<h5 dir="auto">System information (version)</h5>

<ul dir="auto">
<li>OpenCV =&gt; 4.0.1</li>
<li>Operating System / Platform =&gt; Ubuntu 16.04 LTS</li>
<li>Compiler =&gt; gcc 5.5.0</li>
</ul>
<h5 dir="auto">Detailed description</h5>
<ul dir="auto">
<li>Related to: opencv_contrib (probably)</li>
<li>Probably it is related to the tests compilation.</li>
<li>See CMakeError log after the CMake configuration info in the down part of this issue.</li>
</ul>
<p dir="auto">Compilation fails in:<br>
<code class="notranslate">[ 40%] Built target opencv_gapi [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/scale_layer.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/eltwise_layer.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/mvn_layer.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/prior_box_layer.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/padding_layer.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/reorg_layer.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/recurrent_layers.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/crop_and_resize_layer.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/darknet/darknet_importer.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/darknet/darknet_io.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/op_halide.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/init.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/op_prior_box.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/op_pool.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/op_softmax.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/op_concat.cpp.o [ 40%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/context.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/buffer.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/op_permute.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/tensor.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/op_relu.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/internal.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/op_lrn.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/op_base.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/src/op_conv.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/vulkan/vk_loader.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/vulkan/vk_functions.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/dw_conv_spv.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/softmax_spv.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/avg_pool_spv.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/lrn_spv.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/relu_spv.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/prior_box_spv.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/concat_spv.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/max_pool_spv.cpp.o [ 41%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/conv_spv.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/conv48_spv.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/vkcom/shader/permute_spv.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/ocl4dnn/src/ocl4dnn_lrn.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/ocl4dnn/src/common.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/ocl4dnn/src/ocl4dnn_softmax.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/ocl4dnn/src/ocl4dnn_pool.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/ocl4dnn/src/ocl4dnn_inner_product.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/ocl4dnn/src/math_functions.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/ocl4dnn/src/ocl4dnn_conv_spatial.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/opencl_kernels_dnn.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/layers/layers_common.avx.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/layers/layers_common.avx2.cpp.o [ 42%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/layers/layers_common.avx512_skx.cpp.o [ 42%] Linking CXX shared library ../../lib/libopencv_dnn.so [ 42%] Built target opencv_dnn Makefile:160: fallo en las instrucciones para el objetivo 'all' make: *** [all] Error 2 </code></p>
<p dir="auto">Cmake configuration:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="
General configuration for OpenCV 4.0.1-dev =====================================
  Version control:               3.4.1-2515-g54a1bbe

  Extra modules:
    Location (extra):            /home/tino/libs/opencv/opencv_contrib/modules
    Version control (extra):     3.4.3-295-g301aa7e

  Platform:
    Timestamp:                   2019-02-14T14:31:08Z
    Host:                        Linux 4.15.0-45-generic x86_64
    CMake:                       3.5.1
    CMake generator:             Unix Makefiles
    CMake build tool:            /usr/bin/make
    Configuration:               Release

  CPU/HW features:
    Baseline:                    SSE SSE2 SSE3
      requested:                 SSE3
    Dispatched code generation:  SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
      requested:                 SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
      SSE4_1 (7 files):          + SSSE3 SSE4_1
      SSE4_2 (2 files):          + SSSE3 SSE4_1 POPCNT SSE4_2
      FP16 (1 files):            + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
      AVX (5 files):             + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
      AVX2 (15 files):           + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
      AVX512_SKX (2 files):      + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_SKX

  C/C++:
    Built as dynamic libs?:      YES
    C++ Compiler:                /usr/bin/g++-5  (ver 5.5.0)
    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 -Winit-self -Wsuggest-override -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -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 -Winit-self -Wsuggest-override -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
    C Compiler:                  /usr/bin/gcc-5
    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 -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -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 -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
    Linker flags (Release):      
    Linker flags (Debug):        
    ccache:                      YES
    Precompiled headers:         NO
    Extra dependencies:          dl m pthread rt
    3rdparty dependencies:

