Detect if `pg_crypto` in Postgres was built with strong random feature enabled

The source code for pg_crypto module mentions an option to build without cryptographically-strong random generation. >/* > > * Generate random bits. pg_backend_random() will do here, we don't promis > > * UUIDs to be cryptographically random, when built with > > * --disable-strong-random. > > */ Discussed further in this thread . In the particular build I may be using, how can I **detect if the strong random feature is enable or disabled**?