Donat find variables that are declared on the command line, but not used. TBB_INCLUDE_DIRS: C:\OpenCV\tbb\include With cmake-based programs, you first use cmake to configure it and then use make to actually do the compilation. Cmake Get Build Directory - notfasr CMake will write a CMakeCache.txt file to identify the directory as a build tree.Here are the three variables it contains with their values: Note that the value of TBB_LIB_DIR depends on your compiler.
In the “TBB” group, there are two new variables whose default values are correct. They should lie in some include directory within the tbb folder. If it is not the case, then retry to locate the TBB headers. Therefore, a new group “TBB” should appear in the interface. Now, CMake should have been able to locate the TBB headers (include dir). When done, press the “Configure” button again. Provide the path to the TBB headers, which should be C:\OpenCV\tbb\include. If the TBB include directory is not found, this group will have the option “TBB_INCLUDE_DIRS” with the value “TBB_INCLUDE_DIRS-NOTFOUND”.Ĭlick on the value and then on the tiny button ”.” appearing on the right-side of the field. Then a new group should appear (in red), named “Ungrouped Entries”. If you had previously enabled BUILD_TBB, my suggestion is to restart from the beginnning, clearing cmake cache. Be careful NOT enabling BUILD_TBB: the automatic downloading and building of OpenCV failed miserably for me despite many efforts.
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