-!!! warning
- The default installation no longer compiles the PostgreSQL module that
- is needed for the legacy tokenizer from older Nominatim versions. If you
- are upgrading an older database or want to run the
- [legacy tokenizer](../customize/Tokenizers.md#legacy-tokenizer) for
- some other reason, you need to enable the PostgreSQL module via
- cmake: `cmake -DBUILD_MODULE=on ../Nominatim`. To compile the module
- you need to have the server development headers for PostgreSQL installed.
- On Ubuntu/Debian run: `sudo apt install postgresql-server-dev-<postgresql version>`
- The legacy tokenizer is deprecated and will be removed in Nominatim 5.0
-
-