Dependencies

SDL

MacOS

brew install sdl2

Linux

sudo apt install libsdl2-dev

Windows

Download the development pack SDL2-devel-2.0.5-VC.zip from here

Or use winget or choco

Build

Release

git submodule update --init --recursive
mkdir build && cd build
cmake -DDEBUG=off ..
cmake --build . -j8 

Debug

git submodule update --init --recursive
mkdir build && cd build
cmake -DDEBUG=on ..
cmake --build . -j8

After this run the binary gbemu in the build folder.