  OpenCV modules:
    To be built:                 aruco bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dpm face features2d flann freetype fuzzy gapi hdf hfs highgui img_hash imgcodecs imgproc java java_bindings_generator line_descriptor ml objdetect optflow phase_unwrapping photo plot reg rgbd saliency sfm shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
    Disabled:                    python2 python_bindings_generator world
    Disabled by dependency:      -
    Unavailable:                 cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv js matlab ovis python3 viz
    Applications:                tests perf_tests apps
    Documentation:               NO
    Non-free algorithms:         YES

  GUI: 
    GTK+:                        YES (ver 3.18.9)
      GThread :                  YES (ver 2.48.2)
      GtkGlExt:                  NO
    VTK support:                 NO

  Media I/O: 
    ZLib:                        /home/tino/anaconda/lib/libz.so (ver 1.2.11)
    JPEG:                        build-libjpeg-turbo (ver 1.5.3-62)
    WEBP:                        /usr/lib/x86_64-linux-gnu/libwebp.so (ver encoder: 0x0202)
    PNG:                         build (ver 1.6.35)
    TIFF:                        build (ver 42 - 4.0.9)
    JPEG 2000:                   /usr/lib/x86_64-linux-gnu/libjasper.so (ver 1.900.1)
    OpenEXR:                     build (ver 1.7.1)
    HDR:                         YES
    SUNRASTER:                   YES
    PXM:                         YES
    PFM:                         YES

  Video I/O:
    DC1394:                      YES (2.2.4)
    FFMPEG:                      YES
      avcodec:                   YES (57.107.100)
      avformat:                  YES (57.83.100)
      avutil:                    YES (55.78.100)
      swscale:                   YES (4.8.100)
      avresample:                YES (2.1.0)
    GStreamer:                   YES (1.8.3)
    v4l/v4l2:                    YES (linux/videodev2.h)

  Parallel framework:            pthreads

  Trace:                         YES (with Intel ITT)

  Other third-party libraries:
    Intel IPP:                   2019.0.0 Gold [2019.0.0]
           at:                   /home/tino/libs/opencv/build_FEB_19/3rdparty/ippicv/ippicv_lnx/icv
    Intel IPP IW:                sources (2019.0.0)
              at:                /home/tino/libs/opencv/build_FEB_19/3rdparty/ippicv/ippicv_lnx/iw
    Lapack:                      YES (/usr/lib/liblapack.so /usr/lib/libcblas.so /usr/lib/libatlas.so)
    Eigen:                       YES (ver 3.2.92)
    Custom HAL:                  NO
    Protobuf:                    build (3.5.1)

  OpenCL:                        YES (no extra features)
    Include path:                /home/tino/libs/opencv/opencv/3rdparty/include/opencl/1.2
    Link libraries:              Dynamic load

  Python (for build):            /usr/bin/python2.7

  Java:                          
    ant:                         /usr/bin/ant (ver 1.9.6)
    JNI:                         /usr/lib/jvm/java-8-oracle/include /usr/lib/jvm/java-8-oracle/include/linux /usr/lib/jvm/java-8-oracle/include
    Java wrappers:               YES
    Java tests:                  YES

  Install to:                    /usr/local/opencv_4_0_1
-----------------------------------------------------------------

Configuring done
"><pre class="notranslate"><code class="notranslate">
General configuration for OpenCV 4.0.1-dev =====================================
  Version control:               3.4.1-2515-g54a1bbe

  Extra modules:
    Location (extra):            /home/tino/libs/opencv/opencv_contrib/modules
    Version control (extra):     3.4.3-295-g301aa7e

  Platform:
    Timestamp:                   2019-02-14T14:31:08Z
    Host:                        Linux 4.15.0-45-generic x86_64
    CMake:                       3.5.1
    CMake generator:             Unix Makefiles
    CMake build tool:            /usr/bin/make
    Configuration:               Release

