bug when use old version cmake
hi,dear developer
I found when I use cmake 2.8.11 or 2.8.12 which satisfy cmake Minimum version requirements(2.8) no error or warn info,I set option -DENABLE_OPENMP=1,it will look for openmp, but not really use it.
I need to modify CMakeLists.txt:297 from "OpenMP_FOUND" to "OPENMP_FOUND",and it wil real use openmp.
When I use cmake 3.14.x or other new version,this problem not recur,is this a bug?