cmake console output

  -- The CXX compiler identification is GNU 8.3.0
    -- The C compiler identification is GNU 8.3.0
    -- Check for working CXX compiler: /usr/bin/c++
    -- Check for working CXX compiler: /usr/bin/c++ -- works
    -- Detecting CXX compiler ABI info
    -- Detecting CXX compiler ABI info - done
    -- Detecting CXX compile features
    -- Detecting CXX compile features - done
    -- Check for working C compiler: /usr/bin/cc
    -- Check for working C compiler: /usr/bin/cc -- works
    -- Detecting C compiler ABI info
    -- Detecting C compiler ABI info - done
    -- Detecting C compile features
    -- Detecting C compile features - done
    -- Detected processor: armv6l
    -- Found PythonInterp: /usr/bin/python2.7 (found suitable version "2.7.16", minimum required is "2.7")
    -- Could NOT find PythonLibs (missing: PYTHON_LIBRARIES PYTHON_INCLUDE_DIRS) (Required is exact version "2.7.16")
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
    ImportError: No module named numpy.distutils
    -- Found PythonInterp: /usr/bin/python3 (found suitable version "3.7.3", minimum required is "3.2")
    -- Found PythonLibs: /usr/lib/arm-linux-gnueabihf/libpython3.7m.so (found suitable exact version "3.7.3")
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
    ModuleNotFoundError: No module named 'numpy'
    -- Looking for ccache - not found
    -- 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
    -- Performing Test HAVE_C_W
    -- Performing Test HAVE_C_W - Success
    -- Performing Test HAVE_CXX_WALL
    -- 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
    -- Performing Test HAVE_C_WERROR_RETURN_TYPE
    -- 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 - Success
    -- Performing Test HAVE_CXX_WERROR_ADDRESS
    -- Performing Test HAVE_CXX_WERROR_ADDRESS - Success
    -- Performing Test HAVE_C_WERROR_ADDRESS
    -- 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
    -- Performing Test HAVE_CXX_WFORMAT
    -- Performing Test HAVE_CXX_WFORMAT - Success
    -- Performing Test HAVE_C_WFORMAT
    -- Performing Test HAVE_C_WFORMAT - Success
    -- Performing Test HAVE_CXX_WERROR_FORMAT_SECURITY
    -- 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
    -- Performing Test HAVE_C_WUNDEF
    -- 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_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_MFPU_VFPV3
    -- Performing Test HAVE_CXX_MFPU_VFPV3 - Success
    -- Performing Test HAVE_CPU_NEON_SUPPORT (check file: cmake/checks/cpu_neon.cpp)
    -- Performing Test HAVE_CPU_NEON_SUPPORT - Failed
    -- Performing Test HAVE_CXX_MFPU_NEON (check file: cmake/checks/cpu_neon.cpp)
    -- Performing Test HAVE_CXX_MFPU_NEON - Success
    -- Performing Test HAVE_CPU_FP16_SUPPORT (check file: cmake/checks/cpu_fp16.cpp)
    -- Performing Test HAVE_CPU_FP16_SUPPORT - Failed
    -- Performing Test HAVE_CXX_MFPU_NEON_FP16_MFP16_FORMAT_IEEE (check file: cmake/checks/cpu_fp16.cpp)
    -- Performing Test HAVE_CXX_MFPU_NEON_FP16_MFP16_FORMAT_IEEE - 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
    -- Using unsigned short
