I'm using Buildroot to add a package, it shows the following error in buiding step
cmake3 --build . --target install --config Release
...
ccache: error: configuration setting "cache_dir" must not be the empty string
ninja: build stopped: subcommand failed.
ERROR Backend subprocess exited when trying to invoke build_wheel
I tried rebuiding host-ccache, and in menuconfig, I checked Enable compiler cache, but it doesn't work. Can I get some help, pls?