTILIB_USEDEP}]
+	)
+	ieee1394? (
+		media-libs/libdc1394:=[${MULTILIB_USEDEP}]
+		sys-libs/libraw1394[${MULTILIB_USEDEP}]
+	)
+	java? ( >=virtual/jre-1.8:* )
+	jpeg? ( media-libs/libjpeg-turbo:=[${MULTILIB_USEDEP}] )
+	jpeg2k? ( media-libs/openjpeg:2=[${MULTILIB_USEDEP}] )
+	lapack? (
+		virtual/cblas
+		>=virtual/lapack-3.10
+		virtual/lapacke
+	)
+	opencl? (
+		virtual/opencl[${MULTILIB_USEDEP}]
+		dev-util/opencl-headers
+	)
+	openexr? (
+		dev-libs/imath:=
+		media-libs/openexr:=
+	)
+	opengl? (
+		virtual/opengl[${MULTILIB_USEDEP}]
+		virtual/glu[${MULTILIB_USEDEP}]
+	)
+	png? ( media-libs/libpng:0=[${MULTILIB_USEDEP}] )
+	python? (
+		${PYTHON_DEPS}
+		dev-python/numpy[${PYTHON_USEDEP}]
+	)
+	qt5? (
+		dev-qt/qtgui:5
+		dev-qt/qtwidgets:5
+		dev-qt/qttest:5
+		dev-qt/qtconcurrent:5
+		opengl? ( dev-qt/qtopengl:5 )
+	)
+	!qt5? (
+		qt6? (
+			dev-qt/qtbase:6[gui,widgets,concurrent,opengl?]
+		)
+	)
+	tesseract? ( app-text/tesseract[opencl=,${MULTILIB_USEDEP}] )
+	tbb? ( dev-cpp/tbb:=[${MULTILIB_USEDEP}] )
+	tiff? ( media-libs/tiff:=[${MULTILIB_USEDEP}] )
+	v4l? ( >=media-libs/libv4l-0.8.3[${MULTILIB_USEDEP}] )
+	vaapi? ( media-libs/libva[${MULTILIB_USEDEP}] )
+	vtk? ( sci-libs/vtk:=[rendering,cuda=] )
+	webp? ( media-libs/libwebp:=[${MULTILIB_USEDEP}] )
+	xine? ( media-libs/xine-lib )"
+DEPEND="${RDEPEND}
+	eigen? ( >=dev-cpp/eigen-3.3.8-r1:3 )
+	java? ( >=virtual/jdk-1.8:* )"
+BDEPEND="virtual/pkgconfig"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-3.4.0-disable-download.patch"
+	"${FILESDIR}/${PN}-3.4.1-cuda-add-relaxed-constexpr.patch"
+	"${FILESDIR}/${PN}-4.1.2-opencl-license.patch"
+	"${FILESDIR}/${PN}-4.4.0-disable-native-cpuflag-detect.patch"
+	"${FILESDIR}/${PN}-4.5.0-link-with-cblas-for-lapack.patch"
+	"${FILESDIR}/${PN}-4.8.0-arm64-fp16.patch"
+	"${FILESDIR}/${PN}-4.8.0-fix-cuda-12.2.0.patch"
+
+	"${FILESDIR}/${PN}-4.8.1-use-system-flatbuffers.patch"
+	"${FILESDIR}/${PN}-4.8.1-eliminate-lto-compiler-warnings.patch"
+	"${FILESDIR}/${PN}-4.8.1-python3_12-support.patch"
+
+	"${FILESDIR}/${PN}-4.8.1-use-system-opencl.patch"
+	"${FILESDIR}/${PN}-4.8.1-opencv_test.patch"
+	"${FILESDIR}/${PN}-4.8.1-drop-python2-detection.patch"
+	"${FILESDIR}/${PN}-4.8.1-libpng16.patch"
+	"${FILESDIR}/${PN}-4.8.1-ade-0.1.2a.tar.gz.patch"
+
+	# TODO applied in src_prepare
+	# "${FILESDIR}/${PN}_contrib-${PV}-rgbd.patch"
+	# "${FILESDIR}/${PN}_contrib-4.8.1-NVIDIAOpticalFlowSDK-2.0.tar.gz.patch"
+)
+
+pkg_pretend() {
+	if use cuda && [[ -z "${CUDA_GENERATION}" ]] && [[ -z "${CUDA_ARCH_BIN}" ]]; then
+		einfo "The target CUDA architecture can be set via one of:"
+		einfo "  - CUDA_GENERATION set to one of Maxwell, Pascal, Volta, Turing, Ampere, Lovelace, Hopper, Auto"
+		einfo "  - CUDA_ARCH_BIN, (and optionally CUDA_ARCH_PTX) in the form of x.y tuples."