    -- Check if the system is big endian - little endian
    -- Found ZLIB: /usr/local/lib/libz.so (found suitable version "1.2.11", minimum required is "1.2.3")
    -- Found JPEG: /usr/lib/arm-linux-gnueabihf/libjpeg.so (found version "62")
    -- Found TIFF: /usr/lib/arm-linux-gnueabihf/libtiff.so (found version "4.1.0")
    -- Found WebP: /usr/lib/arm-linux-gnueabihf/libwebp.so
    -- Could NOT find OpenJPEG (minimal suitable version: 2.0, recommended version >= 2.3.1). OpenJPEG will be built from sources
    -- Performing Test HAVE_C_WNO_IMPLICIT_CONST_INT_FLOAT_CONVERSION
    -- Performing Test HAVE_C_WNO_IMPLICIT_CONST_INT_FLOAT_CONVERSION - Failed
    -- OpenJPEG: VERSION = 2.3.1, BUILD = opencv-4.5.1-openjp2-2.3.1
    -- Check if the system is big endian
    -- Searching 16 bit integer
    -- Using unsigned short
    -- Check if the system is big endian - little endian
    -- Looking for string.h
    -- Looking for string.h - found
    -- Looking for memory.h
    -- Looking for memory.h - found
    -- Looking for stdlib.h
    -- Looking for stdlib.h - found
    -- Looking for stdio.h
    -- Looking for stdio.h - found
    -- Looking for math.h
    -- Looking for math.h - found
    -- Looking for float.h
    -- Looking for float.h - found
    -- Looking for time.h
    -- Looking for time.h - found
    -- Looking for stdarg.h
    -- Looking for stdarg.h - found
    -- Looking for ctype.h
    -- Looking for ctype.h - found
    -- Looking for assert.h
    -- Looking for assert.h - found
    -- Looking for stdint.h
    -- Looking for stdint.h - found
    -- Looking for inttypes.h
    -- Looking for inttypes.h - found
    -- Looking for strings.h
    -- Looking for strings.h - found
    -- Looking for sys/stat.h
    -- Looking for sys/stat.h - found
    -- Looking for unistd.h
    -- Looking for unistd.h - found
    -- Looking for include file malloc.h
    -- Looking for include file malloc.h - found
    -- Looking for _aligned_malloc
    -- Looking for _aligned_malloc - not found
    -- Looking for posix_memalign
    -- Looking for posix_memalign - found
    -- Looking for memalign
    -- Looking for memalign - found
    -- Performing Test HAVE_C_WNO_UNDEF
    -- Performing Test HAVE_C_WNO_UNDEF - Success
    -- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES
    -- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES - Success
    -- Performing Test HAVE_C_WNO_CAST_FUNCTION_TYPE
    -- Performing Test HAVE_C_WNO_CAST_FUNCTION_TYPE - Success
    -- OpenJPEG libraries will be built from sources: libopenjp2 (version "2.3.1")
    -- Found ZLIB: /usr/local/lib/libz.so (found version "1.2.11")
    -- Found PNG: /usr/lib/arm-linux-gnueabihf/libpng.so (found version "1.6.36")
    -- Looking for /usr/include/libpng/png.h
    -- Looking for /usr/include/libpng/png.h - found
    -- Looking for semaphore.h
    -- Looking for semaphore.h - found
    -- Performing Test HAVE_CXX_WNO_SHADOW
    -- Performing Test HAVE_CXX_WNO_SHADOW - Success
    -- Performing Test HAVE_CXX_WNO_UNUSED
    -- Performing Test HAVE_CXX_WNO_UNUSED - Success
    -- Performing Test HAVE_CXX_WNO_SIGN_COMPARE
