The commit 4904c4c "package/opencv3: use BR2_TOOLCHAIN_HAS_LIBATOMIC" overrides CMAKE_CXX_FLAGS with the single -latomic, losing all ABI CFLAGS that are passed there by default. This breaks build on xtensa where ABI CFLAGS contain important code generation options. Append $(TARGET_CXXFLAGS) to CMAKE_CXX_FLAGS along with -latomic. Fixes: http://autobuild.buildroot.net/results/7f1c96abd8fbb5b358a07100ab623316e9bb9dcd http://autobuild.buildroot.net/results/e0c93d0f6d1da0d62d4dbba211a275bfe75e9645 http://autobuild.buildroot.net/results/53e7e4b4b6a7b48b8012799d7507f7594dbf01b2 Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Samuel Martin <s.martin49@gmail.com> Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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