Upstream signald binaries requires glibc>=2.29

[MayeulC]

Upstream now builds native libraries using debian bullseye instead of buster. Bullseye upgrades glibc to 2.29 from 2.28. Since the rust toolchain is built with that, the binaries need 2.29 as well.

I submitted a patch to upstream to build with buster, let's hope it gets accepted:

• https://gitlab.com/signald/libraries/zkgroup/-/merge_requests/5
• https://gitlab.com/signald/libraries/libsignal-client/-/merge_requests/1

An alternative is to compile from source #9

Meanwhile, signald versions from about 3 weeks ago and up are unusable. The app will install, but linking a device is not possible:

(Me) > link

(Signal bridge bot) > Unhandled error while handling command:
Traceback (most recent call last):
  File "/opt/yunohost/mautrix_signal/lib/python3.7/site-packages/mautrix/bridge/commands/handler.py", line 409, in handle
    await self._run_handler(handler, evt)
  File "/opt/yunohost/mautrix_signal/lib/python3.7/site-packages/mautrix/bridge/commands/handler.py", line 296, in __call__
    return await self._handler(evt)
  File "/opt/yunohost/mautrix_signal/lib/python3.7/site-packages/mautrix_signal/commands/auth.py", line 64, in link
    sess = await evt.bridge.signal.start_link()
  File "/opt/yunohost/mautrix_signal/lib/python3.7/site-packages/mausignald/signald.py", line 112, in start_link
    return LinkSession.deserialize(await self.request_v1("generate_linking_uri"))
  File "/opt/yunohost/mautrix_signal/lib/python3.7/site-packages/mausignald/rpc.py", line 221, in request_v1
    return await self.request(command, expected_response=command, version="v1", **data)
  File "/opt/yunohost/mautrix_signal/lib/python3.7/site-packages/mausignald/rpc.py", line 215, in request
    resp_type, resp_data = await self._raw_request(command, **data)
  File "/opt/yunohost/mautrix_signal/lib/python3.7/site-packages/mausignald/rpc.py", line 212, in _raw_request
    return await asyncio.shield(future)
mausignald.errors.ResponseError: UnsatisfiedLinkError: /tmp/resource7826374141016698858.so: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by /tmp/resource7826374141016698858.so)

[Gredin67]

I see 3 options:

• 9

• wait for Yunohost 5/bullseye and rather invest time to solve other issues such as #24 #25
• install glibc to 2.29 from buster-backport with the extra repository helper? what do you think @alexAubin ?

[alexAubin]

Ogod yeah I would say let's focus on support for bullseye ... We should release an alpha in the coming weeks / days ... (Also we're jumping to v11 not v5, we're willing to match with debian version for simplicity)

[MayeulC]

Upstream reverted to buster in order to fix this: https://gitlab.com/signald/libraries/libsignal-client/-/commit/f0b1c1a348c6d9f7182a11b8e747292fdeca0add

Currently signald requires zkgroup which is still built on bullseye. This will change once the following is merged: https://gitlab.com/signald/signald/-/merge_requests/93

After that MR is merged into signald, the package should work again on buster.

[MayeulC]

Should be fixed upstream, I tested the package locally. I pushed a change to the testing branch to depend on signald >=0.15.0-27