full build log

opencv-build.log (text/x-log), 54.64 KB, created by Anton Kochkov on 2020-10-12 08:45:14 UTC

[32;01m * [39;49;00mPackage:    media-libs/opencv-4.4.0-r1
[32;01m * [39;49;00mRepository: gentoo
[32;01m * [39;49;00mMaintainer: [e-mail]
[32;01m * [39;49;00mUSE:        abi_x86_64 amd64 cpu_flags_x86_sse cpu_flags_x86_sse2 eigen elibc_glibc features2d kernel_linux openmp python python_targets_python3_7 userland_GNU
[32;01m * [39;49;00mFEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking opencv-4.4.0.tar.gz to /var/tmp/portage/media-libs/opencv-4.4.0-r1/work
>>> Source unpacked in /var/tmp/portage/media-libs/opencv-4.4.0-r1/work
>>> Preparing source in /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0 ...
 [32;01m*[0m Applying opencv-3.4.0-disable-download.patch ...
patching file CMakeLists.txt
Hunk #1 succeeded at 204 with fuzz 1 (offset 17 lines).
patching file cmake/OpenCVDownload.cmake
Hunk #1 succeeded at 38 with fuzz 1 (offset 6 lines).
Hunk #2 succeeded at 252 (offset 15 lines).
[A[229C [34;01m[ [32;01mok[34;01m ][0m
 [32;01m*[0m Applying opencv-3.4.1-cuda-add-relaxed-constexpr.patch ...
[A[229C [34;01m[ [32;01mok[34;01m ][0m
 [32;01m*[0m Applying opencv-4.1.2-opencl-license.patch ...
[A[229C [34;01m[ [32;01mok[34;01m ][0m
 [32;01m*[0m Applying opencv-4.4.0-disable-native-cpuflag-detect.patch ...
[A[229C [34;01m[ [32;01mok[34;01m ][0m
 [32;01m*[0m Working in BUILD_DIR: "/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build"
 [32;01m*[0m Hardcoded definition(s) removed in CMakeLists.txt:
 [32;01m*[0m        set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "Inst
 [32;01m*[0m        set(CMAKE_INSTALL_PREFIX "/usr/local" CACHE PATH "Installation Director
 [32;01m*[0m      set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "Instal
 [32;01m*[0m    set(CMAKE_BUILD_TYPE Release)
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0 ...
 [32;01m*[0m abi_x86_64.amd64: running multilib-minimal_abi_src_configure
 [32;01m*[0m Working in BUILD_DIR: "/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64"
cmake -C /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64/gentoo_common_config.cmake -G Ninja -DCMAKE_INSTALL_PREFIX=/usr -DENABLE_DOWNLOAD=no -DWITH_QUIRC=OFF -DWITH_1394=no -DWITH_VTK=no -DWITH_EIGEN=yes -DWITH_VFW=OFF -DWITH_FFMPEG=no -DWITH_GSTREAMER=no -DWITH_GSTREAMER_0_10=OFF -DWITH_GTK=no -DWITH_GTK_2_X=OFF -DWITH_IPP=OFF -DWITH_JASPER=OFF -DWITH_JPEG=no -DWITH_OPENJPEG=no -DWITH_WEBP=no -DWITH_OPENEXR=no -DWITH_OPENGL=no -DWITH_OPENVX=OFF -DWITH_OPENNI=OFF -DWITH_OPENNI2=OFF -DWITH_PNG=no -DWITH_GDCM=OFF -DWITH_PVAPI=OFF -DWITH_GIGEAPI=OFF -DWITH_ARAVIS=OFF -DWITH_QT=OFF -DWITH_WIN32UI=OFF -DWITH_TBB=no -DWITH_OPENMP=yes -DWITH_CSTRIPES=OFF -DWITH_PTHREADS_PF=ON -DWITH_TIFF=no -DWITH_UNICAP=OFF -DWITH_V4L=no -DWITH_LIBV4L=no -DWITH_MSMF=OFF -DWITH_XIMEA=OFF -DWITH_XINE=no -DWITH_CLP=OFF -DWITH_OPENCL=no -DWITH_OPENCL_SVM=OFF -DWITH_OPENCLAMDFFT=no -DWITH_OPENCLAMDBLAS=no -DWITH_DIRECTX=OFF -DWITH_INTELPERC=OFF -DWITH_IPP_A=OFF -DWITH_MATLAB=OFF -DWITH_VA=no -DWITH_VA_INTEL=no -DWITH_GDAL=no -DWITH_GPHOTO2=no -DWITH_LAPACK=no -DWITH_ITT=OFF -DWITH_CUDA=no -DWITH_CUBLAS=no -DWITH_CUFFT=no -DWITH_NVCUVID=OFF -DCUDA_NPP_LIBRARY_ROOT_DIR= -DBUILD_SHARED_LIBS=ON -DBUILD_JAVA=no -DBUILD_ANDROID_EXAMPLES=OFF -DBUILD_opencv_apps=OFF -DBUILD_DOCS=OFF -DBUILD_EXAMPLES=no -DBUILD_PERF_TESTS=OFF -DBUILD_TESTS=no -DBUILD_WITH_DEBUG_INFO=no -DBUILD_WITH_DYNAMIC_IPP=OFF -DBUILD_FAT_JAVA_LIB=OFF -DBUILD_CUDA_STUBS=no -DOPENCV_EXTRA_MODULES_PATH= -DINSTALL_CREATE_DISTRIB=OFF -DINSTALL_C_EXAMPLES=no -DINSTALL_TESTS=no -DINSTALL_PYTHON_EXAMPLES=no -DINSTALL_TO_MANGLED_PATHS=OFF -DOPENCV_GENERATE_PKGCONFIG=ON -DLIB_SUFFIX= -DENABLE_CCACHE=OFF -DENABLE_PRECOMPILED_HEADERS=OFF -DENABLE_SOLUTION_FOLDERS=OFF -DENABLE_PROFILING=OFF -DENABLE_COVERAGE=OFF -DHAVE_opencv_java=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 -DENABLE_LTO=no -DBUILD_PACKAGE=OFF -DBUILD_PROTOBUF=OFF -DPROTOBUF_UPDATE_FILES=ON -DCMAKE_SKIP_RPATH=ON -DOPENCV_DOC_INSTALL_PATH= -DBUILD_opencv_features2d=ON -DOPENCV_CPU_OPT_IMPLIES_IGNORE=ON -DCPU_BASELINE=SSE;SSE2; -DCPU_DISPATCH= -DPYTHON_EXECUTABLE=OFF -DINSTALL_PYTHON_EXAMPLES=OFF -DBUILD_opencv_python2=OFF -DBUILD_opencv_python3=OFF -DCMAKE_BUILD_TYPE=Gentoo -DCMAKE_TOOLCHAIN_FILE=/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64/gentoo_toolchain.cmake  /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0