    -- Performing Test HAVE_CXX_WNO_SIGN_COMPARE - Success
    -- Performing Test HAVE_CXX_WNO_UNDEF
    -- Performing Test HAVE_CXX_WNO_UNDEF - Success
    -- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS
    -- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS - Success
    -- Performing Test HAVE_CXX_WNO_UNINITIALIZED
    -- Performing Test HAVE_CXX_WNO_UNINITIALIZED - Success
    -- Performing Test HAVE_CXX_WNO_SWITCH
    -- Performing Test HAVE_CXX_WNO_SWITCH - Success
    -- Performing Test HAVE_CXX_WNO_PARENTHESES
    -- Performing Test HAVE_CXX_WNO_PARENTHESES - Success
    -- Performing Test HAVE_CXX_WNO_ARRAY_BOUNDS
    -- Performing Test HAVE_CXX_WNO_ARRAY_BOUNDS - Success
    -- Performing Test HAVE_CXX_WNO_EXTRA
    -- Performing Test HAVE_CXX_WNO_EXTRA - Success
    -- Performing Test HAVE_CXX_WNO_DEPRECATED_DECLARATIONS
    -- Performing Test HAVE_CXX_WNO_DEPRECATED_DECLARATIONS - Success
    -- Performing Test HAVE_CXX_WNO_MISLEADING_INDENTATION
    -- Performing Test HAVE_CXX_WNO_MISLEADING_INDENTATION - Success
    -- Performing Test HAVE_CXX_WNO_DEPRECATED
    -- Performing Test HAVE_CXX_WNO_DEPRECATED - Success
    -- Performing Test HAVE_CXX_WNO_SUGGEST_OVERRIDE
    -- Performing Test HAVE_CXX_WNO_SUGGEST_OVERRIDE - Success
    -- Performing Test HAVE_CXX_WNO_INCONSISTENT_MISSING_OVERRIDE
    -- Performing Test HAVE_CXX_WNO_INCONSISTENT_MISSING_OVERRIDE - Failed
    -- Performing Test HAVE_CXX_WNO_IMPLICIT_FALLTHROUGH
    -- Performing Test HAVE_CXX_WNO_IMPLICIT_FALLTHROUGH - Success
    -- Performing Test HAVE_CXX_WNO_TAUTOLOGICAL_COMPARE
    -- Performing Test HAVE_CXX_WNO_TAUTOLOGICAL_COMPARE - Success
    -- Performing Test HAVE_CXX_WNO_MISSING_PROTOTYPES
    -- Performing Test HAVE_CXX_WNO_MISSING_PROTOTYPES - Failed
    -- Performing Test HAVE_CXX_WNO_REORDER
    -- Performing Test HAVE_CXX_WNO_REORDER - Success
    -- Performing Test HAVE_CXX_WNO_UNUSED_RESULT
    -- Performing Test HAVE_CXX_WNO_UNUSED_RESULT - Success
    -- Performing Test HAVE_CXX_WNO_IMPLICIT_CONST_INT_FLOAT_CONVERSION
    -- Performing Test HAVE_CXX_WNO_IMPLICIT_CONST_INT_FLOAT_CONVERSION - Failed
    -- Performing Test HAVE_CXX_WNO_CLASS_MEMACCESS
    -- Performing Test HAVE_CXX_WNO_CLASS_MEMACCESS - Success
    -- Checking for module 'gtk+-3.0'
    --   No package 'gtk+-3.0' found
    -- Checking for module 'gtk+-2.0'
    --   Found gtk+-2.0, version 2.24.32
    -- Checking for module 'gthread-2.0'
    --   Found gthread-2.0, version 2.58.3
    -- Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
    -- Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
    -- Could NOT find Atlas (missing: Atlas_CLAPACK_INCLUDE_DIR)
    -- Looking for sgemm_
    -- Looking for sgemm_ - not found
    -- Found Threads: TRUE
    -- Looking for dgemm_
    -- Looking for dgemm_ - found
    -- Found BLAS: /usr/lib/arm-linux-gnueabihf/libf77blas.so;/usr/lib/arm-linux-gnueabihf/libatlas.so
    -- Looking for cheev_
    -- Looking for cheev_ - not found
    -- Looking for cheev_
    -- Looking for cheev_ - found
    -- A library with LAPACK API found.
