ForkI'm trying to build opencv using mingw gcc 9.2, and i got the following
message:
[ 6%] Building CXX object
modules/core/CMakeFiles/opencv_core.dir/src/algorithm.cpp.obj
In file included from
F:\Temp\test\opencv-4.5.1\modules\core\src\precomp.hpp:49,
from
F:\Temp\test\opencv-4.5.1\modules\core\src\algorithm.cpp:43:
F:/Temp/test/opencv-4.5.1/modules/core/include/opencv2/core/utility.hpp:706:14:
error: 'recursive_mutex' in namespace 'std' does not name a type
706 | typedef std::recursive_mutex Mutex;
| ^~~~~~~~~~~~~~~
F:/Temp/test/opencv-4.5.1/modules/core/include/opencv2/core/utility.hpp:63:1:
note: 'std::recursive_mutex' is defined in header '<mutex>'; did you forget
to '#include <mutex>'?
So what should I do to get it worked?
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