loading initial cache file /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64/gentoo_common_config.cmake
-- The CXX compiler identification is GNU 9.3.0
-- The C compiler identification is GNU 9.3.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/x86_64-pc-linux-gnu-g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/x86_64-pc-linux-gnu-gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detected processor: x86_64
-- Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at least version "2.7")
-- Could NOT find PythonInterp: Found unsuitable version "2.7.18", but required is at least "3.2" (found /usr/bin/python)
-- Performing Test HAVE_CXX_FSIGNED_CHAR
-- Performing Test HAVE_CXX_FSIGNED_CHAR - Success
-- Performing Test HAVE_C_FSIGNED_CHAR
-- Performing Test HAVE_C_FSIGNED_CHAR - Success
-- Performing Test HAVE_CXX_W
-- Performing Test HAVE_CXX_W - Success
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-- Performing Test HAVE_CXX_WALL - Success
-- Performing Test HAVE_C_WALL
-- Performing Test HAVE_C_WALL - Success
-- Performing Test HAVE_CXX_WERROR_RETURN_TYPE
-- Performing Test HAVE_CXX_WERROR_RETURN_TYPE - Success
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-- Performing Test HAVE_C_WERROR_RETURN_TYPE - Success
-- Performing Test HAVE_CXX_WERROR_NON_VIRTUAL_DTOR
-- Performing Test HAVE_CXX_WERROR_NON_VIRTUAL_DTOR - Success
-- Performing Test HAVE_C_WERROR_NON_VIRTUAL_DTOR
-- Performing Test HAVE_C_WERROR_NON_VIRTUAL_DTOR - Failed
-- Performing Test HAVE_CXX_WERROR_ADDRESS
-- Performing Test HAVE_CXX_WERROR_ADDRESS - Success
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-- Performing Test HAVE_C_WERROR_ADDRESS - Success
-- Performing Test HAVE_CXX_WERROR_SEQUENCE_POINT
-- Performing Test HAVE_CXX_WERROR_SEQUENCE_POINT - Success
-- Performing Test HAVE_C_WERROR_SEQUENCE_POINT
-- Performing Test HAVE_C_WERROR_SEQUENCE_POINT - Success
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-- Performing Test HAVE_CXX_WFORMAT - Success
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-- Performing Test HAVE_C_WFORMAT - Success
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-- Performing Test HAVE_CXX_WERROR_FORMAT_SECURITY - Success
-- Performing Test HAVE_C_WERROR_FORMAT_SECURITY
-- Performing Test HAVE_C_WERROR_FORMAT_SECURITY - Success
-- Performing Test HAVE_CXX_WMISSING_DECLARATIONS
-- Performing Test HAVE_CXX_WMISSING_DECLARATIONS - Success
-- Performing Test HAVE_C_WMISSING_DECLARATIONS
-- Performing Test HAVE_C_WMISSING_DECLARATIONS - Success
-- Performing Test HAVE_CXX_WMISSING_PROTOTYPES
-- Performing Test HAVE_CXX_WMISSING_PROTOTYPES - Failed
-- Performing Test HAVE_C_WMISSING_PROTOTYPES
-- Performing Test HAVE_C_WMISSING_PROTOTYPES - Success
-- Performing Test HAVE_CXX_WSTRICT_PROTOTYPES
-- Performing Test HAVE_CXX_WSTRICT_PROTOTYPES - Failed
-- Performing Test HAVE_C_WSTRICT_PROTOTYPES
-- Performing Test HAVE_C_WSTRICT_PROTOTYPES - Success
-- Performing Test HAVE_CXX_WUNDEF
-- Performing Test HAVE_CXX_WUNDEF - Success
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-- Performing Test HAVE_C_WUNDEF - Success
-- Performing Test HAVE_CXX_WINIT_SELF
-- Performing Test HAVE_CXX_WINIT_SELF - Success
-- Performing Test HAVE_C_WINIT_SELF
-- Performing Test HAVE_C_WINIT_SELF - Success
-- Performing Test HAVE_CXX_WPOINTER_ARITH
-- Performing Test HAVE_CXX_WPOINTER_ARITH - Success
-- Performing Test HAVE_C_WPOINTER_ARITH
-- Performing Test HAVE_C_WPOINTER_ARITH - Success
-- Performing Test HAVE_CXX_WSHADOW
-- Performing Test HAVE_CXX_WSHADOW - Success
-- Performing Test HAVE_C_WSHADOW
-- Performing Test HAVE_C_WSHADOW - Success
-- Performing Test HAVE_CXX_WSIGN_PROMO
-- Performing Test HAVE_CXX_WSIGN_PROMO - Success
-- Performing Test HAVE_C_WSIGN_PROMO
-- Performing Test HAVE_C_WSIGN_PROMO - Failed
-- Performing Test HAVE_CXX_WUNINITIALIZED
