make error

[nouhahammami]

whene i excute this command make -j5 i got this error

Building C object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_read.c.o
[ 24%] Building C object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_strip.c.o
[ 24%] Building C object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_swab.c.o
[ 24%] Building C object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_thunder.c.o
[ 24%] Building C object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_tile.c.o
[ 24%] Building C object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_version.c.o
[ 24%] Building C object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_warning.c.o
[ 24%] Building C object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_write.c.o
[ 24%] Building C object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_zip.c.o
[ 24%] Building CXX object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_stream.cxx.o
[ 24%] Building C object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_unix.c.o
Linking CXX static library ../lib/liblibtiff.a
[ 24%] Built target libtiff
make: *** [all] Error 2

[StevenPuttemans]

Could you run make with the -j5 and paste the complete output. Due to the 5 cores being used, the actual error is somewhere before the posted output. Without it it is impossible to help you.

[nouhahammami]

thanks for reply @StevenPuttemans
this is the first cmd cmake

> cmake -DOPENCV_EXTRA_MODULES_PATH=~/workspace/opencv_contrib-master/modules ~/workspace/opencv/opencv-master
> -- Detected version of GNU GCC: 48 (408)
> -- POPCNT is not supported by C++ compiler
> -- Could NOT find ZLIB (missing:  ZLIB_LIBRARY ZLIB_INCLUDE_DIR) (Required is at least version "1.2.3")
> -- Could NOT find TIFF (missing:  TIFF_LIBRARY TIFF_INCLUDE_DIR) 
> -- Could NOT find JPEG (missing:  JPEG_LIBRARY JPEG_INCLUDE_DIR) 
> -- Could NOT find Jasper (missing:  JASPER_LIBRARIES JASPER_INCLUDE_DIR) 
> -- Could NOT find ZLIB (missing:  ZLIB_INCLUDE_DIR) (found version "1.2.8")
> -- Could NOT find PNG (missing:  PNG_LIBRARY PNG_PNG_INCLUDE_DIR) 
> -- checking for module 'gtk+-3.0'
> --   package 'gtk+-3.0' not found
> -- checking for module 'gtk+-2.0'
> --   package 'gtk+-2.0' not found
> -- checking for module 'gthread-2.0'
> --   package 'gthread-2.0' not found
> -- checking for module 'gstreamer-base-1.0'
> --   package 'gstreamer-base-1.0' not found
> -- checking for module 'gstreamer-video-1.0'
> --   package 'gstreamer-video-1.0' not found
> -- checking for module 'gstreamer-app-1.0'
> --   package 'gstreamer-app-1.0' not found
> -- checking for module 'gstreamer-riff-1.0'
> --   package 'gstreamer-riff-1.0' not found
> -- checking for module 'gstreamer-pbutils-1.0'
> --   package 'gstreamer-pbutils-1.0' not found
> -- checking for module 'gstreamer-base-0.10'
> --   package 'gstreamer-base-0.10' not found
> -- checking for module 'gstreamer-video-0.10'
> --   package 'gstreamer-video-0.10' not found
> -- checking for module 'gstreamer-app-0.10'
> --   package 'gstreamer-app-0.10' not found
> -- checking for module 'gstreamer-riff-0.10'
> --   package 'gstreamer-riff-0.10' not found
> -- checking for module 'gstreamer-pbutils-0.10'
> --   package 'gstreamer-pbutils-0.10' not found
> -- checking for module 'libdc1394-2'
> --   package 'libdc1394-2' not found
> -- checking for module 'libdc1394'
> --   package 'libdc1394' not found
> -- Looking for linux/videodev.h
> -- Looking for linux/videodev.h - not found
> -- Looking for linux/videodev2.h
> -- Looking for linux/videodev2.h - found
> -- Looking for sys/videoio.h
> -- Looking for sys/videoio.h - not found
> -- checking for modules 'libavcodec;libavformat;libavutil;libswscale'
> --   package 'libavcodec' not found
> --   package 'libavformat' not found
> --   package 'libavutil' not found
> --   package 'libswscale' not found
> -- checking for module 'libavresample'
> --   package 'libavresample' not found
> -- checking for module 'libgphoto2'
> --   package 'libgphoto2' not found
> -- IPPICV: Download: ippicv_linux_20151201.tgz
> CMake Warning at cmake/OpenCVDownload.cmake:170 (message):
>   IPPICV: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>   3rdparty/ippicv/ippicv.cmake:27 (ocv_download)
>   cmake/OpenCVFindIPP.cmake:250 (download_ippicv)
>   cmake/OpenCVFindLibsPerf.cmake:37 (include)
>   CMakeLists.txt:571 (include)
> 
> 
> -- Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
> -- Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
> -- Could NOT find Atlas (missing:  Atlas_CBLAS_INCLUDE_DIR Atlas_CLAPACK_INCLUDE_DIR Atlas_CBLAS_LIBRARY Atlas_BLAS_LIBRARY Atlas_LAPACK_LIBRARY) 
> -- A library with BLAS API not found. Please specify library location.
> -- LAPACK requires BLAS
> -- A library with LAPACK API not found. Please specify library location.
> -- Could NOT find Doxygen (missing:  DOXYGEN_EXECUTABLE) 
> -- Could NOT find JNI (missing:  JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH) 
> -- Could NOT find Matlab (missing:  MATLAB_MEX_SCRIPT MATLAB_INCLUDE_DIRS MATLAB_ROOT_DIR MATLAB_LIBRARIES MATLAB_LIBRARY_DIRS MATLAB_MEXEXT MATLAB_ARCH MATLAB_BIN) 
> -- VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
> -- Caffe:   NO
> -- Protobuf:   NO
> -- Glog:   NO
> -- PROTOBUF: Download: protobuf-cpp-3.1.0.tar.gz
> CMake Warning at ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   PROTOBUF: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>   ~/workspace/opencv_contrib-master/modules/dnn/cmake/OpenCVFindLibProtobuf.cmake:32 (ocv_download)
