To Use:

git submodule update --init

Do this instead. Avoid the submodule hell.

git clone https://github.com/wonder-mice/zf_log.git git clone https://github.com/google/googletest.git

sudo apt install cmake

cmake . make

Also:

codium clang-format extension

apt install clang-format

Build a "release" build

cmake -DCMAKE_BUILD_TYPE=Release . make

To switch back to "debug" build

cmake -DCMAKE_BUILD_TYPE=Debug . make