  CPU/HW features:
    Baseline:                    SSE SSE2 SSE3
      requested:                 SSE3
    Dispatched code generation:  SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
      requested:                 SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
      SSE4_1 (7 files):          + SSSE3 SSE4_1
      SSE4_2 (2 files):          + SSSE3 SSE4_1 POPCNT SSE4_2
      FP16 (1 files):            + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
      AVX (5 files):             + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
      AVX2 (15 files):           + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
      AVX512_SKX (2 files):      + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_SKX

  C/C++:
    Built as dynamic libs?:      YES
    C++ Compiler:                /usr/bin/g++-5  (ver 5.5.0)
    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 -Winit-self -Wsuggest-override -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -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 -Winit-self -Wsuggest-override -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
    C Compiler:                  /usr/bin/gcc-5
    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 -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -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 -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
    Linker flags (Release):      
    Linker flags (Debug):        
    ccache:                      YES
    Precompiled headers:         NO
    Extra dependencies:          dl m pthread rt
    3rdparty dependencies:

  OpenCV modules:
    To be built:                 aruco bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dpm face features2d flann freetype fuzzy gapi hdf hfs highgui img_hash imgcodecs imgproc java java_bindings_generator line_descriptor ml objdetect optflow phase_unwrapping photo plot reg rgbd saliency sfm shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
    Disabled:                    python2 python_bindings_generator world
    Disabled by dependency:      -
    Unavailable:                 cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv js matlab ovis python3 viz
    Applications:                tests perf_tests apps
    Documentation:               NO
    Non-free algorithms:         YES

  GUI: 
    GTK+:                        YES (ver 3.18.9)
      GThread :                  YES (ver 2.48.2)
      GtkGlExt:                  NO
    VTK support:                 NO

  Media I/O: 
    ZLib:                        /home/tino/anaconda/lib/libz.so (ver 1.2.11)
    JPEG:                        build-libjpeg-turbo (ver 1.5.3-62)
    WEBP:                        /usr/lib/x86_64-linux-gnu/libwebp.so (ver encoder: 0x0202)
    PNG:                         build (ver 1.6.35)
    TIFF:                        build (ver 42 - 4.0.9)
    JPEG 2000:                   /usr/lib/x86_64-linux-gnu/libjasper.so (ver 1.900.1)
    OpenEXR:                     build (ver 1.7.1)
    HDR:                         YES
    SUNRASTER:                   YES
    PXM:                         YES
    PFM:                         YES

  Video I/O:
    DC1394:                      YES (2.2.4)
    FFMPEG:                      YES
      avcodec:                   YES (57.107.100)
      avformat:                  YES (57.83.100)
      avutil:                    YES (55.78.100)
      swscale:                   YES (4.8.100)
      avresample:                YES (2.1.0)
    GStreamer:                   YES (1.8.3)
    v4l/v4l2:                    YES (linux/videodev2.h)

  Parallel framework:            pthreads

  Trace:                         YES (with Intel ITT)

  Other third-party libraries:
    Intel IPP:                   2019.0.0 Gold [2019.0.0]
           at:                   /home/tino/libs/opencv/build_FEB_19/3rdparty/ippicv/ippicv_lnx/icv
    Intel IPP IW:                sources (2019.0.0)
              at:                /home/tino/libs/opencv/build_FEB_19/3rdparty/ippicv/ippicv_lnx/iw
    Lapack:                      YES (/usr/lib/liblapack.so /usr/lib/libcblas.so /usr/lib/libatlas.so)
    Eigen:                       YES (ver 3.2.92)
    Custom HAL:                  NO
    Protobuf:                    build (3.5.1)

  OpenCL:                        YES (no extra features)
    Include path:                /home/tino/libs/opencv/opencv/3rdparty/include/opencl/1.2
    Link libraries:              Dynamic load

  Python (for build):            /usr/bin/python2.7

  Java:                          
    ant:                         /usr/bin/ant (ver 1.9.6)
    JNI:                         /usr/lib/jvm/java-8-oracle/include /usr/lib/jvm/java-8-oracle/include/linux /usr/lib/jvm/java-8-oracle/include
    Java wrappers:               YES
    Java tests:                  YES