+		einfo "      You can specify multiple tuple separated by \";\"."
+		einfo ""
+		einfo "The CUDA architecture tuple for your device can be found at https://developer.nvidia.com/cuda-gpus."
+	fi
+
+	if [[ ${MERGE_TYPE} == "buildonly" ]] && [[ -n "${CUDA_GENERATION}" || -n "${CUDA_ARCH_BIN}" ]]; then
+		local info_message="When building a binary package it's recommended to unset CUDA_GENERATION and CUDA_ARCH_BIN"
+		einfo "$info_message so all available architectures are build."
+	fi
+
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+pkg_setup() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+	use java && java-pkg-opt-2_pkg_setup
+}
+
+src_unpack() {
+	unpack $(echo "${A}" | tr ' ' '\n' | grep -vP "(ade-0.1.2|NVIDIAOpticalFlowSDK)")
+}
+
+src_prepare() {
+	if use cuda; then
+		export CUDA_VERBOSE="$(usex debug "true" "false")"
+		cuda_src_prepare
+	fi
+
+	cmake_src_prepare
+
+	# remove bundled stuff
+	rm -r 3rdparty || die "Removing 3rd party components failed"
+	sed -e '/add_subdirectory(.*3rdparty.*)/ d' \
+		-i CMakeLists.txt cmake/*cmake || die
+
+	if use contrib; then
+		cd "${WORKDIR}/${PN}_contrib-${PV}" || die
+		eapply "${FILESDIR}/${PN}_contrib-${PV}-rgbd.patch"
+		eapply "${FILESDIR}/${PN}_contrib-4.8.1-NVIDIAOpticalFlowSDK-2.0.tar.gz.patch"
+		cd "${S}" || die
+
+		! use contribcvv && { rm -R "${WORKDIR}/${PN}_contrib-${PV}/modules/cvv" || die; }
+		# ! use contribdnn && { rm -R "${WORKDIR}/${PN}_contrib-${PV}/modules/dnn" || die; }
+		! use contribfreetype && { rm -R "${WORKDIR}/${PN}_contrib-${PV}/modules/freetype" || die; }
+		! use contribhdf && { rm -R "${WORKDIR}/${PN}_contrib-${PV}/modules/hdf" || die; }
+		! use contribovis && { rm -R "${WORKDIR}/${PN}_contrib-${PV}/modules/ovis" || die; }
+		! use contribsfm && { rm -R "${WORKDIR}/${PN}_contrib-${PV}/modules/sfm" || die; }
+		! use contribxfeatures2d && { rm -R "${WORKDIR}/${PN}_contrib-${PV}/modules/xfeatures2d" || die; }
+	fi
+
+	mkdir -p "${S}/.cache/ade" || die
+	cp \
+		"${DISTDIR}/ade-${ADE_PV}.tar.gz" \
+		"${S}/.cache/ade/$(md5sum "${DISTDIR}/ade-${ADE_PV}.tar.gz" | cut -f 1 -d " ")-v${ADE_PV}.tar.gz" || die
+
+	if use dnnsamples; then
+		mkdir -p "${S}/.cache/wechat_qrcode" || die
+		for file in "detect.caffemodel" "detect.prototxt" "sr.prototxt" "sr.caffemodel"; do
+			mv \
+				"${WORKDIR}/${PN}_3rdparty-${QRCODE_COMMIT}/${file}" \
+				"${S}/.cache/wechat_qrcode/$( \
+					md5sum "${WORKDIR}/${PN}_3rdparty-${QRCODE_COMMIT}/${file}" | cut -f 1 -d " " \
+				)-${file}" || die
+		done
+
+		mv \
+			"${WORKDIR}/${PN}_3rdparty-${DNN_SAMPLES_FACE_DETECTOR_COMMIT}/res10_300x300_ssd_iter_140000.caffemodel" \
+			"${S}/samples/dnn/" || die
+	fi
+
+	if use contribxfeatures2d; then
+		cp \
+			"${WORKDIR}/${PN}_3rdparty-${XFEATURES2D_BOOSTDESC_COMMIT}/"*.i \
+			"${WORKDIR}/${PN}_contrib-${PV}"/modules/xfeatures2d/src/ || die
+		mkdir -p "${S}/.cache/xfeatures2d/boostdesc" || die