    -- Performing Test HAVE_CXX_WNO_UNUSED_PARAMETER
    -- Performing Test HAVE_CXX_WNO_UNUSED_PARAMETER - Success
    -- Performing Test HAVE_CXX_WNO_UNUSED_LOCAL_TYPEDEFS
    -- Performing Test HAVE_CXX_WNO_UNUSED_LOCAL_TYPEDEFS - Success
    -- Performing Test HAVE_CXX_WNO_SIGN_PROMO
    -- Performing Test HAVE_CXX_WNO_SIGN_PROMO - Success
    -- Performing Test HAVE_CXX_WNO_TAUTOLOGICAL_UNDEFINED_COMPARE
    -- Performing Test HAVE_CXX_WNO_TAUTOLOGICAL_UNDEFINED_COMPARE - Failed
    -- Performing Test HAVE_CXX_WNO_IGNORED_QUALIFIERS
    -- Performing Test HAVE_CXX_WNO_IGNORED_QUALIFIERS - Success
    -- Performing Test HAVE_CXX_WNO_UNUSED_FUNCTION
    -- Performing Test HAVE_CXX_WNO_UNUSED_FUNCTION - Success
    -- Performing Test HAVE_CXX_WNO_UNUSED_CONST_VARIABLE
    -- Performing Test HAVE_CXX_WNO_UNUSED_CONST_VARIABLE - Success
    -- Performing Test HAVE_CXX_WNO_SHORTEN_64_TO_32
    -- Performing Test HAVE_CXX_WNO_SHORTEN_64_TO_32 - Failed
    -- Performing Test HAVE_CXX_WNO_INVALID_OFFSETOF
    -- Performing Test HAVE_CXX_WNO_INVALID_OFFSETOF - Success
    -- Performing Test HAVE_CXX_WNO_ENUM_COMPARE_SWITCH
    -- Performing Test HAVE_CXX_WNO_ENUM_COMPARE_SWITCH - Failed
    -- Could NOT find JNI (missing: JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH)
    -- VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
    -- Performing Test HAVE_C_WNO_UNUSED_VARIABLE
    -- Performing Test HAVE_C_WNO_UNUSED_VARIABLE - Success
    -- Performing Test HAVE_C_WNO_SHADOW
    -- Performing Test HAVE_C_WNO_SHADOW - Success
    -- Carotene: NEON is not available, disabling carotene...
    -- Looking for dlerror in dl
    -- Looking for dlerror in dl - found
    -- Performing Test HAVE_C_WNO_IMPLICIT_FALLTHROUGH
    -- Performing Test HAVE_C_WNO_IMPLICIT_FALLTHROUGH - Success
    -- Performing Test HAVE_C_WNO_SIGN_COMPARE
    -- Performing Test HAVE_C_WNO_SIGN_COMPARE - Success
    -- ADE: Download: v0.1.1f.zip
    -- OpenCV Python: during development append to PYTHONPATH: /tmp/opencv/opencv-4.5.1/build/python_loader
    -- Checking for modules 'libavcodec;libavformat;libavutil;libswscale'
    --   Found libavcodec, version 58.129.100
    --   Found libavformat, version 58.71.100
    --   Found libavutil, version 56.67.100
    --   Found libswscale, version 5.8.100
    CMake Warning at cmake/OpenCVUtils.cmake:876 (message):
      ocv_check_modules(FFMPEG): can't find library 'mmal_core'.  Specify
      'pkgcfg_lib_FFMPEG_mmal_core' manually
    Call Stack (most recent call first):
      modules/videoio/cmake/detect_ffmpeg.cmake:30 (ocv_check_modules)
      modules/videoio/cmake/init.cmake:3 (include)
      modules/videoio/cmake/init.cmake:30 (add_backend)
      cmake/OpenCVModule.cmake:298 (include)
      cmake/OpenCVModule.cmake:361 (_add_modules_1)
      modules/CMakeLists.txt:7 (ocv_glob_modules)


    CMake Warning at cmake/OpenCVUtils.cmake:876 (message):
      ocv_check_modules(FFMPEG): can't find library 'mmal_util'.  Specify
      'pkgcfg_lib_FFMPEG_mmal_util' manually
    Call Stack (most recent call first):
      modules/videoio/cmake/detect_ffmpeg.cmake:30 (ocv_check_modules)
      modules/videoio/cmake/init.cmake:3 (include)
      modules/videoio/cmake/init.cmake:30 (add_backend)
      cmake/OpenCVModule.cmake:298 (include)
