[Bug 1875414] [NEW] Wrong liquidsoap installation, libs are missed

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Kyle Robbertze (krobbertze):

[Impact]

The package ships the pervasive libraries /usr/share/liquidsoap/libs,
while liquidsoap searches for them in /usr/share/liquidsoap/1.4.1/libs.
These libraries are used to implement much of the built-in modules used
within liquidsoap scripts. The fix here would fix scripts using these
pervasive libraries. The fix has been working in Debian unstable and
testing without issue.

[Test Plan]

Here is a short script to replicate it:
  #!/usr/bin/liquidsoap --check
  stream = playlist("")
  source = output.icecast(%mp3, host="localhost", port=8000, mount="listen.m3u", password="hackme")
  mksafe(source(mksafe(stream)))

Then ran the check against the liq file:
  liquidsoap --check ./radio.liq

This should terminate successfully. If the libs are not in the correct
position, this command will error out.

[Where problems could occur]

This patch creates a symlink, which could cause issues if the user has
used the workaround described below. Liquidsoap searches for the libs in
a subdirectory of /usr/share/liquidsoap that corresponds with the
version of the package, so for Ubuntu 20.04, this should be 1.4.1. An
incorrect symlink would result in no-change of the status-quo

-------------------------------
Original Bug report
-------------------------------

Could not use several script commands in liquidsoap, because liquidsoap
could not find several .liq - files.

Following

sudo mkdir /usr/share/liquidsoap/1.4.1
sudo ln -s /usr/share/liquidsoap/libs /usr/share/liquidsoap/1.4.1/

fixed it, like described here: https://github.com/radiorabe/centos-rpm-
liquidsoap/issues/3

** Affects: liquidsoap (Ubuntu)
     Importance: Undecided
         Status: Fix Released

-- 
Wrong liquidsoap installation, libs are missed
https://bugs.launchpad.net/bugs/1875414
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