I am getting the following error when building the VisionWorks-1.6-Samples/samples/opencv_npp_interop sample (all othe samples and code build without errors):
make
g++ -I/usr/local/cuda-8.0/include -I/usr/local/cuda-8.0/include -DUSE_NPP=1 -I/usr/local/include/opencv -I/usr/local/include -DUSE_OPENCV=1 -I/usr/local/cuda-8.0/include -I…/…/nvxio/include -I…/…/nvxio/src/ -I…/…/nvxio/src/NVX/ -I…/…/3rdparty/opengl -I…/…/3rdparty/glfw3/include -I/usr/include/freetype2 -I…/…/3rdparty/eigen -O3 -DNDEBUG -std=c++0x -DCUDA_API_PER_THREAD_DEFAULT_STREAM -DUSE_GUI=1 -DUSE_GLFW=1 -DUSE_GSTREAMER=1 -o obj/release/main_opencv_npp_interop.o -c main_opencv_npp_interop.cpp
g++ -I/usr/local/cuda-8.0/include -I/usr/local/cuda-8.0/include -DUSE_NPP=1 -I/usr/local/include/opencv -I/usr/local/include -DUSE_OPENCV=1 -I/usr/local/cuda-8.0/include -I…/…/nvxio/include -I…/…/nvxio/src/ -I…/…/nvxio/src/NVX/ -I…/…/3rdparty/opengl -I…/…/3rdparty/glfw3/include -I/usr/include/freetype2 -I…/…/3rdparty/eigen -O3 -DNDEBUG -std=c++0x -DCUDA_API_PER_THREAD_DEFAULT_STREAM -DUSE_GUI=1 -DUSE_GLFW=1 -DUSE_GSTREAMER=1 -o obj/release/alpha_comp_node.o -c alpha_comp_node.cpp
g++ -Wl,–allow-shlib-undefined -pthread -Wl,-rpath=/usr/local/cuda-8.0/lib64 -O3 -DNDEBUG -std=c++0x -DCUDA_API_PER_THREAD_DEFAULT_STREAM -DUSE_GUI=1 -DUSE_GLFW=1 -DUSE_GSTREAMER=1 -o …/…/bin/x86_64/linux/release/nvx_sample_opencv_npp_interop obj/release/main_opencv_npp_interop.o obj/release/alpha_comp_node.o …/…/libs/x86_64/linux/release/libovx.a -L"/usr/lib" …/…/libs/x86_64/linux/release/libovx.a -lfreetype …/…/3rdparty/glfw3/libs/libglfw3.a -lGL -lXrandr -lXi -lXxf86vm -lX11 -lgstpbutils-1.0 -lgstapp-1.0 -lgstbase-1.0 -lgstreamer-1.0 -lgobject-2.0 -lglib-2.0 -L/usr/local/cuda-8.0/lib64 -lcudart -L/usr/local/cuda-8.0/lib64 -lnppi -lnppc -L/usr/local/lib -lopencv_cudabgsegm -lopencv_cudaobjdetect -lopencv_cudastereo -lopencv_stitching -lopencv_cudafeatures2d -lopencv_superres -lopencv_cudacodec -lopencv_videostab -lopencv_cudaoptflow -lopencv_cudalegacy -lopencv_cudawarping -lopencv_aruco -lopencv_bgsegm -lopencv_bioinspired -lopencv_ccalib -lopencv_dnn -lopencv_dpm -lopencv_fuzzy -lopencv_hdf -lopencv_line_descriptor -lopencv_optflow -lopencv_plot -lopencv_reg -lopencv_saliency -lopencv_stereo -lopencv_structured_light -lopencv_phase_unwrapping -lopencv_rgbd -lopencv_surface_matching -lopencv_tracking -lopencv_datasets -lopencv_text -lopencv_face -lopencv_xfeatures2d -lopencv_shape -lopencv_video -lopencv_ximgproc -lopencv_calib3d -lopencv_features2d -lopencv_flann -lopencv_xobjdetect -lopencv_objdetect -lopencv_ml -lopencv_xphoto -lopencv_highgui -lopencv_videoio -lopencv_photo -lopencv_imgcodecs -lopencv_cudaimgproc -lopencv_cudafilters -lopencv_imgproc -lopencv_cudaarithm -lopencv_core -lopencv_cudev -L/usr/local/cuda-8.0/lib64 -lcudart -lvisionworks
obj/release/main_opencv_npp_interop.o: In function cv::String::String(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': main_opencv_npp_interop.cpp:(.text._ZN2cv6StringC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE[_ZN2cv6StringC5ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE]+0x2f): undefined reference to
cv::String::allocate(unsigned long)’
obj/release/main_opencv_npp_interop.o: In function main': main_opencv_npp_interop.cpp:(.text.startup+0x2a7): undefined reference to
cv::String::deallocate()’
main_opencv_npp_interop.cpp:(.text.startup+0x2db): undefined reference to cv::String::deallocate()' main_opencv_npp_interop.cpp:(.text.startup+0x43a2): undefined reference to
cv::String::deallocate()’
main_opencv_npp_interop.cpp:(.text.startup+0x43b9): undefined reference to `cv::String::deallocate()’
collect2: error: ld returned 1 exit status
Makefile:158: recipe for target ‘…/…/bin/x86_64/linux/release/nvx_sample_opencv_npp_interop’ failed
make: *** […/…/bin/x86_64/linux/release/nvx_sample_opencv_npp_interop] Error 1
Any help would be greatly appreciated.