  Install to:                    /usr/local/opencv_4_0_1
-----------------------------------------------------------------

Configuring done

</code></pre></div>
<h5 dir="auto">Steps to reproduce</h5>
<p dir="auto">Last lines in CMakeError.log:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="TestEndianess.c:
/* A 16 bit integer is required. */
typedef unsigned short cmakeint16;

/* On a little endian machine, these 16bit ints will give &quot;THIS IS LITTLE ENDIAN.&quot;
   On a big endian machine the characters will be exchanged pairwise. */
const cmakeint16 info_little[] =  {0x4854, 0x5349, 0x4920, 0x2053, 0x494c, 0x5454, 0x454c, 0x4520, 0x444e, 0x4149, 0x2e4e, 0x0000};

/* on a big endian machine, these 16bit ints will give &quot;THIS IS BIG ENDIAN.&quot;
   On a little endian machine the characters will be exchanged pairwise. */
const cmakeint16 info_big[] =     {0x5448, 0x4953, 0x2049, 0x5320, 0x4249, 0x4720, 0x454e, 0x4449, 0x414e, 0x2e2e, 0x0000};

#ifdef __CLASSIC_C__
int main(argc, argv) int argc; char *argv[];
#else
int main(int argc, char *argv[])
#endif
{
  int require = 0;
  require += info_little[argc];
  require += info_big[argc];
  (void)argv;
  return require;
}


Build output check failed:
    Regex: 'unrecognized .*option'
    Output line: 'cc1: warning: unrecognized command line option ‘-Wno-misleading-indentation’'
Compilation failed:
    source file: '/home/tino/libs/opencv/build_FEB_19/CMakeFiles/CMakeTmp/src.c'
    check option: ' -Wno-misleading-indentation'
===== BUILD LOG =====
Change Dir: /home/tino/libs/opencv/build_FEB_19/CMakeFiles/CMakeTmp

Run Build Command:&quot;/usr/bin/make&quot; &quot;cmTC_f2cce/fast&quot;
/usr/bin/make -f CMakeFiles/cmTC_f2cce.dir/build.make CMakeFiles/cmTC_f2cce.dir/build
make[1]: se entra en el directorio '/home/tino/libs/opencv/build_FEB_19/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_f2cce.dir/src.c.o
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"><pre class="notranslate"><code class="notranslate">TestEndianess.c:
/* A 16 bit integer is required. */
typedef unsigned short cmakeint16;

/* On a little endian machine, these 16bit ints will give "THIS IS LITTLE ENDIAN."
   On a big endian machine the characters will be exchanged pairwise. */
const cmakeint16 info_little[] =  {0x4854, 0x5349, 0x4920, 0x2053, 0x494c, 0x5454, 0x454c, 0x4520, 0x444e, 0x4149, 0x2e4e, 0x0000};

/* on a big endian machine, these 16bit ints will give "THIS IS BIG ENDIAN."
   On a little endian machine the characters will be exchanged pairwise. */
const cmakeint16 info_big[] =     {0x5448, 0x4953, 0x2049, 0x5320, 0x4249, 0x4720, 0x454e, 0x4449, 0x414e, 0x2e2e, 0x0000};

#ifdef __CLASSIC_C__
int main(argc, argv) int argc; char *argv[];
#else
int main(int argc, char *argv[])
#endif
{
  int require = 0;
  require += info_little[argc];
  require += info_big[argc];
  (void)argv;
  return require;
}


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===== END =====

</code></pre></div>
<h5 dir="auto">System information (version)</h5>

<ul dir="auto">
<li>OpenCV =&gt; ❔</li>
<li>Operating System / Platform =&gt; ❔</li>
<li>Compiler =&gt; <g-emoji class="g-emoji" alias="grey_question" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/2754.png">❔</g-emoji></li>
</ul>
<h5 dir="auto">Detailed description</h5>

<h5 dir="auto">Steps to reproduce</h5>