+		for file in "${WORKDIR}/${PN}_3rdparty-${XFEATURES2D_BOOSTDESC_COMMIT}/"*.i; do
+			mv \
+				"${WORKDIR}/${PN}_3rdparty-${XFEATURES2D_BOOSTDESC_COMMIT}/$(basename "${file}")" \
+				"${S}/.cache/xfeatures2d/boostdesc/$( \
+					md5sum "${WORKDIR}/${PN}_3rdparty-${XFEATURES2D_BOOSTDESC_COMMIT}/$(basename "${file}")" | cut -f 1 -d " " \
+				)-$(basename "${file}")" || die
+		done
+
+		cp \
+			"${WORKDIR}/${PN}_3rdparty-${XFEATURES2D_VGG_COMMIT}/"*.i \
+			"${WORKDIR}/${PN}_contrib-${PV}"/modules/xfeatures2d/src/ || die
+		mkdir -p "${S}/.cache/xfeatures2d/vgg" || die
+		for file in "${WORKDIR}/${PN}_3rdparty-${XFEATURES2D_VGG_COMMIT}/"*.i; do
+			mv \
+				"${WORKDIR}/${PN}_3rdparty-${XFEATURES2D_VGG_COMMIT}/$(basename "${file}")" \
+				"${S}/.cache/xfeatures2d/vgg/$( \
+					md5sum "${WORKDIR}/${PN}_3rdparty-${XFEATURES2D_VGG_COMMIT}/$(basename "${file}")" | cut -f 1 -d " " \
+				)-$(basename "${file}")" || die
+		done
+	fi
+
+	if use contribdnn; then
+		mkdir -p "${S}/.cache/data" || die
+		for file in "face_landmark_model.dat"; do
+			mv \
+				"${WORKDIR}/${PN}_3rdparty-${FACE_ALIGNMENT_COMMIT}/${file}" \
+				"${S}/.cache/data/$( \
+					md5sum "${WORKDIR}/${PN}_3rdparty-${FACE_ALIGNMENT_COMMIT}/${file}" | cut -f 1 -d " " \
+				)-${file}" || die
+		done
+	fi
+
+	if use cuda; then
+		mkdir -p "${S}/.cache/nvidia_optical_flow"
+		cp \
+			"${DISTDIR}/NVIDIAOpticalFlowSDK-${NVIDIA_OPTICAL_FLOW_COMMIT}.tar.gz" \
+			"${S}/.cache/nvidia_optical_flow/$( \
+				md5sum "${DISTDIR}/NVIDIAOpticalFlowSDK-${NVIDIA_OPTICAL_FLOW_COMMIT}.tar.gz" | cut -f 1 -d " " \
+			)-${NVIDIA_OPTICAL_FLOW_COMMIT}.tar.gz" || die
+	fi
+
+	if use java; then
+		java-pkg-opt-2_src_prepare
+
+		# this really belongs in src_prepare() too
+		JAVA_ANT_ENCODING="iso-8859-1"
+		# set encoding so even this cmake build will pick it up.
+		export ANT_OPTS+=" -Dfile.encoding=iso-8859-1"
+	fi
+}
+
+multilib_src_configure() {
+	# bug #919101 and https://github.com/opencv/opencv/issues/19020
+	filter-lto
+
+	# please dont sort here, order is the same as in CMakeLists.txt
+	local mycmakeargs=(
+		-DMIN_VER_CMAKE=3.26
+
+		-DCMAKE_POLICY_DEFAULT_CMP0146="OLD" # FindCUDA
+		-DCMAKE_POLICY_DEFAULT_CMP0148="OLD" # FindPythonInterp
+
+		# for protobuf
+		-DCMAKE_CXX_STANDARD=14
+
+	# Optional 3rd party components
+	# ===================================================
+		-DENABLE_DOWNLOAD=yes
+		-DOPENCV_ENABLE_NONFREE=$(usex non-free)
+		-DWITH_QUIRC=OFF # Do not have dependencies
+		-DWITH_FLATBUFFERS=$(usex contribdnn)
+		-DWITH_1394=$(usex ieee1394)
+	#	-DWITH_AVFOUNDATION=OFF # IOS
+		-DWITH_VTK=$(multilib_native_usex vtk)
+		-DWITH_EIGEN=$(usex eigen)
+		-DWITH_VFW=OFF # Video windows support
+		-DWITH_FFMPEG=$(usex ffmpeg)
+		-DWITH_GSTREAMER=$(usex gstreamer)
+		-DWITH_GSTREAMER_0_10=OFF	# Don't want this
+		-DWITH_GTK=$(usex gtk3)
+		-DWITH_GTK_2_X=OFF # only want gtk3 nowadays
+		-DWITH_IPP=OFF
+		# Jasper was removed from tree because of security problems.
