The macports.sqlext is meant to ease debugging the registry database by
providing the necessary SQLite extensions to examine and modify the database
using the sqlite3 command line tool.

To use this SQLite extension, build it with 'make macports.sqlext' and use
'.load macports.sqlext' at the sqlite3 prompt right after attaching the
registry.db file.

Example:

$ sqlite3 /opt/local/var/macports/registry/registry.db
...
sqlite> .load /Users/julesverne/src/macports/trunk/base/src/cregistry/macports.sqlext