Good thing we have lzo as a fallback... if a bit slower.
They've changed the API so
LZ4_compress_fast only takes a single argument... and is now deprecated too.
Then the version numbering scheme is also completely changed... and triggers our sanity checks.
r15290 at least allows us to run again, with some annoying warnings and no level tuning.. that's the minimal change required for v1.0.x Which is going to need an "emergency" update too.
This needs to go in 1.0 wholesale. For the next LTS, we should drop support for versions older than 0.8.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1464