+		# Upstream were/are making progress. We use openjpeg instead.
+		# bug 734284
+		-DWITH_JASPER=OFF
+		-DWITH_JPEG=$(usex jpeg)
+		-DWITH_OPENJPEG=$(usex jpeg2k)
+		-DWITH_WEBP=$(usex webp)
+		-DWITH_OPENEXR=$(multilib_native_usex openexr)
+		-DWITH_OPENGL=$(usex opengl)
+		-DOpenGL_GL_PREFERENCE="GLVND"
+		-DWITH_OPENVX=OFF
+		-DWITH_OPENNI=OFF	# Not packaged
+		-DWITH_OPENNI2=OFF	# Not packaged
+		-DWITH_PNG=$(usex png)
+		-DWITH_GDCM=OFF
+		-DWITH_PVAPI=OFF
+		-DWITH_GIGEAPI=OFF
+		-DWITH_ARAVIS=OFF
+		-DWITH_WIN32UI=OFF		# Windows only
+	#	-DWITH_QUICKTIME=OFF
+	#	-DWITH_QTKIT=OFF
+		-DWITH_TBB=$(usex tbb)
+		-DWITH_OPENMP=$(usex !tbb $(usex openmp))
+		-DWITH_CSTRIPES=OFF
+		-DWITH_PTHREADS_PF=ON
+		-DWITH_TIFF=$(usex tiff)
+		-DWITH_UNICAP=OFF		# Not packaged
+		-DWITH_V4L=$(usex v4l)
+		-DWITH_LIBV4L=$(usex v4l)
+	#	-DWITH_DSHOW=ON			# direct show supp
+		-DWITH_MSMF=OFF
+		-DWITH_XIMEA=OFF	# Windows only
+		-DWITH_XINE=$(multilib_native_usex xine)
+		-DWITH_CLP=OFF
+		-DWITH_OPENCL=$(usex opencl)
+		-DWITH_OPENCL_SVM=OFF
+		-DWITH_OPENCLAMDFFT=$(usex opencl)
+		-DWITH_OPENCLAMDBLAS=$(usex opencl)
+		-DWITH_DIRECTX=OFF
+		-DWITH_INTELPERC=OFF
+		-DWITH_IPP_A=OFF
+		-DWITH_MATLAB=OFF
+		-DWITH_VA=$(usex vaapi)
+		-DWITH_VA_INTEL=$(usex vaapi $(usex video_cards_intel))
+		-DWITH_GDAL=$(multilib_native_usex gdal)
+		-DWITH_GPHOTO2=$(usex gphoto2)
+		-DWITH_LAPACK=$(multilib_native_usex lapack)
+		-DWITH_ITT=OFF # 3dparty libs itt_notify
+	# ===================================================
+	# CUDA build components: nvidia-cuda-toolkit
+	# ===================================================
+		-DWITH_CUDA=$(multilib_native_usex cuda)
+		-DWITH_CUBLAS=$(multilib_native_usex cuda)
+		-DWITH_CUFFT=$(multilib_native_usex cuda)
+		-DWITH_CUDNN=$(multilib_native_usex cudnn)
+		-DWITH_NVCUVID="no"
+		-DCUDA_NPP_LIBRARY_ROOT_DIR=$(usex cuda "${EPREFIX}/opt/cuda" "")
+	# ===================================================
+	# OpenCV build components
+	# ===================================================
+		-DBUILD_SHARED_LIBS=ON
+		-DBUILD_JAVA=$(multilib_native_usex java) # Ant needed, no compile flag
+		-DBUILD_ANDROID_EXAMPLES=OFF
+		-DBUILD_opencv_apps=$(usex opencvapps ON OFF)
+		-DBUILD_DOCS=OFF # Doesn't install anyways.
