that, the kernel version may probably be older, but we can't provide
any guarantee. Please let us know if you are able to go lower
without any problems.
- - **[`liburcu`](http://urcu.so/) >= 0.8.0**: userspace RCU library,
+ - **[`liburcu`](http://www.liburcu.org/) >= 0.8.0**: userspace RCU library,
by Mathieu Desnoyers and Paul E. McKenney.
- **`libpopt` >= 1.13**: command line arguments parsing library.
- Debian/Ubuntu package: `libpopt-dev`
- **[Babeltrace](https://lttng.org/babeltrace)**: trace viewer.
Enables the use of `lttng view` command.
- Debian/Ubuntu package: `babeltrace`
+ - **[LTTng UST](https://lttng.org) (same version as LTTng Tools)**: userspace tracer.
+ Enables the tracing of userspace applications.
+ - Debian/Ubuntu package: `liblttng-ust-dev`
- **Perl**: needed for `make check` and tests.
- **Python >= 3.0**: needed for `make check` and tests.
- Debian/Ubuntu package: `python3`