Check ruby gem and SQLite3 for FTS3 or FTS4 support

Question

I have installed SQLite3 on Mountain Lion via MacPorts and Ruby along with sqlite3 gem using RVM.

I'd like to know if there's any way for me to understand if my SQLite3 installation supports FTS4.

i.e. The only way I found online was issuing FTS3 commands and not getting errors, but there must be a more 'clean' way... Also the mentioned way doesn't show if you have FTS3 or 4 working.

Answer 1

The documentation states:

Note that enabling FTS3 also makes FTS4 available. There is not a separate SQLITE_ENABLE_FTS4 compile-time option. A build of SQLite either supports both FTS3 and FTS4 or it supports neither.

So if FTS3 works, so does FTS4.

Doesn't look like it's possible to tell what options sqlite was compiled with according to this SO answer.