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If you are new to FLECS, make sure to clone recursively:

git clone --recurse-submodules https://github.com/flecs-technologies/flecs-public

If you have cloned the source code earlier, make sure to initialize submodules:

git submodule update --init

It is recommended to use our official Docker image for building. To do so, run

docker run -it --rm --name flecs-build -v $(pwd):$(pwd) -w $(pwd) flecs/flecs-build:1.5.4-porpoise

from the repository's root directory.

If you intend to build Docker images as well (such as our System Apps), make sure to mount yout local Docker socket:

docker run -it --rm --name flecs-build -v $(pwd):$(pwd) -v /run/docker.sock:/run/docker.sock -w $(pwd) flecs/flecs-build:1.5.4-porpoise

Note: It is recommended to use the Docker image tag that corresponds to the Git tag you are building.

If you don't want to use our Docker image for whatever reason, please take a peek at https://github.com/FLECS-Technologies/flecs-build/tree/main/docker/flecs-build to find out which dependencies you might need for building. More detailed instructions will follow at a later stage...

1. Configuration:

cmake -G Ninja -B out/${ARCH} -DARCH=${ARCH}

ARCH has to be one of (amd64|arm64|armhf)

2a. Building the whole project

cmake --build out/${ARCH}

2b. Building single targets

cmake --build out/${ARCH} --target <target>

Relevant single <target>s might be FLECS.flunder or FLECS.mqtt.