# 7.16. Host System sanity checks - sanity.bbclass

## 7.16. Host System sanity checks - `sanity.bbclass`

This class checks to see if prerequisite software is present so that users can be notified of potential problems that might affect their build. The class also performs basic user configuration checks from the `local.conf` configuration file to prevent common mistakes that cause build failures. Distribution policy usually determines whether to include this class.