Bug#993637: ecasound: LV2 plugins no longer supported

["Rev. Johnny Healey" <rev.null@gmail.com>]

Package: ecasound
Version: 2.9.3-2
Severity: important
X-Debbugs-Cc: rev.null@gmail.com

Dear Maintainer,

I recently updated to debian bullseye and found that numerous invocations of
ecasound that worked in buster. Specifically, LV2 plugins seem to no longer be
working in the binary built for bullseye.

A quick test to confirm this is to run `echo 'lv2-register' | /a/bin/ecasound`.
This command should list out all of the available plugins, but shows nothing.

I attempted to rebuild the package from source, but that did not seem to
resolve the issue. I poked at the config log a bit and noticed that it can't
find lv2core, which I think was in older versions of debian but has been
deprecated by the lv2-dev package. By hunch though is that it's just failing
to find the lv2 libraries when building and that is why the plugins are no
longer showing up.

Thanks for maintaining the package.

--Johnny

-- System Information:
Debian Release: 11.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-6-amd64 (SMP w/4 CPU threads)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages ecasound depends on:
ii  libasound2                        1.2.4-1.1
ii  libaudiofile1                     0.3.6-5
ii  libc6                             2.31-13
ii  libgcc-s1                         10.2.1-6
ii  libjack-jackd2-0 [libjack-0.125]  1.9.17~dfsg-1
ii  liblo7                            0.31-1
ii  libreadline8                      8.1-1
ii  libsamplerate0                    0.2.1+ds0-1
ii  libsndfile1                       1.0.31-2
ii  libstdc++6                        10.2.1-6
ii  libtinfo6                         6.2+20201114-2

Versions of packages ecasound recommends:
ii  faad             2.10.0-1
ii  lame             3.100-3
ii  mikmod           3.2.8-3
ii  mpg321 [mpg123]  0.3.2-3.1
ii  timidity         2.14.0-8
ii  vorbis-tools     1.4.0-11+b1

Versions of packages ecasound suggests:
ii  ecatools                            2.9.3-2
ii  ladspa-sdk [ladspa-plugin]          1.15-2
ii  lsp-plugins-ladspa [ladspa-plugin]  1.1.29-1
ii  nama                                1.216-1
ii  swh-plugins [ladspa-plugin]         0.4.17-2

-- no debconf information