>    ~/workspace/opencv_contrib-master/modules/dnn/CMakeLists.txt:5 (include)
> 
> 
> -- tiny-dnn: Download: v1.0.0a3.tar.gz
> CMake Warning at  ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   tiny-dnn: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>    ~/workspace/opencv_contrib-master/modules/dnn_modern/CMakeLists.txt:20 (ocv_download)
> 
> 
> -- Failed to download tiny-dnn sources
> -- Looking for tiny_dnn.h
> -- Looking for tiny_dnn.h - not found
> -- Module opencv_dnn_modern disabled because tiny-dnn was not found
> -- checking for one of the modules 'freetype2'
> -- checking for one of the modules 'harfbuzz'
> -- freetype2:   NO
> -- harfbuzz:    NO
> -- Could NOT find HDF5 (missing:  HDF5_LIBRARIES HDF5_INCLUDE_DIRS) 
> -- 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 modules 'tesseract;lept'
> --   package 'tesseract' not found
> --   package 'lept' not found
> -- Tesseract:   NO
> -- xfeatures2d/boostdesc: Download: boostdesc_bgm.i
> CMake Warning at  ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/boostdesc: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_boostdesc.cmake:22 (ocv_download)
>   ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:8 (download_boost_descriptors)
> 
> 
> -- xfeatures2d/boostdesc: Download: boostdesc_bgm_bi.i
> CMake Warning at  ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/boostdesc: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>   ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_boostdesc.cmake:22 (ocv_download)
>   ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:8 (download_boost_descriptors)
> 
> 
> -- xfeatures2d/boostdesc: Download: boostdesc_bgm_hd.i
> CMake Warning at  ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/boostdesc: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>   ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_boostdesc.cmake:22 (ocv_download)
>   / ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:8 (download_boost_descriptors)
> 
> 
> -- xfeatures2d/boostdesc: Download: boostdesc_binboost_064.i
> CMake Warning at ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/boostdesc: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_boostdesc.cmake:22 (ocv_download)
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:8 (download_boost_descriptors)
> 
> 
> -- xfeatures2d/boostdesc: Download: boostdesc_binboost_128.i
> CMake Warning at  ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/boostdesc: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>   ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_boostdesc.cmake:22 (ocv_download)
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:8 (download_boost_descriptors)
> 
> 
> -- xfeatures2d/boostdesc: Download: boostdesc_binboost_256.i
> CMake Warning at ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/boostdesc: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_boostdesc.cmake:22 (ocv_download)
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:8 (download_boost_descriptors)
> 
> 
> -- xfeatures2d/boostdesc: Download: boostdesc_lbgm.i
> CMake Warning at ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/boostdesc: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>   ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_boostdesc.cmake:22 (ocv_download)
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:8 (download_boost_descriptors)
> 
> 
> -- xfeatures2d/vgg: Download: vgg_generated_48.i
> CMake Warning at ~workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/vgg: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_vgg.cmake:16 (ocv_download)
>  ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:9 (download_vgg_descriptors)
> 
> 
> -- xfeatures2d/vgg: Download: vgg_generated_64.i
> CMake Warning at  ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/vgg: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_vgg.cmake:16 (ocv_download)
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:9 (download_vgg_descriptors)
> 
> 
> -- xfeatures2d/vgg: Download: vgg_generated_80.i
> CMake Warning at  ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/vgg: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>   ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_vgg.cmake:16 (ocv_download)
>   ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:9 (download_vgg_descriptors)
> 
> 
> -- xfeatures2d/vgg: Download: vgg_generated_120.i
> CMake Warning at  ~/workspace/opencv/opencv-master/cmake/OpenCVDownload.cmake:170 (message):
>   xfeatures2d/vgg: Download failed: 1;"Unsupported protocol"
> Call Stack (most recent call first):
>    ~/workspace/opencv_contrib-master/modules/xfeatures2d/cmake/download_vgg.cmake:16 (ocv_download)
>   ~/workspace/opencv_contrib-master/modules/xfeatures2d/CMakeLists.txt:9 (download_vgg_descriptors)
> 
> 
> -- 
> -- General configuration for OpenCV 3.2.0-dev =====================================
> --   Version control:               unknown
> -- 
> --   Extra modules:
> --     Location (extra):             ~/workspace/opencv_contrib-master/modules
> --     Version control (extra):     unknown
> -- 
> --   Platform:
> --     Timestamp:                   2017-04-20T13:45:39Z
> --     Host:                        Linux 4.4.0-31-generic x86_64
> --     CMake:                       3.2.2
> --     CMake generator:             Unix Makefiles
> --     CMake build tool:            /usr/bin/make
> --     Configuration:               Release
> -- 
> --   CPU/HW features:
> --     Baseline:                    SSE SSE2 SSE3 SSSE3
> --       requested:                 SSSE3