-- Performing Test HAVE_CXX_WUNINITIALIZED - Success
-- Performing Test HAVE_C_WUNINITIALIZED
-- Performing Test HAVE_C_WUNINITIALIZED - Success
-- Performing Test HAVE_CXX_WSUGGEST_OVERRIDE
-- Performing Test HAVE_CXX_WSUGGEST_OVERRIDE - Success
-- Performing Test HAVE_C_WSUGGEST_OVERRIDE
-- Performing Test HAVE_C_WSUGGEST_OVERRIDE - Failed
-- Performing Test HAVE_CXX_WNO_DELETE_NON_VIRTUAL_DTOR
-- Performing Test HAVE_CXX_WNO_DELETE_NON_VIRTUAL_DTOR - Success
-- Performing Test HAVE_C_WNO_DELETE_NON_VIRTUAL_DTOR
-- Performing Test HAVE_C_WNO_DELETE_NON_VIRTUAL_DTOR - Failed
-- Performing Test HAVE_CXX_WNO_UNNAMED_TYPE_TEMPLATE_ARGS
-- Performing Test HAVE_CXX_WNO_UNNAMED_TYPE_TEMPLATE_ARGS - Failed
-- Performing Test HAVE_C_WNO_UNNAMED_TYPE_TEMPLATE_ARGS
-- Performing Test HAVE_C_WNO_UNNAMED_TYPE_TEMPLATE_ARGS - Failed
-- Performing Test HAVE_CXX_WNO_COMMENT
-- Performing Test HAVE_CXX_WNO_COMMENT - Success
-- Performing Test HAVE_C_WNO_COMMENT
-- Performing Test HAVE_C_WNO_COMMENT - Success
-- Performing Test HAVE_CXX_WIMPLICIT_FALLTHROUGH_3
-- Performing Test HAVE_CXX_WIMPLICIT_FALLTHROUGH_3 - Success
-- Performing Test HAVE_C_WIMPLICIT_FALLTHROUGH_3
-- Performing Test HAVE_C_WIMPLICIT_FALLTHROUGH_3 - Success
-- Performing Test HAVE_CXX_WNO_STRICT_OVERFLOW
-- Performing Test HAVE_CXX_WNO_STRICT_OVERFLOW - Success
-- Performing Test HAVE_C_WNO_STRICT_OVERFLOW
-- Performing Test HAVE_C_WNO_STRICT_OVERFLOW - Success
-- Performing Test HAVE_CXX_FDIAGNOSTICS_SHOW_OPTION
-- Performing Test HAVE_CXX_FDIAGNOSTICS_SHOW_OPTION - Success
-- Performing Test HAVE_C_FDIAGNOSTICS_SHOW_OPTION
-- Performing Test HAVE_C_FDIAGNOSTICS_SHOW_OPTION - Success
-- Performing Test HAVE_CXX_WNO_LONG_LONG
-- Performing Test HAVE_CXX_WNO_LONG_LONG - Success
-- Performing Test HAVE_C_WNO_LONG_LONG
-- Performing Test HAVE_C_WNO_LONG_LONG - Success
-- Performing Test HAVE_CXX_PTHREAD
-- Performing Test HAVE_CXX_PTHREAD - Success
-- Performing Test HAVE_C_PTHREAD
-- Performing Test HAVE_C_PTHREAD - Success
-- Performing Test HAVE_CXX_FOMIT_FRAME_POINTER
-- Performing Test HAVE_CXX_FOMIT_FRAME_POINTER - Success
-- Performing Test HAVE_C_FOMIT_FRAME_POINTER
-- Performing Test HAVE_C_FOMIT_FRAME_POINTER - Success
-- Performing Test HAVE_CXX_FFUNCTION_SECTIONS
-- Performing Test HAVE_CXX_FFUNCTION_SECTIONS - Success
-- Performing Test HAVE_C_FFUNCTION_SECTIONS
-- Performing Test HAVE_C_FFUNCTION_SECTIONS - Success
-- Performing Test HAVE_CXX_FDATA_SECTIONS
-- Performing Test HAVE_CXX_FDATA_SECTIONS - Success
-- Performing Test HAVE_C_FDATA_SECTIONS
-- Performing Test HAVE_C_FDATA_SECTIONS - Success
-- Performing Test HAVE_CXX_MSSE (check file: cmake/checks/cpu_sse.cpp)
-- Performing Test HAVE_CXX_MSSE - Success
-- Performing Test HAVE_CXX_MSSE2 (check file: cmake/checks/cpu_sse2.cpp)
-- Performing Test HAVE_CXX_MSSE2 - Success
-- Performing Test HAVE_CPU_BASELINE_FLAGS
-- Performing Test HAVE_CPU_BASELINE_FLAGS - Success
-- Performing Test HAVE_CXX_FVISIBILITY_HIDDEN
-- Performing Test HAVE_CXX_FVISIBILITY_HIDDEN - Success
-- Performing Test HAVE_C_FVISIBILITY_HIDDEN
-- Performing Test HAVE_C_FVISIBILITY_HIDDEN - Success
-- Performing Test HAVE_CXX_FVISIBILITY_INLINES_HIDDEN
-- Performing Test HAVE_CXX_FVISIBILITY_INLINES_HIDDEN - Success
-- Performing Test HAVE_C_FVISIBILITY_INLINES_HIDDEN
-- Performing Test HAVE_C_FVISIBILITY_INLINES_HIDDEN - Failed
-- Performing Test HAVE_LINK_AS_NEEDED
-- Performing Test HAVE_LINK_AS_NEEDED - Success
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for posix_memalign
-- Looking for posix_memalign - found
-- Looking for malloc.h
-- Looking for malloc.h - found
-- Looking for memalign
-- Looking for memalign - found
-- Check if the system is big endian
-- Searching 16 bit integer
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of unsigned short
-- Check size of unsigned short - done
-- Searching 16 bit integer - Using unsigned short
-- Check if the system is big endian - little endian
-- Found OpenMP_C: -fopenmp (found version "4.5") 
-- Found OpenMP_CXX: -fopenmp (found version "4.5") 
-- Found OpenMP: TRUE (found version "4.5")  