+		-DBUILD_EXAMPLES=$(multilib_native_usex examples)
+		-DBUILD_PERF_TESTS=OFF
+		-DBUILD_TESTS=$(multilib_native_usex testprograms)
+		-DBUILD_WITH_DEBUG_INFO=$(usex debug)
+		-DOPENCV_ENABLE_MEMORY_SANITIZER=$(usex debug)
+	#	-DBUILD_WITH_STATIC_CRT=OFF
+		-DBUILD_WITH_DYNAMIC_IPP=OFF
+		-DBUILD_FAT_JAVA_LIB=OFF
+	#	-DBUILD_ANDROID_SERVICE=OFF
+		-DBUILD_CUDA_STUBS=$(multilib_native_usex cuda)
+		-DOPENCV_EXTRA_MODULES_PATH=$(usex contrib "${WORKDIR}/${PN}_contrib-${PV}/modules" "")
+	# ===================================================
+	# OpenCV installation options
+	# ===================================================
+		-DINSTALL_CREATE_DISTRIB=OFF
+		-DINSTALL_C_EXAMPLES=$(multilib_native_usex examples)
+		-DINSTALL_TESTS=$(multilib_native_usex testprograms)
+		-DINSTALL_PYTHON_EXAMPLES=$(multilib_native_usex examples)
+	#	-DINSTALL_ANDROID_EXAMPLES=OFF
+		-DINSTALL_TO_MANGLED_PATHS=OFF
+		-DOPENCV_GENERATE_PKGCONFIG=ON
+		# opencv uses both ${CMAKE_INSTALL_LIBDIR} and ${LIB_SUFFIX}
+		# to set its destination libdir
+		-DLIB_SUFFIX=
+	# ===================================================
+	# OpenCV build options
+	# ===================================================
+		-DENABLE_CCACHE=OFF
+		# bug 733796, but PCH is a risky game in CMake anyway
+		-DENABLE_PRECOMPILED_HEADERS=OFF
+		-DENABLE_SOLUTION_FOLDERS=OFF
+		-DENABLE_PROFILING=OFF
+		-DENABLE_COVERAGE=OFF
+
+		-DHAVE_opencv_java=$(multilib_native_usex java YES NO)
+		-DENABLE_NOISY_WARNINGS=OFF
+		-DOPENCV_WARNINGS_ARE_ERRORS=OFF
+		-DENABLE_IMPL_COLLECTION=OFF
+		-DENABLE_INSTRUMENTATION=OFF
+		-DGENERATE_ABI_DESCRIPTOR=OFF
+		-DDOWNLOAD_EXTERNAL_TEST_DATA=OFF
+	# ===================================================
+	# things we want to be hard off or not yet figured out
+	# ===================================================
+		-DBUILD_PACKAGE=OFF
+	# ===================================================
+	# Not building protobuf but update files bug #631418
+	# ===================================================
+		-DWITH_PROTOBUF=ON
+		-DBUILD_PROTOBUF=OFF
+		-DPROTOBUF_UPDATE_FILES=ON
+		-DProtobuf_MODULE_COMPATIBLE=ON
+	# ===================================================
+	# things we want to be hard enabled not worth useflag
+	# ===================================================
+		-DCMAKE_SKIP_RPATH=ON
+		-DOPENCV_DOC_INSTALL_PATH=
+		-DBUILD_opencv_features2d=$(usex features2d ON OFF)
+	)
+
+	if use qt5; then
+		mycmakeargs+=(
+			-DWITH_QT=$(multilib_native_usex qt5 ON OFF)
+			-DCMAKE_DISABLE_FIND_PACKAGE_Qt6=ON
+		)
+	elif use qt6; then
+		mycmakeargs+=(
+			-DWITH_QT=$(multilib_native_usex qt6 ON OFF)
+			-DCMAKE_DISABLE_FIND_PACKAGE_Qt5=ON
+		)
+	else
+		mycmakeargs+=(
+			-DWITH_QT=OFF
+			-DCMAKE_DISABLE_FIND_PACKAGE_Qt5=ON
+			-DCMAKE_DISABLE_FIND_PACKAGE_Qt6=ON
+		)
+	fi
+
+	# ==================================================
+	# cpu flags, should solve 633900
+	#===================================================
+	local CPU_BASELINE=""