> --     Dispatched code generation:  SSE4_1 FP16 AVX AVX2
> --       requested:                 SSE4_1 AVX FP16 AVX2
> --       SSE4_1 (0 files):          + SSE4_1
> --       FP16 (0 files):            + SSE4_1 SSE4_2 FP16 AVX
> --       AVX (1 files):             + SSE4_1 SSE4_2 AVX
> --       AVX2 (1 files):            + SSE4_1 SSE4_2 FP16 FMA3 AVX AVX2
> -- 
> --   C/C++:
> --     Built as dynamic libs?:      YES
> --     C++ Compiler:                /usr/bin/c++  (ver 4.8.4)
> --     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 -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections  -msse -msse2 -msse3 -mssse3 -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 -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections  -msse -msse2 -msse3 -mssse3 -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 -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections  -msse -msse2 -msse3 -mssse3 -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 -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections  -msse -msse2 -msse3 -mssse3 -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
> --     Linker flags (Release):
> --     Linker flags (Debug):
> --     ccache:                      NO
> --     Precompiled headers:         YES
> --     Extra dependencies:          dl m pthread rt
> --     3rdparty dependencies:       zlib libjpeg libwebp libpng libtiff libjasper IlmImf
> -- 
> --   OpenCV modules:
> --     To be built:                 core flann imgproc ml objdetect phase_unwrapping photo plot reg surface_matching video xphoto bgsegm face fuzzy imgcodecs shape videoio xobjdetect highgui superres ts bioinspired dpm features2d line_descriptor saliency text calib3d ccalib datasets rgbd stereo structured_light tracking videostab xfeatures2d ximgproc aruco optflow stitching
> --     Disabled:                    world contrib_world
> --     Disabled by dependency:      -
> --     Unavailable:                 cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev java python2 python3 viz cnn_3dobj cvv dnn dnn_modern freetype hdf matlab sfm xfeatures2d
> -- 
> --   GUI: 
> --     QT:                          NO
> --     GTK+:                        NO
> --     GThread :                    NO
> --     GtkGlExt:                    NO
> --     OpenGL support:              NO
> --     VTK support:                 NO
> -- 
> --   Media I/O: 
> --     ZLib:                        zlib (ver 1.2.8)
> --     JPEG:                        libjpeg (ver 90)
> --     WEBP:                        build (ver encoder: 0x020e)
> --     PNG:                         build (ver 1.6.24)
> --     TIFF:                        build (ver 42 - 4.0.2)
> --     JPEG 2000:                   build (ver 1.900.1)
> --     OpenEXR:                     build (ver 1.7.1)
> --     GDAL:                        NO
> --     GDCM:                        NO
> -- 
> --   Video I/O:
> --     DC1394 1.x:                  NO
> --     DC1394 2.x:                  NO
> --     FFMPEG:                      NO
> --       avcodec:                   NO
> --       avformat:                  NO
> --       avutil:                    NO
> --       swscale:                   NO
> --       avresample:                NO
> --     GStreamer:                   NO
> --     OpenNI:                      NO
> --     OpenNI PrimeSensor Modules:  NO
> --     OpenNI2:                     NO
> --     PvAPI:                       NO
> --     GigEVisionSDK:               NO
> --     Aravis SDK:                  NO
> --     UniCap:                      NO
> --     UniCap ucil:                 NO
> --     V4L/V4L2:                    NO/YES
> --     XIMEA:                       NO
> --     Xine:                        NO
> --     gPhoto2:                     NO
> -- 
> --   Parallel framework:            pthreads
> -- 
> --   Other third-party libraries:
> --     Use IPP:                     IPP not found or implicitly disabled
> --     Use IPP Async:               NO
> --     Use VA:                      NO
> --     Use Intel VA-API/OpenCL:     NO
> --     Use Lapack:                  NO
> --     Use Eigen:                   NO
> --     Use Cuda:                    NO
> --     Use OpenCL:                  YES
> --     Use OpenVX:                  NO
> --     Use custom HAL:              NO
> -- 
> --   OpenCL:                        <Dynamic loading of OpenCL library>
> --     Include path:                ~/workspace/opencv/opencv-master/3rdparty/include/opencl/1.2
> --     Use AMDFFT:                  NO
> --     Use AMDBLAS:                 NO
> -- 
> --   Python 2:
> --     Interpreter:                 /usr/bin/python2.7 (ver 2.7.6)
> -- 
> --   Python 3:
> --     Interpreter:                 /usr/bin/python3.4 (ver 3.4.3)
> -- 
> --   Python (for build):            /usr/bin/python2.7
> -- 
> --   Java:
> --     ant:                         NO
> --     JNI:                         NO
> --     Java wrappers:               NO
> --     Java tests:                  NO
> -- 
> --   Matlab:                        Matlab not found or implicitly disabled
> -- 
> --   Documentation:
> --     Doxygen:                     NO
> -- 
> --   Tests and samples:
> --     Tests:                       YES
> --     Performance tests:           YES
> --     C/C++ Examples:              NO
> -- 
> --   Install path:                  /usr/local
> -- 
> --   cvconfig.h is in:              ~/workspace/build
> -- -----------------------------------------------------------------
> -- 
> -- Configuring done
> -- Generating done
> -- Build files have been written to:  ~/workspace/build
> 