-- Found ZLIB: /usr/lib64/libz.so (found suitable version "1.2.11", minimum required is "1.2.3") 
Download was disabled during configure phase by ENABLE_DOWNLOAD=OFF
-- OpenCV Python: during development append to PYTHONPATH: /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64/python_loader
-- Allocator metrics storage type: 'long long'
-- Excluding from source files list: modules/imgproc/src/corner.avx.cpp
-- Excluding from source files list: modules/imgproc/src/imgwarp.avx2.cpp
-- Excluding from source files list: modules/imgproc/src/imgwarp.sse4_1.cpp
-- Excluding from source files list: modules/imgproc/src/resize.avx2.cpp
-- Excluding from source files list: modules/imgproc/src/resize.sse4_1.cpp
-- Performing Test HAVE_CXX_WNO_DEPRECATED_DECLARATIONS
-- Performing Test HAVE_CXX_WNO_DEPRECATED_DECLARATIONS - Success
-- Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
-- Performing Test HAVE_CXX_WNO_DEPRECATED
-- Performing Test HAVE_CXX_WNO_DEPRECATED - Success
-- Performing Test HAVE_CXX_WNO_MISSING_PROTOTYPES
-- Performing Test HAVE_CXX_WNO_MISSING_PROTOTYPES - Failed
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS - Success
-- Performing Test HAVE_CXX_WNO_SHADOW
-- Performing Test HAVE_CXX_WNO_SHADOW - Success
-- Performing Test HAVE_CXX_WNO_UNUSED_PARAMETER
-- Performing Test HAVE_CXX_WNO_UNUSED_PARAMETER - Success
-- Performing Test HAVE_CXX_WNO_SIGN_COMPARE
-- Performing Test HAVE_CXX_WNO_SIGN_COMPARE - Success
-- Performing Test HAVE_CXX_WNO_INVALID_OFFSETOF
-- Performing Test HAVE_CXX_WNO_INVALID_OFFSETOF - Success
-- Performing Test HAVE_CXX_WNO_SUGGEST_OVERRIDE
-- Performing Test HAVE_CXX_WNO_SUGGEST_OVERRIDE - Success
-- Performing Test HAVE_CXX_WNO_ARRAY_BOUNDS
-- Performing Test HAVE_CXX_WNO_ARRAY_BOUNDS - Success
-- opencv_dnn: filter out ocl4dnn source code
-- opencv_dnn: filter out cuda4dnn source code
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx2.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx512_skx.cpp
-- Excluding from source files list: modules/features2d/src/fast.avx2.cpp
-- 
-- General configuration for OpenCV 4.4.0 =====================================
--   Version control:               unknown
-- 
--   Platform:
--     Timestamp:                   2020-10-12T08:33:26Z
--     Host:                        Linux 4.9.24-hardened x86_64
--     CMake:                       3.18.4
--     CMake generator:             Ninja
--     CMake build tool:            /usr/bin/ninja
--     Configuration:               Gentoo
-- 
--   CPU/HW features:
--     Baseline:                    SSE SSE2
--       requested:                 SSE SSE2
-- 
--   C/C++:
--     Built as dynamic libs?:      YES
--     C++ standard:                11
--     C++ Compiler:                /usr/bin/x86_64-pc-linux-gnu-g++  (ver 9.3.0)
--     C++ flags (Release):         -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -O3 -DNDEBUG  -DNDEBUG
--     C++ flags (Debug):           -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -g  -DDEBUG -D_DEBUG
--     C Compiler:                  /usr/bin/x86_64-pc-linux-gnu-gcc
--     C flags (Release):           -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fopenmp -O3 -DNDEBUG  -DNDEBUG
--     C flags (Debug):             -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fopenmp -g  -DDEBUG -D_DEBUG
--     Linker flags (Release):      -Wl,-O1 -Wl,--as-needed  -Wl,--gc-sections -Wl,--as-needed  
--     Linker flags (Debug):        -Wl,-O1 -Wl,--as-needed  -Wl,--gc-sections -Wl,--as-needed  
--     ccache:                      NO
--     Precompiled headers:         NO
--     Extra dependencies:          dl m pthread rt
--     3rdparty dependencies:
-- 
--   OpenCV modules:
--     To be built:                 calib3d core dnn features2d flann highgui imgcodecs imgproc ml objdetect photo stitching video videoio
--     Disabled:                    world
--     Disabled by dependency:      -
--     Unavailable:                 gapi java js python2 python3 ts
--     Applications:                -
--     Documentation:               NO
--     Non-free algorithms:         NO
-- 
--   GUI: 
-- 
--   Media I/O: 
--     ZLib:                        /usr/lib64/libz.so (ver 1.2.11)
