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Add BR2_PACKAGE_OPENCV4_LIB_DNN to fix the following uclibc build failure raised since bump to version 4.5.5 in commitb692231393and1feb3838b5: /home/giuliobenetti/autobuild/run/instance-3/output-1/build/opencv4-4.5.5/modules/dnn/src/layers/elementwise_layers.cpp: In member function 'float cv::dnn::RoundFunctor::calculate(float) const': /home/giuliobenetti/autobuild/run/instance-3/output-1/build/opencv4-4.5.5/modules/dnn/src/layers/elementwise_layers.cpp:1260:43: error: 'fegetround' is not a member of 'std' 1260 | int old_rounding_direction = std::fegetround(); | ^~~~~~~~~~ /home/peko/autobuild/instance-0/output-1/build/opencv4-4.5.5/modules/dnn/src/layers/elementwise_layers.cpp:1261:14: error: 'fesetround' is not a member of 'std' 1261 | std::fesetround(FE_TONEAREST); | ^~~~~~~~~~ /home/peko/autobuild/instance-0/output-1/build/opencv4-4.5.5/modules/dnn/src/layers/elementwise_layers.cpp:1261:25: error: 'FE_TONEAREST' was not declared in this scope 1261 | std::fesetround(FE_TONEAREST); | ^~~~~~~~~~~~ Indeed, uclibc pretends to implement fenv but it raises build failures on numerous architectures (or1k, sh4, xtensa, mipsel, arm, arc, riscv64, etc.) Fixes: - http://autobuild.buildroot.org/results/a6dd3c10acfbf6bc1af867d770cf0ce926c6ce84 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
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