and this the output of make -j5

Scanning dependencies of target opencv_core_pch_dephelp
[  1%] Built target zlib
[  4%] [  7%] Built target libjasper
[  7%] Built target libjpeg
Building CXX object modules/core/CMakeFiles/opencv_core_pch_dephelp.dir/opencv_core_pch_dephelp.cxx.o
Scanning dependencies of target opencv_ts_pch_dephelp
Scanning dependencies of target opencv_imgproc_pch_dephelp
Scanning dependencies of target opencv_imgcodecs_pch_dephelp
[  7%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc_pch_dephelp.dir/opencv_imgproc_pch_dephelp.cxx.o
[  8%] [ 16%] Built target libwebp
Building CXX object modules/ts/CMakeFiles/opencv_ts_pch_dephelp.dir/opencv_ts_pch_dephelp.cxx.o
[ 16%] Building CXX object modules/imgcodecs/CMakeFiles/opencv_imgcodecs_pch_dephelp.dir/opencv_imgcodecs_pch_dephelp.cxx.o
Scanning dependencies of target opencv_videoio_pch_dephelp
[ 16%] Building CXX object modules/videoio/CMakeFiles/opencv_videoio_pch_dephelp.dir/opencv_videoio_pch_dephelp.cxx.o
Linking CXX static library ../../lib/libopencv_ts_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_core_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_imgcodecs_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_imgproc_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_videoio_pch_dephelp.a
[ 16%] [ 16%] [ 16%] [ 16%] [ 16%] Built target opencv_imgcodecs_pch_dephelp
Built target opencv_core_pch_dephelp
Built target opencv_imgproc_pch_dephelp
Built target opencv_ts_pch_dephelp
Built target opencv_videoio_pch_dephelp
Scanning dependencies of target opencv_flann_pch_dephelp
Scanning dependencies of target opencv_highgui_pch_dephelp
Scanning dependencies of target opencv_test_flann_pch_dephelp
Scanning dependencies of target opencv_perf_core_pch_dephelp
Scanning dependencies of target opencv_test_core_pch_dephelp
[ 16%] [ 16%] [ 16%] Building CXX object modules/flann/CMakeFiles/opencv_flann_pch_dephelp.dir/opencv_flann_pch_dephelp.cxx.o
[ 16%] [ 17%] Building CXX object modules/highgui/CMakeFiles/opencv_highgui_pch_dephelp.dir/opencv_highgui_pch_dephelp.cxx.o
Building CXX object modules/core/CMakeFiles/opencv_test_core_pch_dephelp.dir/opencv_test_core_pch_dephelp.cxx.o
Building CXX object modules/core/CMakeFiles/opencv_perf_core_pch_dephelp.dir/opencv_perf_core_pch_dephelp.cxx.o
Building CXX object modules/flann/CMakeFiles/opencv_test_flann_pch_dephelp.dir/opencv_test_flann_pch_dephelp.cxx.o
Linking CXX static library ../../lib/libopencv_flann_pch_dephelp.a
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[ 17%] [ 17%] [ 17%] [ 17%] [ 17%] Built target opencv_flann_pch_dephelp
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Scanning dependencies of target opencv_test_ml_pch_dephelp
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Building CXX object modules/ml/CMakeFiles/opencv_test_ml_pch_dephelp.dir/opencv_test_ml_pch_dephelp.cxx.o
[ 17%] [ 17%] Building CXX object modules/imgproc/CMakeFiles/opencv_perf_imgproc_pch_dephelp.dir/opencv_perf_imgproc_pch_dephelp.cxx.o
Building CXX object modules/imgproc/CMakeFiles/opencv_test_imgproc_pch_dephelp.dir/opencv_test_imgproc_pch_dephelp.cxx.o
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[ 17%] [ 17%] [ 17%] [ 17%] [ 17%] Built target opencv_test_ml_pch_dephelp
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[ 18%] [ 18%] Building CXX object modules/phase_unwrapping/CMakeFiles/opencv_test_phase_unwrapping_pch_dephelp.dir/opencv_test_phase_unwrapping_pch_dephelp.cxx.o
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[ 18%] Building CXX object modules/reg/CMakeFiles/opencv_perf_reg_pch_dephelp.dir/opencv_perf_reg_pch_dephelp.cxx.o
[ 18%] Building CXX object modules/reg/CMakeFiles/opencv_test_reg_pch_dephelp.dir/opencv_test_reg_pch_dephelp.cxx.o
[ 18%] Building CXX object modules/plot/CMakeFiles/opencv_plot_pch_dephelp.dir/opencv_plot_pch_dephelp.cxx.o
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[ 18%] Built target opencv_reg_pch_dephelp
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[ 19%] Building CXX object modules/surface_matching/CMakeFiles/opencv_surface_matching_pch_dephelp.dir/opencv_surface_matching_pch_dephelp.cxx.o
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[ 19%] Built target opencv_plot_pch_dephelp
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[ 19%] [ 19%] [ 19%] Built target opencv_perf_reg_pch_dephelp
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[ 19%] Building CXX object modules/bgsegm/CMakeFiles/opencv_bgsegm_pch_dephelp.dir/opencv_bgsegm_pch_dephelp.cxx.o
[ 19%] [ 19%] [ 19%] [ 19%] Building CXX object modules/video/CMakeFiles/opencv_test_video_pch_dephelp.dir/opencv_test_video_pch_dephelp.cxx.o
Building CXX object modules/video/CMakeFiles/opencv_perf_video_pch_dephelp.dir/opencv_perf_video_pch_dephelp.cxx.o
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Building CXX object modules/xphoto/CMakeFiles/opencv_test_xphoto_pch_dephelp.dir/opencv_test_xphoto_pch_dephelp.cxx.o
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[ 19%] [ 19%] [ 19%] [ 19%] [ 19%] Built target opencv_bgsegm_pch_dephelp
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[ 20%] Building CXX object modules/features2d/CMakeFiles/opencv_features2d_pch_dephelp.dir/opencv_features2d_pch_dephelp.cxx.o
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[ 20%] Building CXX object modules/line_descriptor/CMakeFiles/opencv_perf_line_descriptor_pch_dephelp.dir/opencv_perf_line_descriptor_pch_dephelp.cxx.o
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[ 20%] Building CXX object modules/line_descriptor/CMakeFiles/opencv_test_line_descriptor_pch_dephelp.dir/opencv_test_line_descriptor_pch_dephelp.cxx.o
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[ 20%] Building CXX object modules/saliency/CMakeFiles/opencv_saliency_pch_dephelp.dir/opencv_saliency_pch_dephelp.cxx.o
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[ 20%] Building CXX object modules/calib3d/CMakeFiles/opencv_calib3d_pch_dephelp.dir/opencv_calib3d_pch_dephelp.cxx.o
[ 20%] Building CXX object modules/text/CMakeFiles/opencv_test_text_pch_dephelp.dir/opencv_test_text_pch_dephelp.cxx.o
[ 20%] Building CXX object modules/text/CMakeFiles/opencv_text_pch_dephelp.dir/opencv_text_pch_dephelp.cxx.o
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Linking CXX static library ../../lib/libopencv_text_pch_dephelp.a
