glfw is used as a submodule here, please run git submodule update --init
after cloning to get glfw.
to build on linux/mac
(if youre running on WSL with x11) sudo apt-get install libx11-dev
mkdir build && cd build
cmake ..
make
win:
mkdir build && cd build
cmake .. -G "MinGW Makefiles"
make
run
./b