--     HDR:                         YES
--     SUNRASTER:                   YES
--     PXM:                         YES
--     PFM:                         YES
-- 
--   Video I/O:
-- 
--   Parallel framework:            OpenMP
-- 
--   Trace:                         YES (built-in)
-- 
--   Other third-party libraries:
--     Eigen:                       YES (ver 3.3.8)
--     Custom HAL:                  NO
--     Protobuf:                    /usr/lib64/libprotobuf.so (3.13.0)
-- 
--   Python (for build):            NO
-- 
--   Install to:                    /usr
-- -----------------------------------------------------------------
-- 
-- <<< Gentoo configuration >>>
Build type      Gentoo
Install path    /usr
Compiler flags:
C               -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fopenmp
C++             -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp
Linker flags:
Executable      -Wl,-O1 -Wl,--as-needed  -Wl,--gc-sections -Wl,--as-needed
Module          -Wl,-O1 -Wl,--as-needed
Shared          -Wl,-O1 -Wl,--as-needed  -Wl,--gc-sections -Wl,--as-needed

-- Configuring done
-- Generating done
-- Build files have been written to: /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64
>>> Source configured.
>>> Compiling source in /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0 ...
 [32;01m*[0m abi_x86_64.amd64: running multilib-minimal_abi_src_compile
 [32;01m*[0m Working in BUILD_DIR: "/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64"
ninja -v -j9 -l0
[1/435] cd /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64 && /usr/bin/cmake -DCMAKE_HELPER_SCRIPT=/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64/OpenCVGenPkgConfig.info.cmake -P /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/cmake/OpenCVGenPkgconfig.cmake
[2/435] cd /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64/modules/core && /usr/bin/cmake -DMODULE_NAME=core -DCL_DIR=/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/opencl -DOUTPUT=/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64/modules/core/opencl_kernels_core.cpp -P /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/cmake/cl2cpp.cmake
[3/435] /usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/bindings_utils.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/bindings_utils.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/bindings_utils.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/bindings_utils.cpp
FAILED: modules/core/CMakeFiles/opencv_core.dir/src/bindings_utils.cpp.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/bindings_utils.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/bindings_utils.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/bindings_utils.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/bindings_utils.cpp
In file included from /usr/include/eigen3/Eigen/Core:88,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include/opencv2/core/private.hpp:70,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/precomp.hpp:55,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/bindings_utils.cpp:5:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h: In function ‘void Eigen::internal::parallelize_gemm(const Functor&, Index, Index, Index, bool)’:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h:162:19: error: ‘eigen_assert_exception’ is not a member of ‘Eigen’
  162 |   if (errorCount) EIGEN_THROW_X(Eigen::eigen_assert_exception());
      |                   ^~~~~~~~~~~~~
[4/435] /usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/buffer_area.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/buffer_area.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/buffer_area.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/buffer_area.cpp
FAILED: modules/core/CMakeFiles/opencv_core.dir/src/buffer_area.cpp.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/buffer_area.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/buffer_area.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/buffer_area.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/buffer_area.cpp