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[ 20%] [ 20%] [ 20%] [ 20%] [ 20%] Built target opencv_text_pch_dephelp
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[ 20%] Building CXX object modules/stereo/CMakeFiles/opencv_stereo_pch_dephelp.dir/opencv_stereo_pch_dephelp.cxx.o
[ 21%] [ 21%] [ 21%] [ 21%] Building CXX object modules/stereo/CMakeFiles/opencv_perf_stereo_pch_dephelp.dir/opencv_perf_stereo_pch_dephelp.cxx.o
Building CXX object modules/rgbd/CMakeFiles/opencv_rgbd_pch_dephelp.dir/opencv_rgbd_pch_dephelp.cxx.o
Building CXX object modules/ccalib/CMakeFiles/opencv_ccalib_pch_dephelp.dir/opencv_ccalib_pch_dephelp.cxx.o
Building CXX object modules/rgbd/CMakeFiles/opencv_test_rgbd_pch_dephelp.dir/opencv_test_rgbd_pch_dephelp.cxx.o
Linking CXX static library ../../lib/libopencv_test_rgbd_pch_dephelp.a
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[ 22%] [ 22%] Building CXX object modules/tracking/CMakeFiles/opencv_perf_tracking_pch_dephelp.dir/opencv_perf_tracking_pch_dephelp.cxx.o
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[ 22%] [ 22%] [ 22%] [ 22%] [ 22%] Built target opencv_tracking_pch_dephelp
Built target opencv_structured_light_pch_dephelp
Built target opencv_test_stereo_pch_dephelp
Built target opencv_test_structured_light_pch_dephelp
Built target opencv_perf_tracking_pch_dephelp
Scanning dependencies of target opencv_videostab_pch_dephelp
Scanning dependencies of target opencv_perf_xfeatures2d_pch_dephelp
Scanning dependencies of target opencv_test_xfeatures2d_pch_dephelp
Scanning dependencies of target opencv_xfeatures2d_pch_dephelp
Scanning dependencies of target opencv_test_tracking_pch_dephelp
[ 22%] [ 22%] Building CXX object modules/xfeatures2d/CMakeFiles/opencv_xfeatures2d_pch_dephelp.dir/opencv_xfeatures2d_pch_dephelp.cxx.o
[ 22%] Building CXX object modules/videostab/CMakeFiles/opencv_videostab_pch_dephelp.dir/opencv_videostab_pch_dephelp.cxx.o
Building CXX object modules/xfeatures2d/CMakeFiles/opencv_perf_xfeatures2d_pch_dephelp.dir/opencv_perf_xfeatures2d_pch_dephelp.cxx.o
[ 22%] Building CXX object modules/xfeatures2d/CMakeFiles/opencv_test_xfeatures2d_pch_dephelp.dir/opencv_test_xfeatures2d_pch_dephelp.cxx.o
[ 22%] Building CXX object modules/tracking/CMakeFiles/opencv_test_tracking_pch_dephelp.dir/opencv_test_tracking_pch_dephelp.cxx.o
Linking CXX static library ../../lib/libopencv_videostab_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_test_xfeatures2d_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_perf_xfeatures2d_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_xfeatures2d_pch_dephelp.a
[ 22%] [ 22%] [ 22%] [ 22%] Built target opencv_perf_xfeatures2d_pch_dephelp
Built target opencv_videostab_pch_dephelp
Built target opencv_xfeatures2d_pch_dephelp
Built target opencv_test_xfeatures2d_pch_dephelp
Scanning dependencies of target opencv_perf_ximgproc_pch_dephelp
Scanning dependencies of target opencv_aruco_pch_dephelp
Scanning dependencies of target opencv_ximgproc_pch_dephelp
Scanning dependencies of target opencv_test_ximgproc_pch_dephelp
[ 22%] [ 22%] Building CXX object modules/aruco/CMakeFiles/opencv_aruco_pch_dephelp.dir/opencv_aruco_pch_dephelp.cxx.o
Building CXX object modules/ximgproc/CMakeFiles/opencv_ximgproc_pch_dephelp.dir/opencv_ximgproc_pch_dephelp.cxx.o
[ 22%] [ 22%] Building CXX object modules/ximgproc/CMakeFiles/opencv_test_ximgproc_pch_dephelp.dir/opencv_test_ximgproc_pch_dephelp.cxx.o
Building CXX object modules/ximgproc/CMakeFiles/opencv_perf_ximgproc_pch_dephelp.dir/opencv_perf_ximgproc_pch_dephelp.cxx.o
Linking CXX static library ../../lib/libopencv_test_tracking_pch_dephelp.a
[ 22%] Built target opencv_test_tracking_pch_dephelp
Scanning dependencies of target opencv_test_aruco_pch_dephelp
[ 22%] Building CXX object modules/aruco/CMakeFiles/opencv_test_aruco_pch_dephelp.dir/opencv_test_aruco_pch_dephelp.cxx.o
Linking CXX static library ../../lib/libopencv_test_aruco_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_ximgproc_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_test_ximgproc_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_aruco_pch_dephelp.a
[ 22%] [ 22%] [ 22%] [ 22%] Built target opencv_ximgproc_pch_dephelp
Built target opencv_test_aruco_pch_dephelp
Built target opencv_aruco_pch_dephelp
Built target opencv_test_ximgproc_pch_dephelp
Scanning dependencies of target opencv_stitching_pch_dephelp
Scanning dependencies of target opencv_perf_optflow_pch_dephelp
Scanning dependencies of target opencv_test_optflow_pch_dephelp
Scanning dependencies of target opencv_optflow_pch_dephelp
[ 22%] Building CXX object modules/optflow/CMakeFiles/opencv_optflow_pch_dephelp.dir/opencv_optflow_pch_dephelp.cxx.o
[ 22%] [ 22%] [ 22%] Building CXX object modules/stitching/CMakeFiles/opencv_stitching_pch_dephelp.dir/opencv_stitching_pch_dephelp.cxx.o
Building CXX object modules/optflow/CMakeFiles/opencv_test_optflow_pch_dephelp.dir/opencv_test_optflow_pch_dephelp.cxx.o
Building CXX object modules/optflow/CMakeFiles/opencv_perf_optflow_pch_dephelp.dir/opencv_perf_optflow_pch_dephelp.cxx.o
In file included from ~/workspace/opencv/opencv-master/modules/stitching/include/opencv2/stitching.hpp:49:0,
                 from ~/workspace/opencv/opencv-master/modules/stitching/src/precomp.hpp:59,
                 from ~/workspace/build/modules/stitching/opencv_stitching_pch_dephelp.cxx:1:
~/workspace/opencv/opencv-master/modules/stitching/include/opencv2/stitching/detail/matchers.hpp:52:42: fatal error: opencv2/xfeatures2d/cuda.hpp: No such file or directory
 #  include "opencv2/xfeatures2d/cuda.hpp"
                                          ^
compilation terminated.
make[2]: *** [modules/stitching/CMakeFiles/opencv_stitching_pch_dephelp.dir/opencv_stitching_pch_dephelp.cxx.o] Error 1
make[1]: *** [modules/stitching/CMakeFiles/opencv_stitching_pch_dephelp.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
Linking CXX static library ../../lib/libopencv_optflow_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_perf_optflow_pch_dephelp.a
Linking CXX static library ../../lib/libopencv_test_optflow_pch_dephelp.a
[ 22%] [ 22%] [ 22%] Built target opencv_perf_optflow_pch_dephelp
Built target opencv_test_optflow_pch_dephelp
Built target opencv_optflow_pch_dephelp
Linking CXX static library ../../lib/libopencv_perf_ximgproc_pch_dephelp.a
[ 22%] Built target opencv_perf_ximgproc_pch_dephelp
make: *** [all] Error 2
xx@ubuntu:~//workspace/build$ 

