-- Detecting CXX compile features -- Detecting CXX compile features - done -- Check for working C compiler: /home/buildroot/autobuild/run/instance-1/output/host/bin/nios2-linux-gcc -- Check for working C compiler: /home/buildroot/autobuild/run/instance-1/output/host/bin/nios2-linux-gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Performing Test HAVE_CXX11 (check file: cmake/checks/cxx11.cpp) -- Performing Test HAVE_CXX11 - Success -- Found PythonInterp: /home/buildroot/autobuild/run/instance-1/output/host/bin/python2.7 (found suitable version "2.7.15", minimum required is "2.7") -- Found PythonLibs: /home/buildroot/autobuild/run/instance-1/output/host/nios2-buildroot-linux-gnu/sysroot/usr/lib32/libpython2.7.so (found suitable version "2.7.15", minimum required is "2.7") -- Cannot probe for Python/Numpy support (because we are cross-compiling OpenCV) -- If you want to enable Python/Numpy support, set the following variables: -- PYTHON2_INCLUDE_PATH -- PYTHON2_LIBRARIES (optional on Unix-like systems) -- PYTHON2_NUMPY_INCLUDE_DIRS -- PYTHON3_INCLUDE_PATH -- PYTHON3_LIBRARIES (optional on Unix-like systems) -- PYTHON3_NUMPY_INCLUDE_DIRS -- Found PythonInterp: /home/buildroot/autobuild/run/instance-1/output/host/bin/python3 (found suitable version "3.6.3", minimum required is "3.4") -- Could NOT find PythonLibs (missing: PYTHON_LIBRARIES PYTHON_INCLUDE_DIRS) (Required is at least version "3.6") -- Cannot probe for Python/Numpy support (because we are cross-compiling OpenCV) -- If you want to enable Python/Numpy support, set the following variables: -- PYTHON2_INCLUDE_PATH -- PYTHON2_LIBRARIES (optional on Unix-like systems) -- PYTHON2_NUMPY_INCLUDE_DIRS -- PYTHON3_INCLUDE_PATH -- PYTHON3_LIBRARIES (optional on Unix-like systems) -- PYTHON3_NUMPY_INCLUDE_DIRS -- 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_NARROWING -- Performing Test HAVE_CXX_WNO_NARROWING - Success -- Performing Test HAVE_C_WNO_NARROWING -- Performing Test HAVE_C_WNO_NARROWING - Success -- 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_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_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 -- OpenCV disables pkg-config to avoid using of host libraries. Consider using PKG_CONFIG_LIBDIR to specify target SYSROOT -- 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: /home/buildroot/autobuild/run/instance-1/output/host/nios2-buildroot-linux-gnu/sysroot/usr/lib32/libz.so (found suitable version "1.2.11", minimum required is "1.2.3") -- 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_UNUSED_LOCAL_TYPEDEFS -- Performing Test HAVE_CXX_WNO_UNUSED_LOCAL_TYPEDEFS - Success -- Performing Test HAVE_CXX_WNO_SIGN_COMPARE -- Performing Test HAVE_CXX_WNO_SIGN_COMPARE - Success -- Performing Test HAVE_CXX_WNO_SIGN_PROMO -- Performing Test HAVE_CXX_WNO_SIGN_PROMO - Success -- Performing Test HAVE_CXX_WNO_UNDEF -- Performing Test HAVE_CXX_WNO_UNDEF - 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_EXTRA -- Performing Test HAVE_CXX_WNO_EXTRA - 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 -- 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 - Failed -- Excluding from source files list: modules/core/src/convert.avx2.cpp -- Excluding from source files list: modules/core/src/convert.fp16.cpp -- Excluding from source files list: modules/core/src/convert.sse4_1.cpp -- Excluding from source files list: modules/imgproc/src/corner.avx.cpp -- Excluding from source files list: modules/imgproc/src/filter.avx2.