I'm getting the same warning building the Go package crawshaw.io/sqlite.
```
$ go build crawshaw.io/sqlite
# crawshaw.io/sqlite
In file included from ./static.go:19:
././c/sqlite3.c: In function ‘sqlite3Fts5IndexQuery’:
././c/sqlite3.c:226544:18: warning: ‘memcpy’ specified bound 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Wstringop-overflow=]
226544 | if( nToken ) memcpy(&buf.p[1], pToken, nToken);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```