[StevenPuttemans]

So let us reduce this down to the actual error which is

In file included from ~/workspace/opencv/opencv-master/modules/stitching/include/opencv2/stitching.hpp:49:0,
                 from ~/workspace/opencv/opencv-master/modules/stitching/src/precomp.hpp:59,
                 from ~/workspace/build/modules/stitching/opencv_stitching_pch_dephelp.cxx:1:
~/workspace/opencv/opencv-master/modules/stitching/include/opencv2/stitching/detail/matchers.hpp:52:42: fatal error: opencv2/xfeatures2d/cuda.hpp: No such file or directory
 #  include "opencv2/xfeatures2d/cuda.hpp"
                                          ^

Looking at your CMAKE this is expected to fail, since Use Cuda: NO means no CUDA installation has been found on your system. However, xfeatures2d should not have a dependency on CUDA if CUDA has been disabled by CMAKE.

@alalek could you take a look at this? This seems like an actual bug.

[alalek]

This include statement is guarded by this condition:

#ifdef HAVE_OPENCV_XFEATURES2D
#  include "opencv2/xfeatures2d/cuda.hpp"
#endif

CMake says that xfeatures2d module is not available, so this should not be called. But it is processed...

Reviewing of xfeatures2d config shows that current disabling approach doesn't work well (module disabling is called after a commitment for the final modules list).

