I've been ignoring submodules so far. For the old method of
dealing with lua, the instructions
You might need to do
make spotless
make fetch-lua
aren't adequate. They should be
When lua version has changed in Makefile.top, before running
setup.sh to put that new Makefile in place, do
make spotless
then
sys/unix/setup.sh [hints/...]
make fetch-lua
otherwise it will try to clean up the not yet fetched new lua
version instead of the old one.