This bug was fixed in the package puredata - 0.50.2-3ubuntu0.1
---------------
puredata (0.50.2-3ubuntu0.1) focal; urgency=medium
* No-change rebuild for math symbols from glibc-2.31.
(LP: #1939293)
-- IOhannes m zmölnig (Debian/GNU) <umlae...@debian.org> Mon, 09 Aug
2021 11:58:58 +0000
** Changed in: puredata (Ubuntu Focal)
Status: Fix Committed => Fix Released
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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:
Fix Released
Status in puredata source package in Focal:
Fix Released
Bug description:
[Impact]
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)
A simple rebuild of the package seems to fix the problem.
To trigger a rebuild I've added a debdiff that bumps the version
number to "0.50.2-3build1~ubuntu20.04.1" (i hope this is the correct
version scheme for such an upload).
[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 (failing) test run (note the lines
starting with "error:")
[Where problems could occur]
The rebuild apparently fixes the problem, although a more correct fix would
probably be to add "-lm" to the linker-flags when building the plugins.
(This is what upstream did for the Pd-0.51 release).
In order to keep the impact of my patch minimal, i have chosen to just
trigger a rebuild.
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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