Current workaround is to disable xfeatured2d manually: cmake -DBUILD_opencv_xfeatures2d=OFF ...

Reproducer (all downloads are failed): http://pullrequest.opencv.org/buildbot/builders/master-contrib_valgrind-lin64-debug/builds/10013

[skvark]

I had the same issue but managed to solve it. As far as I can see, the real problem is caused by the failed downloads:

Download failed: 1;"unsupported protocol"

I believe that in my case this occured because my cmake version had no HTTPS support. To fix this, you have to install or build cmake with HTTPS support. In my case the easiest way was to build cmake from sources against system's own curl (which has HTTPS support):

wget --no-check-certificate https://cmake.org/files/v3.9/cmake-3.9.0.tar.gz
tar -zxvf cmake-3.9.0.tar.gz
cd cmake-3.9.0
# need to build against system curl to get https support
# -> install devel packages
yum -y install curl-devel zlib-devel
./bootstrap --system-curl
make && make install

I think that opencv-contrib's cmake should fail with a better error message if there's no HTTPS support.

[tomrunia]

Thanks a lot @skvark for your recommendation of rebuilding Cmake with HTTPS support. I was running into the same problems of xfeatures2d not building because the downloads failed.

[bikmaeff]

Another reason not to download the package could be a network connection through a proxy server.

[Eyenga]

Hey, guys sorry to reopen this but I wasn't really sure where else to go. I am having the same problem and did what was suggested by @skvark and the following was the output when running cmake

-- Looking for ccache - not found
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found suitable version "1.2.8", minimum required is "1.2.3") 
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.8") 
-- Checking for module 'gstreamer-base-1.0'
--   No package 'gstreamer-base-1.0' found
-- Checking for module 'gstreamer-video-1.0'
--   No package 'gstreamer-video-1.0' found
-- Checking for module 'gstreamer-app-1.0'
--   No package 'gstreamer-app-1.0' found
-- Checking for module 'gstreamer-riff-1.0'
--   No package 'gstreamer-riff-1.0' found
-- Checking for module 'gstreamer-pbutils-1.0'
--   No package 'gstreamer-pbutils-1.0' found
-- Checking for module 'gstreamer-base-0.10'
--   No package 'gstreamer-base-0.10' found
-- Checking for module 'gstreamer-video-0.10'
--   No package 'gstreamer-video-0.10' found
-- Checking for module 'gstreamer-app-0.10'
--   No package 'gstreamer-app-0.10' found
-- Checking for module 'gstreamer-riff-0.10'
--   No package 'gstreamer-riff-0.10' found
-- Checking for module 'gstreamer-pbutils-0.10'
--   No package 'gstreamer-pbutils-0.10' found
-- Checking for module 'libdc1394-2'
--   Found libdc1394-2, version 2.2.4
-- Looking for linux/videodev.h
-- Looking for linux/videodev.h - not found
-- Looking for linux/videodev2.h
-- Looking for linux/videodev2.h - found
-- Looking for sys/videoio.h
-- Looking for sys/videoio.h - not found
-- Checking for module 'libavresample'
--   No package 'libavresample' found
-- Checking for module 'libgphoto2'
--   No package 'libgphoto2' found
-- Found TBB: /usr/lib/x86_64-linux-gnu/libtbb.so
-- IPPICV: Download: ippicv_2017u3_lnx_intel64_general_20170822.tgz
-- found Intel IPP (ICV version): 2017.0.3 [2017.0.3]
-- at: /home/tank/Programming/opencv/build/3rdparty/ippicv/ippicv_lnx
-- found Intel IPP IW sources: 2017.0.3
-- at: /home/tank/Programming/opencv/build/3rdparty/ippicv/ippiw_lnx
-- Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
-- Could NOT find Atlas (missing: Atlas_CLAPACK_INCLUDE_DIR) 
-- Looking for dgemm_
-- Looking for dgemm_ - found
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - found
-- Found Threads: TRUE  
-- A library with BLAS API found.
-- Looking for cheev_
-- Looking for cheev_ - found
-- A library with LAPACK API found.
-- Found Doxygen: /usr/bin/doxygen (found version "1.8.11") found components:  doxygen missing components:  dot
-- Could NOT find JNI (missing: JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH) 
-- Could NOT find Pylint (missing: PYLINT_EXECUTABLE) 
-- Could NOT find Matlab (missing: MATLAB_MEX_SCRIPT MATLAB_INCLUDE_DIRS MATLAB_ROOT_DIR MATLAB_LIBRARIES MATLAB_LIBRARY_DIRS MATLAB_MEXEXT MATLAB_ARCH MATLAB_BIN) 
-- VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
-- Looking for dlerror in dl
-- Looking for dlerror in dl - found
-- Performing Test HAVE_C_WNO_UNDEF
-- Performing Test HAVE_C_WNO_UNDEF - Success
-- Performing Test HAVE_C_WNO_SIGN_COMPARE
-- Performing Test HAVE_C_WNO_SIGN_COMPARE - Success
-- Performing Test HAVE_CXX_WNO_MISSING_PROTOTYPES
-- Performing Test HAVE_CXX_WNO_MISSING_PROTOTYPES - Failed
-- 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 - Failed
-- Performing Test HAVE_CXX_WNO_SHORTEN_64_TO_32
-- Performing Test HAVE_CXX_WNO_SHORTEN_64_TO_32 - Failed
-- Caffe:   NO
-- Protobuf:   NO
-- Glog:   NO
-- tiny-dnn: Download: v1.0.0a3.tar.gz
-- Looking for tiny_dnn.h
-- Looking for tiny_dnn.h - found
-- Found tiny-dnn in: /home/tank/Programming/opencv/build/3rdparty/tinydnn/tiny-dnn-1.0.0a3
-- Performing Test COMPILER_SUPPORTS_CXX11
-- Performing Test COMPILER_SUPPORTS_CXX11 - Success
-- The protocol buffer compiler is not found (PROTOBUF_PROTOC_EXECUTABLE='')
-- Checking for one of the modules 'freetype2'
-- Checking for one of the modules 'harfbuzz'
-- freetype2:   YES
-- harfbuzz:    YES
-- Could NOT find HDF5 (missing: HDF5_LIBRARIES HDF5_INCLUDE_DIRS) 
-- 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
-- Excluding from source files list: /home/tank/Programming/opencv/build/modules/imgproc/accum.neon.cpp
-- Performing Test HAVE_CXX_WNO_MAYBE_UNINITIALIZED
-- Performing Test HAVE_CXX_WNO_MAYBE_UNINITIALIZED - Success
-- Performing Test HAVE_CXX_WNO_ENUM_COMPARE
-- Performing Test HAVE_CXX_WNO_ENUM_COMPARE - Success
-- Torch importer has been enabled. To run the tests you have to install Torch ('th' executable should be available) and generate testdata using opencv_extra/testdata/dnn/generate_torch_models.py script.
-- freetype2:   YES
-- harfbuzz:    YES
-- Performing Test HAVE_CXX_WNO_OVERLOADED_VIRTUAL
-- Performing Test HAVE_CXX_WNO_OVERLOADED_VIRTUAL - Success
-- Checking for modules 'tesseract;lept'
--   No package 'tesseract' found
--   No package 'lept' found
-- Tesseract:   NO
-- xfeatures2d/boostdesc: Download: boostdesc_bgm.i
CMake Error at /home/tank/Programming/opencv/cmake/OpenCVDownload.cmake:38 (file):
  Syntax error in cmake code at

