Missing `libsndio7.0` dependency

[ShuffleWire]

Describe the Bug
I'm installing Webots 2025a on Debian 13, and I've found that libsndio7.0 is missing from the dependencies. I'd to install it manually.

Steps to Reproduce

1. Get Webots 2025a .deb from the release page
2. Install it on a fresh Debian 13 (apt install ....deb)
3. Installation work correctly
4. Start webots, it complains about a missing library.
5. Install libsndio7.0 (apt install libsndio7.0)
6. Start webots, everything work fine.

Expected behavior
I wish Webots would pull that library as well during install.
I guess that on Ubuntu, this library is somewhat already installed.

Having this dependency added would ensure unofficial support OOTB for the Debian platform, and I would argue that it's a very minor thing to add.
For information, I've been running Webots :

• Personally and professionally for 5 yes,
• Using 4 different machines,
• Using Debian 11, 12, 13
• Using many version from 2021b to 2025a
• Using a various combination of CPU / GPU, even a 12 years old iGPU.
• Using manually build from source and the deb packages
  I would argue that it make a good coverage of the issues would might meet when running more officially on Debian, and I think that could enlarge the user base.
  I think that Webots could almost claim ((un)official) Debian compatibility, but it's at least at least fix the small bit that make it work OOTB, imo

System

• Operating System: Debian 13
• Webots 2025a

[CoolSpy3]

I looked into this. The cause appears to be a version mismatch in libopenal. Webots is compiled against (and ships with) version 1.23.1, but Debian 13's package repository contains version 1.24.2. Version 1.24.0 dropped the hard dependency on libsndio7.0 as a result of kcat/openal-soft#989 (moved to suggested). Notably, Ubuntu 25.04 also has the newer version of libopenal, so Webots will probably fail to launch there as well (although I haven't tested this). However, Debian 12 still has the old version of libopenal, so it's not affected.

When Ubuntu 26 releases next year, Webots will be built against the new version, which should resolve this bug. This also coincides with the next major release: R2026a (or maybe the second next if R2025b becomes a thing).

So, to summarize:
Currently:
Webots works on Ubuntu 24.04 LTS (latest Ubuntu LTS) and Debian 12 (latest official Debian release)
Webots does not work on Ubuntu 25.04 (not officially supported) or Debian 13 (which is still in development)

Both of these should be fixed in the next major release, so an intermediate bug fix would just help users who are installing nightly builds.

Given the Webots release cycle, I don't think it would be useful to include a fix that 1) only targets unsupported os-es AND 2) would be removed in the next major release. If users are installing nightly builds (and thus can make use of this patch), they are also likely check the issues and manually install the dependency if they run into problems (which is a one-time fix). For visibility, however, I will pin this issue until R2026 is released.

Tl;dr for the summary:

This should be fixed in R2026a. Until then, the fix is to run apt install libsndio7.0