The following dependencies are optional:
* **https://babeltrace.org/[Babeltrace{nbsp}2]**: default viewer
- of the https://lttng.org/man/1/lttng-view/[`lttng view`] command.
+ of the https://lttng.org/man/1/lttng-view/[`lttng view`] command,
+ `make{nbsp}check` and tests.
+
Debian/Ubuntu package: `babeltrace2`