Build tags

Mattn used build tags to enable SQLite compile-time features. Here those features are already enabled by default (modernc compiles SQLite with them), so the build tags become no-ops:

mattn build tag	gosqlite status
sqlite_fts5	always on
sqlite_json (JSON1)	always on
sqlite_math_functions	always on
sqlite_rtree, sqlite_geopoly	always on
sqlite_dbstat	always on
sqlite_preupdate_hook	always on, via (*Conn).RegisterPreUpdateHook
sqlite_userauth	dropped (removed upstream)
sqlite_unlock_notify	inherited from modernc
sqlite_vtable	always on, see modernc.org/sqlite/vtab

You don’t pass any of these tags; just remove them from your build. The SESSION extension is also compiled in (see Sessions).