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 -- Excluding from source files list: modules/imgproc/src/undistort.avx2.cpp -- Excluding from source files list: modules/objdetect/src/haar.avx.cpp -- Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': /home/buildroot/autobuild/run/instance-1/output/build/opencv3-3.4.2/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake -- Performing Test HAVE_CXX_WNO_PARENTHESES -- Performing Test HAVE_CXX_WNO_PARENTHESES - Success -- Performing Test HAVE_CXX_WNO_MAYBE_UNINITIALIZED -- Performing Test HAVE_CXX_WNO_MAYBE_UNINITIALIZED - Success -- Performing Test HAVE_CXX_WNO_DEPRECATED_DECLARATIONS -- Performing Test HAVE_CXX_WNO_DEPRECATED_DECLARATIONS - Success -- Performing Test HAVE_CXX_WNO_ERROR_NON_VIRTUAL_DTOR -- Performing Test HAVE_CXX_WNO_ERROR_NON_VIRTUAL_DTOR - Success -- Performing Test HAVE_CXX_WNO_ENUM_COMPARE -- Performing Test HAVE_CXX_WNO_ENUM_COMPARE - Success -- opencv_dnn: filter out ocl4dnn source code -- Excluding from source files list: /modules/dnn/layers/layers_common.avx.cpp -- Excluding from source files list: /modules/dnn/layers/layers_common.avx2.cpp -- Excluding from source files list: /modules/dnn/layers/layers_common.avx512_skx.cpp -- Excluding from source files list: modules/features2d/src/fast.avx2.cpp -- -- General configuration for OpenCV 3.4.2 ===================================== -- Version control: unknown -- -- Platform: -- Timestamp: 2018-08-04T05:55:35Z -- Host: Linux 4.4.0-119-generic x86_64 -- Target: Linux nios2 -- CMake: 3.8.2 -- CMake generator: Unix Makefiles -- CMake build tool: /usr/bin/make -- Configuration: Release -- -- CPU/HW features: -- Baseline: -- requested: DETECT -- -- C/C++: -- Built as dynamic libs?: YES -- C++11: YES -- C++ Compiler: /home/buildroot/autobuild/run/instance-1/output/host/bin/nios2-linux-g++ (ver 6.4.0) -- C++ flags (Release): -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -latomic -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-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -DNDEBUG -DNDEBUG -- C++ flags (Debug): -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -latomic -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-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -DDEBUG -D_DEBUG -- C Compiler: /home/buildroot/autobuild/run/instance-1/output/host/bin/nios2-linux-gcc -- C flags (Release): -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -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 -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -DNDEBUG -DNDEBUG -- C flags (Debug): -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -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 -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -DDEBUG -D_DEBUG -- Linker flags (Release): -- Linker flags (Debug): -- ccache: NO -- Precompiled headers: NO -- Extra dependencies: dl m pthread rt -- 3rdparty dependencies: -- -- OpenCV modules: -- To be built: calib3d core dnn features2d flann imgproc java_bindings_generator ml objdetect python_bindings_generator stitching video -- Disabled: highgui imgcodecs js photo shape superres videoio videostab world -- Disabled by dependency: - -- Unavailable: cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev java python2 python3 ts viz -- Applications: - -- Documentation: NO -- Non-free algorithms: NO -- -- GUI: -- -- Media I/O: -- ZLib: /home/buildroot/autobuild/run/instance-1/output/host/nios2-buildroot-linux-gnu/sysroot/usr/lib32/libz.so (ver 1.2.11) -- HDR: YES -- SUNRASTER: YES -- PXM: YES -- -- Video I/O: -- -- Parallel framework: pthreads -- -- Trace: YES (built-in) -- -- Other third-party libraries: -- Custom HAL: NO -- Protobuf: build (3.5.1) -- -- Python (for build): /home/buildroot/autobuild/run/instance-1/output/host/bin/python2.7 -- -- Install to: /usr -- ----------------------------------------------------------------- -- -- Configuring done -- Generating done CMake Warning: Manually-specified variables were not used by the project: BUILD_WITH_STATIC_CRT INSTALL_ANDROID_EXAMPLES WITH_AVFOUNDATION WITH_CARBON WITH_QUICKTIME -- Build files have been written to: /home/buildroot/autobuild/run/instance-1/output/build/opencv3-3.4.2/buildroot-build >>> opencv3 3.4.2 Building PATH="/home/buildroot/autobuild/run/instance-1/output/host/bin:/home/buildroot/autobuild/run/instance-1/output/host/sbin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games" /usr/bin/make -j4 -C /home/buildroot/autobuild/run/instance-1/output/build/opencv3-3.4.2//buildroot-build Scanning dependencies of target gen-pkgconfig [ 0%] Processing OpenCL kernels (core) [ 0%] Generate opencv.pc [ 0%] Built