Hello,
I've been trying to compile OpenCV 4.1.1 on my RaspberryPi 4 running Rasbian Buster with Python 3.7. I use the following command for cmake running inside a build folder under opencv (as described here:https://www.pyimagesearch.com/2018/09/26/install-opencv-4-on-your-raspberry-pi/?submitted_comment=1#comment-525813):
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=/home/pi/share/CameraWork/opencv_contrib/modules -D ENABLE_NEON=ON -D ENABLE_VFPV3=ON -D BUILD_TESTS=OFF -D OPENCV_ENABLE_NONFREE=ON -D INSTALL_PYTHON_EXAMPLES=OFF -D BUILD_EXAMPLES=OFF -D ENABLE_NOISY_WARNINGS=ON -D ENABLE_PRECOMPILED_HEADERS=OFF ..
However I keep getting the following errors when make moves on to make opencv_perf_core:
/usr/bin/ld: ../../lib/libopencv_core.so.4.1.1: undefined reference to `__atomic_fetch_add_8'
/usr/bin/ld: ../../lib/libopencv_core.so.4.1.1: undefined reference to `__atomic_fetch_sub_8'
/usr/bin/ld: ../../lib/libopencv_core.so.4.1.1: undefined reference to `__atomic_store_8'
/usr/bin/ld: ../../lib/libopencv_core.so.4.1.1: undefined reference to `__atomic_load_8'
/usr/bin/ld: ../../lib/libopencv_core.so.4.1.1: undefined reference to `__atomic_compare_exchange_8'
collect2: error: ld returned 1 exit status
make[2]: *** [modules/core/CMakeFiles/opencv_perf_core.dir/build.make:541: bin/opencv_perf_core] Error 1
make[1]: *** [CMakeFiles/Makefile2:2597: modules/core/CMakeFiles/opencv_perf_core.dir/all] Error 2
make: *** [Makefile:163: all] Error 2
Has anyone come across any similar trouble? Do you have any suggestions?
Thanks in advance.
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