      cmake/OpenCVModule.cmake:361 (_add_modules_1)
      modules/CMakeLists.txt:7 (ocv_glob_modules)


    CMake Warning at cmake/OpenCVUtils.cmake:876 (message):
      ocv_check_modules(FFMPEG): can't find library 'mmal_vc_client'.  Specify
      'pkgcfg_lib_FFMPEG_mmal_vc_client' manually
    Call Stack (most recent call first):
      modules/videoio/cmake/detect_ffmpeg.cmake:30 (ocv_check_modules)
      modules/videoio/cmake/init.cmake:3 (include)
      modules/videoio/cmake/init.cmake:30 (add_backend)
      cmake/OpenCVModule.cmake:298 (include)
      cmake/OpenCVModule.cmake:361 (_add_modules_1)
      modules/CMakeLists.txt:7 (ocv_glob_modules)


    CMake Warning at cmake/OpenCVUtils.cmake:876 (message):
      ocv_check_modules(FFMPEG): can't find library 'bcm_host'.  Specify
      'pkgcfg_lib_FFMPEG_bcm_host' manually
    Call Stack (most recent call first):
      modules/videoio/cmake/detect_ffmpeg.cmake:30 (ocv_check_modules)
      modules/videoio/cmake/init.cmake:3 (include)
      modules/videoio/cmake/init.cmake:30 (add_backend)
      cmake/OpenCVModule.cmake:298 (include)
      cmake/OpenCVModule.cmake:361 (_add_modules_1)
      modules/CMakeLists.txt:7 (ocv_glob_modules)


    CMake Warning at cmake/OpenCVUtils.cmake:876 (message):
      ocv_check_modules(FFMPEG): can't find library 'stdc++'.  Specify
      'pkgcfg_lib_FFMPEG_stdc++' manually
    Call Stack (most recent call first):
      modules/videoio/cmake/detect_ffmpeg.cmake:30 (ocv_check_modules)
      modules/videoio/cmake/init.cmake:3 (include)
      modules/videoio/cmake/init.cmake:30 (add_backend)
      cmake/OpenCVModule.cmake:298 (include)
      cmake/OpenCVModule.cmake:361 (_add_modules_1)
      modules/CMakeLists.txt:7 (ocv_glob_modules)


    -- Checking for module 'libavresample'
    --   Found libavresample, version 4.0.0
    -- WARNING: Can't build ffmpeg test code
    -- Checking for module 'gstreamer-base-1.0'
    --   Found gstreamer-base-1.0, version 1.14.4
    -- Checking for module 'gstreamer-app-1.0'
    --   Found gstreamer-app-1.0, version 1.14.4
    -- Checking for module 'gstreamer-riff-1.0'
    --   Found gstreamer-riff-1.0, version 1.14.4
    -- Checking for module 'gstreamer-pbutils-1.0'
    --   Found gstreamer-pbutils-1.0, version 1.14.4
    -- Checking for module 'libdc1394-2'
    --   Found libdc1394-2, version 2.2.5
    -- Module opencv_alphamat disabled because the following dependencies are not found: Eigen
    -- Caffe:   NO
    -- Protobuf:   NO
    -- Glog:   NO
    -- Checking for module 'freetype2'
    --   Found freetype2, version 22.1.16
    -- Checking for module 'harfbuzz'
    --   Found harfbuzz, version 2.3.1
    -- freetype2:   YES (ver 22.1.16)
    -- harfbuzz:    YES (ver 2.3.1)
    -- Could NOT find HDF5 (missing: HDF5_LIBRARIES HDF5_INCLUDE_DIRS) (found version "")
    -- Julia not found. Not compiling Julia Bindings.
    -- Module opencv_ovis disabled because OGRE3D was not found
    -- No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
    -- Failed to find installed gflags CMake configuration, searching for gflags build directories exported with CMake.
    -- Failed to find gflags - Failed to find an installed/exported CMake configuration for gflags, will perform search for installed gflags components.