In file included from /usr/include/eigen3/Eigen/Core:88,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include/opencv2/core/private.hpp:70,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include/opencv2/core/utils/buffer_area.private.hpp:8,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/buffer_area.cpp:5:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h: In function ‘void Eigen::internal::parallelize_gemm(const Functor&, Index, Index, Index, bool)’:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h:162:19: error: ‘eigen_assert_exception’ is not a member of ‘Eigen’
  162 |   if (errorCount) EIGEN_THROW_X(Eigen::eigen_assert_exception());
      |                   ^~~~~~~~~~~~~
[5/435] /usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/algorithm.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/algorithm.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/algorithm.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/algorithm.cpp
FAILED: modules/core/CMakeFiles/opencv_core.dir/src/algorithm.cpp.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/algorithm.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/algorithm.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/algorithm.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/algorithm.cpp
In file included from /usr/include/eigen3/Eigen/Core:88,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include/opencv2/core/private.hpp:70,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/precomp.hpp:55,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/algorithm.cpp:43:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h: In function ‘void Eigen::internal::parallelize_gemm(const Functor&, Index, Index, Index, bool)’:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h:162:19: error: ‘eigen_assert_exception’ is not a member of ‘Eigen’
  162 |   if (errorCount) EIGEN_THROW_X(Eigen::eigen_assert_exception());
      |                   ^~~~~~~~~~~~~
[6/435] /usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/array.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/array.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/array.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/array.cpp
FAILED: modules/core/CMakeFiles/opencv_core.dir/src/array.cpp.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/array.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/array.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/array.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/array.cpp
In file included from /usr/include/eigen3/Eigen/Core:88,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include/opencv2/core/private.hpp:70,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/precomp.hpp:55,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/array.cpp:49:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h: In function ‘void Eigen::internal::parallelize_gemm(const Functor&, Index, Index, Index, bool)’:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h:162:19: error: ‘eigen_assert_exception’ is not a member of ‘Eigen’
  162 |   if (errorCount) EIGEN_THROW_X(Eigen::eigen_assert_exception());
      |                   ^~~~~~~~~~~~~
[7/435] /usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/batch_distance.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/batch_distance.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/batch_distance.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/batch_distance.cpp
FAILED: modules/core/CMakeFiles/opencv_core.dir/src/batch_distance.cpp.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/batch_distance.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/batch_distance.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/batch_distance.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/batch_distance.cpp
In file included from /usr/include/eigen3/Eigen/Core:88,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include/opencv2/core/private.hpp:70,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/precomp.hpp:55,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/batch_distance.cpp:6:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h: In function ‘void Eigen::internal::parallelize_gemm(const Functor&, Index, Index, Index, bool)’:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h:162:19: error: ‘eigen_assert_exception’ is not a member of ‘Eigen’
