Download CMake from: https://cmake.org/download/
wget https://cmake.org/files/v3.12/cmake-3.12.3.tar.gz
tar zxvf cmake-3.*
cd cmake-3.*
./bootstrap --prefix=/usr/local
make -j$(nproc)
make install
cmake --version
cmake version *.*.*
CMake suite maintained and supported by Kitware (kitware.com/cmake).
I did all but the version is 2.8
![image](https://user-images.githubusercontent.com/5667357/48104842-1af76400-e203-11e8-9618-f3d765003e15.png)
I dont kno why dont set up