    -- Failed to find gflags - Could not find gflags include directory, set GFLAGS_INCLUDE_DIR to directory containing gflags/gflags.h
    -- Failed to find glog - Could not find glog include directory, set GLOG_INCLUDE_DIR to directory containing glog/logging.h
    -- Module opencv_sfm disabled because the following dependencies are not found: Eigen Glog/Gflags
    -- Checking for module 'tesseract'
    --   No package 'tesseract' found
    -- Tesseract:   NO
    -- Allocator metrics storage type: 'int'
    -- 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
    -- Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': /tmp/opencv/opencv-4.5.1/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
    -- 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
    -- Performing Test HAVE_CXX_WNO_OVERLOADED_VIRTUAL
    -- Performing Test HAVE_CXX_WNO_OVERLOADED_VIRTUAL - Success
    -- rgbd: CERES support is disabled. Ceres Solver is Required for Posegraph optimization
    -- xfeatures2d/boostdesc: Download: boostdesc_bgm.i
    -- xfeatures2d/boostdesc: Download: boostdesc_bgm_bi.i
    -- xfeatures2d/boostdesc: Download: boostdesc_bgm_hd.i
    -- xfeatures2d/boostdesc: Download: boostdesc_binboost_064.i
    -- xfeatures2d/boostdesc: Download: boostdesc_binboost_128.i
    -- xfeatures2d/boostdesc: Download: boostdesc_binboost_256.i
    -- xfeatures2d/boostdesc: Download: boostdesc_lbgm.i
    -- xfeatures2d/vgg: Download: vgg_generated_48.i
    -- xfeatures2d/vgg: Download: vgg_generated_64.i
    -- xfeatures2d/vgg: Download: vgg_generated_80.i
    -- xfeatures2d/vgg: Download: vgg_generated_120.i
    -- data: Download: face_landmark_model.dat
    --
    -- General configuration for OpenCV 4.5.1 =====================================
    --   Version control:               unknown
    --
    --   Extra modules:
    --     Location (extra):            /tmp/opencv/opencv_contrib-4.5.1/modules
    --     Version control (extra):     unknown
    --
    --   Platform:
    --     Timestamp:                   2021-03-18T15:34:33Z
    --     Host:                        Linux 5.10.17+ armv6l
    --     CMake:                       3.16.3
    --     CMake generator:             Unix Makefiles
    --     CMake build tool:            /usr/bin/make
    --     Configuration:               RELEASE
    --
    --   CPU/HW features:
    --     Baseline:
    --       requested:                 DETECT
    --
    --   C/C++:
    --     Built as dynamic libs?:      NO
    --     C++ standard:                11
    --     C++ Compiler:                /usr/bin/c++  (ver 8.3.0)
    --     C++ flags (Release):         -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 -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG  -DNDEBUG
    --     C++ flags (Debug):           -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 -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -fvisibility=hidden -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
    --     C Compiler:                  /usr/bin/cc
    --     C flags (Release):           -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -fvisibility=hidden -O3 -DNDEBUG  -DNDEBUG
    --     C flags (Debug):             -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
    --     Linker flags (Release):      -Wl,--gc-sections -Wl,--as-needed
    --     Linker flags (Debug):        -Wl,--gc-sections -Wl,--as-needed
    --     ccache:                      NO
    --     Precompiled headers:         NO