  162 |   if (errorCount) EIGEN_THROW_X(Eigen::eigen_assert_exception());
      |                   ^~~~~~~~~~~~~
[8/435] /usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/arithm.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/arithm.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/arithm.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/arithm.cpp
FAILED: modules/core/CMakeFiles/opencv_core.dir/src/arithm.cpp.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/arithm.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/arithm.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/arithm.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/arithm.cpp
In file included from /usr/include/eigen3/Eigen/Core:88,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include/opencv2/core/private.hpp:70,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/precomp.hpp:55,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/arithm.cpp:50:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h: In function ‘void Eigen::internal::parallelize_gemm(const Functor&, Index, Index, Index, bool)’:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h:162:19: error: ‘eigen_assert_exception’ is not a member of ‘Eigen’
  162 |   if (errorCount) EIGEN_THROW_X(Eigen::eigen_assert_exception());
      |                   ^~~~~~~~~~~~~
[9/435] /usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -DHAVE_MALLOC_H=1 -DHAVE_MEMALIGN=1 -DHAVE_POSIX_MEMALIGN=1 -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/alloc.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/alloc.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/alloc.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/alloc.cpp
FAILED: modules/core/CMakeFiles/opencv_core.dir/src/alloc.cpp.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -DHAVE_MALLOC_H=1 -DHAVE_MEMALIGN=1 -DHAVE_POSIX_MEMALIGN=1 -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/alloc.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/alloc.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/alloc.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/alloc.cpp
In file included from /usr/include/eigen3/Eigen/Core:88,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include/opencv2/core/private.hpp:70,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/precomp.hpp:55,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/alloc.cpp:43:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h: In function ‘void Eigen::internal::parallelize_gemm(const Functor&, Index, Index, Index, bool)’:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h:162:19: error: ‘eigen_assert_exception’ is not a member of ‘Eigen’
  162 |   if (errorCount) EIGEN_THROW_X(Eigen::eigen_assert_exception());
      |                   ^~~~~~~~~~~~~
[10/435] /usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/arithm.dispatch.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/arithm.dispatch.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/arithm.dispatch.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/arithm.dispatch.cpp
FAILED: modules/core/CMakeFiles/opencv_core.dir/src/arithm.dispatch.cpp.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/arithm.dispatch.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/arithm.dispatch.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/arithm.dispatch.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/arithm.dispatch.cpp
In file included from /usr/include/eigen3/Eigen/Core:88,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include/opencv2/core/private.hpp:70,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/precomp.hpp:55,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/arithm.dispatch.cpp:5:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h: In function ‘void Eigen::internal::parallelize_gemm(const Functor&, Index, Index, Index, bool)’:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h:162:19: error: ‘eigen_assert_exception’ is not a member of ‘Eigen’