target gen-pkgconfig Scanning dependencies of target libprotobuf [ 1%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/arena.cc.o [ 1%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/arenastring.cc.o [ 1%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/extension_set.cc.o Scanning dependencies of target opencv_core [ 2%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/algorithm.cpp.o [ 2%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/generated_message_table_driven_lite.cc.o [ 3%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/generated_message_util.cc.o [ 3%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/alloc.cpp.o [ 3%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/io/coded_stream.cc.o [ 3%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/io/zero_copy_stream.cc.o [ 3%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/io/zero_copy_stream_impl_lite.cc.o [ 3%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/arithm.cpp.o [ 4%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/message_lite.cc.o /home/buildroot/autobuild/run/instance-1/output/build/opencv3-3.4.2/3rdparty/protobuf/src/google/protobuf/io/coded_stream.cc: In member function 'google::protobuf::int64 google::protobuf::io::CodedInputStream::ReadVarint32Fallback(google::protobuf::uint32)': /home/buildroot/autobuild/run/instance-1/output/build/opencv3-3.4.2/3rdparty/protobuf/src/google/protobuf/io/coded_stream.cc:421:12: warning: 'temp' may be used uninitialized in this function [-Wmaybe-uninitialized] return temp; ^~~~ /home/buildroot/autobuild/run/instance-1/output/build/opencv3-3.4.2/3rdparty/protobuf/src/google/protobuf/io/coded_stream.cc: In member function 'int google::protobuf::io::CodedInputStream::ReadVarintSizeAsIntFallback()': /home/buildroot/autobuild/run/instance-1/output/build/opencv3-3.4.2/3rdparty/protobuf/src/google/protobuf/io/coded_stream.cc:448:12: warning: 'temp' may be used uninitialized in this function [-Wmaybe-uninitialized] return temp; ^~~~ /home/buildroot/autobuild/run/instance-1/output/build/opencv3-3.4.2/3rdparty/protobuf/src/google/protobuf/io/coded_stream.cc: In member function 'google::protobuf::uint32 google::protobuf::io::CodedInputStream::ReadTagFallback(google::protobuf::uint32)': /home/buildroot/autobuild/run/instance-1/output/build/opencv3-3.4.2/3rdparty/protobuf/src/google/protobuf/io/coded_stream.cc:501:12: warning: 'tag' may be used uninitialized in this function [-Wmaybe-uninitialized] return tag; ^~~ [ 4%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/repeated_field.cc.o [ 4%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/atomicops_internals_x86_gcc.cc.o [ 4%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/bytestream.cc.o [ 5%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/common.cc.o [ 5%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/int128.cc.o [ 5%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/io_win32.cc.o [ 5%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/once.cc.o [ 6%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/status.cc.o [ 6%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/statusor.cc.o [ 6%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/stringpiece.cc.o [ 6%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/stringprintf.cc.o [ 7%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/structurally_valid.cc.o [ 7%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/strutil.cc.o [ 7%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/time.cc.o [ 7%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/wire_format_lite.cc.o [ 7%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/array.cpp.o [ 8%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/any.cc.o [ 8%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/any.pb.cc.o [ 8%] Building CXX object 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Specify CV_PAUSE() definition via compiler flags." [-Wcpp] # warning "Can't detect 'pause' (CPU-yield) instruction on the target platform. 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