    --     Extra dependencies:          ade /usr/lib/arm-linux-gnueabihf/libgtk-x11-2.0.so /usr/lib/arm-linux-gnueabihf/libgdk-x11-2.0.so /usr/lib/arm-linux-gnueabihf/libpangocairo-1.0.so /usr/lib/arm-linux-gnueabihf/libatk-1.0.so /usr/lib/arm-linux-gnueabihf/libcairo.so /usr/lib/arm-linux-gnueabihf/libgdk_pixbuf-2.0.so /usr/lib/arm-linux-gnueabihf/libgio-2.0.so /usr/lib/arm-linux-gnueabihf/libpangoft2-1.0.so /usr/lib/arm-linux-gnueabihf/libpango-1.0.so /usr/lib/arm-linux-gnueabihf/libgobject-2.0.so /usr/lib/arm-linux-gnueabihf/libglib-2.0.so /usr/lib/arm-linux-gnueabihf/libfontconfig.so /usr/lib/arm-linux-gnueabihf/libgthread-2.0.so /usr/lib/arm-linux-gnueabihf/libjpeg.so /usr/lib/arm-linux-gnueabihf/libwebp.so /usr/lib/arm-linux-gnueabihf/libpng.so /usr/local/lib/libz.so /usr/lib/arm-linux-gnueabihf/libtiff.so /usr/lib/arm-linux-gnueabihf/libfreetype.so /usr/lib/arm-linux-gnueabihf/libharfbuzz.so dl m pthread rt
    --     3rdparty dependencies:       ittnotify libprotobuf libopenjp2 IlmImf quirc
    --
    --   OpenCV modules:
    --     To be built:                 aruco bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dnn_superres dpm face features2d flann freetype fuzzy gapi hfs highgui img_hash imgcodecs imgproc intensity_transform line_descriptor mcc ml objdetect optflow phase_unwrapping photo plot quality rapid reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
    --     Disabled:                    world
    --     Disabled by dependency:      -
    --     Unavailable:                 alphamat cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv hdf java julia matlab ovis python2 python3 sfm ts viz
    --     Applications:                apps
    --     Documentation:               NO
    --     Non-free algorithms:         NO
    --
    --   GUI:
    --     GTK+:                        YES (ver 2.24.32)
    --       GThread :                  YES (ver 2.58.3)
    --       GtkGlExt:                  NO
    --     VTK support:                 NO
    --
    --   Media I/O:
    --     ZLib:                        /usr/local/lib/libz.so (ver 1.2.11)
    --     JPEG:                        /usr/lib/arm-linux-gnueabihf/libjpeg.so (ver 62)
    --     WEBP:                        /usr/lib/arm-linux-gnueabihf/libwebp.so (ver encoder: 0x020e)
    --     PNG:                         /usr/lib/arm-linux-gnueabihf/libpng.so (ver 1.6.36)
    --     TIFF:                        /usr/lib/arm-linux-gnueabihf/libtiff.so (ver 42 / 4.1.0)
    --     JPEG 2000:                   build (ver 2.3.1)
    --     OpenEXR:                     build (ver 2.3.0)
    --     HDR:                         YES
    --     SUNRASTER:                   YES
    --     PXM:                         YES
    --     PFM:                         YES
    --
    --   Video I/O:
    --     DC1394:                      YES (2.2.5)
    --     FFMPEG:                      NO
    --       avcodec:                   YES (58.129.100)
    --       avformat:                  YES (58.71.100)
    --       avutil:                    YES (56.67.100)
    --       swscale:                   YES (5.8.100)
    --       avresample:                YES (4.0.0)
    --     GStreamer:                   YES (1.14.4)
    --     v4l/v4l2:                    YES (linux/videodev2.h)
    --
    --   Parallel framework:            pthreads
    --
    --   Trace:                         YES (with Intel ITT)
    --
    --   Other third-party libraries:
    --     Lapack:                      NO
    --     Eigen:                       NO
    --     Custom HAL:                  NO
    --     Protobuf:                    build (3.5.1)
    --
    --   OpenCL:                        YES (no extra features)
    --     Include path:                /tmp/opencv/opencv-4.5.1/3rdparty/include/opencl/1.2
    --     Link libraries:              Dynamic load
    --
    --   Python (for build):            /usr/bin/python2.7
    --
    --   Java:
    --     ant:                         NO
    --     JNI:                         NO
    --     Java wrappers:               NO
    --     Java tests:                  NO
    --
    --   Install to:                    /usr/local
    -- -----------------------------------------------------------------
    --
    -- Configuring done
    -- Generating done
    -- Build files have been written to: /tmp/opencv/opencv-4.5.1/build