How to build lttng on RHEL 9?

[David Aldrich via lttng-dev]

Hi

I have a build error for lttng-modules-2.14.3 on RHEL 9.6:

lttng-modules-2.14.3/src/lttng-statedump-impl.c:408:20: error:
‘dev_base_lock’ undeclared (first use in this function); did you mean
‘device_lock’?
  408 |         read_lock(&dev_base_lock);
      |                    ^~~~~~~~~~~~~

Please can you advise me how to fix this?

(I am only building from source because I assume lttng packages aren't
available for RHEL 9).

Thanks in advance
David