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[IOhannes m zmoelnig <1939293@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Pd-0.50.2-3 (as shipped with focal) is unable to load the external
objects (plugins) shipped in the "puredata-extra" package (which is
built from the same source package as "puredata" itself) due to a
problem with some symbols that should be provided by libm.

The missing symbols are `__exp_finite`, `__log_finite`, `__logf_finite` and `__pow_finite`.
The affected externals are:
- bonk~
- choice
- fiddle~
- sigmund~

The problem appears to come from a change in the symbols when upgrading
from glibc-2.30 to glibc-2.31 (e.g. see
https://sourceware.org/pipermail/libc-alpha/2020-May/113773.html)

[Test Plan]

a quick way to check whether the objects can be loaded is by running
this script (after installing the "puredata-extra" package):

~~~
find /usr/lib/puredata/extra/*/ -name "*-help.pd" -exec pd -nrt -nogui -send "pd quit" {} ";"
~~~

i've attached the output of such a test run (note the lines starting
with "error:")

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: puredata-extra 0.50.2-3
ProcVersionSignature: Ubuntu 5.4.0-80.90-generic 5.4.124
Uname: Linux 5.4.0-80-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
Date: Mon Aug  9 11:23:35 2021
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: puredata
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: puredata (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal uec-images

** Attachment added: "test run that shows missing symbols"
   https://bugs.launchpad.net/bugs/1939293/+attachment/5516803/+files/pd-0.50.2-3.log

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https://bugs.launchpad.net/bugs/1939293

Title:
  unable to load externals: undefined symbol "__pow_finite" and similar

Status in puredata package in Ubuntu:
  New

Bug description:
  Pd-0.50.2-3 (as shipped with focal) is unable to load the external
  objects (plugins) shipped in the "puredata-extra" package (which is
  built from the same source package as "puredata" itself) due to a
  problem with some symbols that should be provided by libm.

  The missing symbols are `__exp_finite`, `__log_finite`, `__logf_finite` and `__pow_finite`.
  The affected externals are:
  - bonk~
  - choice
  - fiddle~
  - sigmund~

  The problem appears to come from a change in the symbols when
  upgrading from glibc-2.30 to glibc-2.31 (e.g. see
  https://sourceware.org/pipermail/libc-alpha/2020-May/113773.html)

  [Test Plan]

  a quick way to check whether the objects can be loaded is by running
  this script (after installing the "puredata-extra" package):

  ~~~
  find /usr/lib/puredata/extra/*/ -name "*-help.pd" -exec pd -nrt -nogui -send "pd quit" {} ";"
  ~~~

  i've attached the output of such a test run (note the lines starting
  with "error:")

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: puredata-extra 0.50.2-3
  ProcVersionSignature: Ubuntu 5.4.0-80.90-generic 5.4.124
  Uname: Linux 5.4.0-80-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.18
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Mon Aug  9 11:23:35 2021
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: puredata
  UpgradeStatus: No upgrade log present (probably fresh install)

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