Very clear and concise! I am running into this:

CMake Error: The source directory "/home/user" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.
user@DebSteem2:~$ cd steem
user@DebSteem2:~/steem$ make.
bash: make.: command not found
user@DebSteem2:~/steem$ make .
make: Nothing to be done for '.'.
user@DebSteem2:~/steem$ cmake -DCMAKE_BUILD_TYPE=Release -DENABLE_CONTENT_PATCHING=OFF -DLOW_MEMORY_NODE=ON
CMake Error at CMakeLists.txt:3 (cmake_minimum_required):
CMake 3.2 or higher is required. You are running version 3.0.2

I am running debian--8
not sure how to find an update
tried
apt-get update
atp-get upgrade

Says "lastest version installed"