There appears to be something wrong in the opencv configs.The tests will try to compile cmake/checks/atomic_check.cpp as a test for libatomic and will fail.
I can manually get the same test to compile without issues, however.g++ -L/usr/pkg/lib -latomic ./work/opencv-3.4.9/cmake/checks/atomic_check.cpp
I think this should build OK on this platform but requires a bit more effort than I presently have time for. For now I am going to pause this effort but if anyone searches the mailing lists with the same error perhaps this might help!
Chris Pinnock wrote:
Hi Adam Which version of NetBSD are you using? COn 7 Jun 2021, at 19:43, Adam Russell <ac.russell%live.com@localhost> wrote: As a followup I tried compiling some test code which uses lib atomic with the same compiler on the same system and get an error. a `find` for the right libs is also turning up nothing. so perhaps it is possible that this library really isn't available for this arch?