Hello,
I battled with osmo-bts-trx this afternoon; it didn't want to build with old (at least not any I tried) nor recent libosmocore, so I ended up using a chainsaw and cutting pieces out of it. The outcome is here: https://github.com/shimaore/osmo-bts You can see what I had to remove here: https://github.com/shimaore/osmo-bts/commit/b5ac1c000e6d7bea57f7c1d8d47f43f9...
This version builds with libosmocore etc `master` revisions.(*) Once compiled this gives me a piece of software that starts and prints out messages on the console, and apparently connects to the transceiver on one side, and to osmo-bsc on the other side.
Anyhow, sending this out in hope this might save someone else a few hours. :} S.
(*) The `abis` and `rsl` code are completely different in recent libosmocore, I suspect this build uses the old `abis` code embedded inside osmo-bts. The sysmo-bts code was updated, but not the trx-bts code.