  162 |   if (errorCount) EIGEN_THROW_X(Eigen::eigen_assert_exception());
      |                   ^~~~~~~~~~~~~
[11/435] /usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/async.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/async.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/async.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/async.cpp
FAILED: modules/core/CMakeFiles/opencv_core.dir/src/async.cpp.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DCVAPI_EXPORTS -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE="long long" -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include -Imodules/core -isystem . -isystem /usr/include/eigen3  -march=core2 -mtune=generic -O2 -pipe   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -fPIC -std=c++11 -MD -MT modules/core/CMakeFiles/opencv_core.dir/src/async.cpp.o -MF modules/core/CMakeFiles/opencv_core.dir/src/async.cpp.o.d -o modules/core/CMakeFiles/opencv_core.dir/src/async.cpp.o -c /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/async.cpp
In file included from /usr/include/eigen3/Eigen/Core:88,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/include/opencv2/core/private.hpp:70,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/precomp.hpp:55,
                 from /var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0/modules/core/src/async.cpp:5:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h: In function ‘void Eigen::internal::parallelize_gemm(const Functor&, Index, Index, Index, bool)’:
/usr/include/eigen3/Eigen/src/Core/products/Parallelizer.h:162:19: error: ‘eigen_assert_exception’ is not a member of ‘Eigen’
  162 |   if (errorCount) EIGEN_THROW_X(Eigen::eigen_assert_exception());
      |                   ^~~~~~~~~~~~~
ninja: build stopped: subcommand failed.
 [31;01m*[0m ERROR: media-libs/opencv-4.4.0-r1::gentoo failed (compile phase):
 [31;01m*[0m   ninja -v -j9 -l0 failed
 [31;01m*[0m 
 [31;01m*[0m Call stack:
 [31;01m*[0m     ebuild.sh, line  125:  Called src_compile
 [31;01m*[0m   environment, line 5593:  Called cmake-multilib_src_compile
 [31;01m*[0m   environment, line 1265:  Called multilib-minimal_src_compile
 [31;01m*[0m   environment, line 4252:  Called multilib_foreach_abi 'multilib-minimal_abi_src_compile'
 [31;01m*[0m   environment, line 4522:  Called multibuild_foreach_variant '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_compile'
 [31;01m*[0m   environment, line 4187:  Called _multibuild_run '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_compile'
 [31;01m*[0m   environment, line 4185:  Called _multilib_multibuild_wrapper 'multilib-minimal_abi_src_compile'
 [31;01m*[0m   environment, line  683:  Called multilib-minimal_abi_src_compile
 [31;01m*[0m   environment, line 4246:  Called multilib_src_compile
 [31;01m*[0m   environment, line 4734:  Called cmake_src_compile
 [31;01m*[0m   environment, line 1376:  Called cmake_build
 [31;01m*[0m   environment, line 1345:  Called eninja
 [31;01m*[0m   environment, line 1958:  Called die
 [31;01m*[0m The specific snippet of code:
 [31;01m*[0m       "$@" || die "${nonfatal_args[@]}" "${*} failed"
 [31;01m*[0m 
 [31;01m*[0m If you need support, post the output of `emerge --info '=media-libs/opencv-4.4.0-r1::gentoo'`,
 [31;01m*[0m the complete build log and the output of `emerge -pqv '=media-libs/opencv-4.4.0-r1::gentoo'`.
!!! When you file a bug report, please include the following information:
GENTOO_VM=  CLASSPATH="/usr/share/jdbc-postgresql/lib/jdbc-postgresql.jar" JAVA_HOME="/etc/java-config-2/current-system-vm"
JAVACFLAGS="" COMPILER=""
and of course, the output of emerge --info =opencv-4.4.0
 [31;01m*[0m The complete build log is located at '/var/tmp/portage/media-libs/opencv-4.4.0-r1/temp/build.log'.
 [31;01m*[0m The ebuild environment file is located at '/var/tmp/portage/media-libs/opencv-4.4.0-r1/temp/environment'.
 [31;01m*[0m Working directory: '/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0_build-abi_x86_64.amd64'
 [31;01m*[0m S: '/var/tmp/portage/media-libs/opencv-4.4.0-r1/work/opencv-4.4.0'