make && make install
```
- [CMake][19] of at least 3.0 is required. If you get the error message 'Policy "CMP0048" is not known to this version of CMake,' that means you have an old CMake.
+ [CMake][19] of at least 3.0 is required. If you get the error message `Policy "CMP0048" is not known to this version of CMake`, that means you have an old CMake.
You may also need to compile/install [libwebsockets][2] from source if the `libwebsockets-dev` package is outdated.