    /home/tank/Programming/opencv/cmake/OpenCVDownload.cmake:38

  when parsing string

    #   Trying 151.101.200.133...

  # Connected to raw.githubusercontent.com (151.101.200.133) port 443 (#0)

  # found 148 certificates in /etc/ssl/certs/ca-certificates.crt

  # found 604 certificates in /etc/ssl/certs

  # ALPN, offering http/1.1

  # SSL connection using TLS1.2 / ECDHE_RSA_AES_128_GCM_SHA256

  # 	 server certificate verification SKIPPED

  # 	 server certificate status verification SKIPPED

  # 	 common name: www.github.com (matched)

  # 	 server certificate expiration date OK

  # 	 server certificate activation date OK

  # 	 certificate public key: RSA

  # 	 certificate version: #3

  # 	 subject: C=US,ST=California,L=San Francisco,O=GitHub\,
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  # 	 start date: Thu, 23 Mar 2017 00:00:00 GMT

  # 	 expire date: Wed, 13 May 2020 12:00:00 GMT

  # 	 issuer: C=US,O=DigiCert Inc,OU=www.digicert.com,CN=DigiCert SHA2 High
  Assurance Server CA

  # 	 compression: NULL

  # ALPN, server accepted to use http/1.1

  # GET
  /opencv/opencv_3rdparty/34e4206aef44d50e6bbcd0ab06354b52e7466d26/boostdesc_bgm.i
  HTTP/1.1

  # Host: raw.githubusercontent.com

  # User-Agent: curl/7.47.0

  # Accept: */*

  # 

  # HTTP/1.1 200 OK

  # Content-Security-Policy: default-src 'none'; style-src 'unsafe-inline';
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  \n

  Invalid escape sequence \,
Call Stack (most recent call first):
  /home/tank/Programming/opencv/cmake/OpenCVDownload.cmake:162 (ocv_download_log)
  /home/tank/Programming/opencv_contrib/modules/xfeatures2d/cmake/download_boostdesc.cmake:22 (ocv_download)
  /home/tank/Programming/opencv_contrib/modules/xfeatures2d/CMakeLists.txt:8 (download_boost_descriptors)


-- Configuring incomplete, errors occurred!
See also "/home/tank/Programming/opencv/build/CMakeFiles/CMakeOutput.log".
See also "/home/tank/Programming/opencv/build/CMakeFiles/CMakeError.log".

I think the problem is with the following:

# subject: C=US,ST=California,L=San Francisco,O=GitHub\, Inc.,CN=www.github.com

I don't think that " \, " is supposed to be there after "O=GItHub" but I'm not sure how to fix it.

Any help would be appreciated

[alalek]

@Eyenga In your case just comment/delete mentioned line (file(APPEND ...)).

[Eyenga]

@alalek Okay, that worked. Thank you my nigga!

[ElegantLin]

Hi, everyone, I tried @skvark 's methods. However, I met something wrong in my process.
When I input
sudo yum -y install curl-devel zlib-devel

The output is

There are no enabled repos.
 Run "yum repolist all" to see the repos you have.
 You can enable repos with yum-config-manager --enable <repo>

The system is Ubuntu 16.04 and I didn't install cuda.

PS: I am not sure whether xfeature2 has the dependency to Cuda and I don't think whether there is a relationship between them.

Could you please help me and give me the answer?

THX a lot :-)