+	for i in "${CPU_FEATURES_MAP[@]}" ; do
+		if [[ ${ABI} != x86 || ${i%:*} != "cpu_flags_x86_avx2" ]]; then # workaround for Bug 747163
+			use ${i%:*} && CPU_BASELINE="${CPU_BASELINE}${i#*:};"
+		fi
+	done
+
+	mycmakeargs+=(
+		-DOPENCV_CPU_OPT_IMPLIES_IGNORE=ON
+		-DCPU_BASELINE="${CPU_BASELINE}"
+		-DCPU_DISPATCH=
+	)
+
+	# ===================================================
+	# OpenCV Contrib Modules
+	# ===================================================
+	if use contrib; then
+		mycmakeargs+=(
+			-DBUILD_opencv_dnn=$(usex contribdnn ON OFF)
+			-DBUILD_opencv_xfeatures2d=$(usex contribxfeatures2d ON OFF)
+			-DBUILD_opencv_cvv=$(usex contribcvv ON OFF)
+			-DBUILD_opencv_hdf=$(multilib_native_usex contribhdf ON OFF)
+			-DBUILD_opencv_sfm=$(usex contribsfm ON OFF)
+			-DBUILD_opencv_freetype=$(usex contribfreetype ON OFF)
+			-DBUILD_opencv_ovis=$(usex contribovis ON OFF)
+		)
+
+		if multilib_is_native_abi; then
+			mycmakeargs+=(
+				-DCMAKE_DISABLE_FIND_PACKAGE_Tesseract=$(usex !tesseract)
+			)
+		else
+			mycmakeargs+=(
+				-DCMAKE_DISABLE_FIND_PACKAGE_Tesseract=ON
+			)
+		fi
+	fi
+
+	# workaround for bug 413429
+	tc-export CC CXX
+
+	if use cuda; then
+		cuda_add_sandbox -w
+
+		if [[ -n "${CUDA_GENERATION}" ]]; then
+			mycmakeargs+=(
+				-DCUDA_GENERATION="${CUDA_GENERATION}"
+			)
+		fi
+
+		if [[ -n "${CUDA_ARCH_BIN}" ]]; then
+				mycmakeargs+=(
+					-DCUDA_ARCH_BIN="${CUDA_ARCH_BIN}"
+				)
+
+			if [[ -n "${CUDA_ARCH_PTX}" ]]; then
+				mycmakeargs+=(
+					-DCUDA_ARCH_PTX="${CUDA_ARCH_PTX}"
+				)
+			fi
+		fi
+
+		local NVCCFLAGS_OpenCV="${NVCCFLAGS// /\;}"
+		mycmakeargs+=(
+			-DOPENCV_CUDA_DETECTION_NVCC_FLAGS="-ccbin=$(cuda_gccdir)"
+			-DCUDA_NVCC_FLAGS="-forward-unknown-opts;${NVCCFLAGS_OpenCV//\"/}"
+		)
+
+		use vtk && mycmakeargs+=(
+			-DCMAKE_CUDA_FLAGS="-forward-unknown-opts ${NVCCFLAGS//\;/ }"
+		)
+	fi
+
+	if multilib_is_native_abi && use python; then
+		python_configure() {
+			# Set all python variables to load the correct Gentoo paths
+			local mycmakeargs=(
+				"${mycmakeargs[@]}"
+				# python_setup alters PATH and sets this as wrapper
+				# to the correct interpreter we are building for
+				-DPYTHON_DEFAULT_EXECUTABLE="${EPYTHON}"
+				-DINSTALL_PYTHON_EXAMPLES="$(usex examples)"
+			)
+			cmake_src_configure
+			use java && java-ant-2_src_configure
+		}
+
+		python_foreach_impl python_configure
+	else
+		mycmakeargs+=(
+			-DPYTHON_EXECUTABLE=OFF
+			-DINSTALL_PYTHON_EXAMPLES=OFF
+			-DBUILD_opencv_python2=OFF
+			-DBUILD_opencv_python3=OFF
+		)
+		cmake_src_configure
+		use java && java-ant-2_src_configure
+	fi
+
+}
+
+multilib_src_compile() {
+	if multilib_is_native_abi && use python; then
+		python_foreach_impl cmake_src_compile
+	else
+		cmake_src_compile
+	fi
+}
+
+multilib_src_install() {
+	if multilib_is_native_abi && use python; then
+		python_foreach_impl cmake_src_install
+		python_foreach_impl python_optimize
+	else
+		cmake_src_install
+	fi
+}