igraph/src

Updating the C sources

1. Check out and update the cigraph submodule to the desired version.

   git submodule init
   git submodule update
   # other git submodule commands to update the submodule to the desired version

2. Clean the src/ directory:

   make -f Makefile-cigraph clean

3. Update the src/ directory:

   make -f Makefile-cigraph

   Note that this may change files generated by flex and bison, and configure scripts, depending on the version of those tools. For stability, you can use a Docker image that uses pinned versions of these tools:

   docker run --rm -ti --platform linux/amd64 -v $(pwd):/root/workspace ghcr.io/cynkra/rig-ubuntu-igraph:main make -f Makefile-cigraph

4. Commit and push

5. Optional: Clean submodule

   git submodule deinit --all