[SRU]PythonMagick is not usable because of undefined symbols

[Stepan Bakshaev]

Impact of the bug:
The pythonMagick package is unusable as the python objects fail to load (missing functions)

Solution in Development branch:
Newer version of pythonmagick (0.9.0-1) has been or will be synced from Debian

Solution in current version (Jaunty):
Patch the Makefile to fix the incorrect linked libraries (see attached debdiff)

TEST CASE:
- run ipython
- within ipython, load PythonMagick. The output should be the following:
In [1]: import PythonMagick
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)

/home/vdejager/<ipython console> in <module>()

/var/lib/python-support/python2.6/PythonMagick/__init__.py in <module>()
      2
      3 class Image(_PythonMagick.Image):
      4 pass
      5
      6 class Blob(_PythonMagick.Blob):

ImportError: /var/lib/python-support/python2.6/PythonMagick/_PythonMagick.so: undefined symbol: _ZTIN5boost6python15instance_holderE

Risk of regressions:
None as the package is not usable in the actual state.

[Philip Muškovac (yofel)]

confirmed on Jaunty alpha6 x86_64

[Oliver Marks (oly)]

same problem jaunty x86_32

[Michael Bienia (geser)]

I tried a rebuild of the package (after modifying debian/rules to point to the python2.6 includes) but it failed:

make[3]: Entering directory `/tmp/buildd/pythonmagick-0.8'
/bin/bash ./libtool --tag=CXX --mode=link g++ -g -O2 -g -Wall -O2 -DBOOST_PYTHON_DYNAMIC_LIB -avoid-version -module -L/usr/lib -lMagick++ -lMagickCore -l -Wl,-Bsymbolic-functions -o _PythonMagick.la -rpath /usr/lib/python2.6/dist-packages/PythonMagick pythonmagick_src/libpymagick.la helpers_src/libhelper.la
libtool: link: g++ -shared -nostdlib /usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../lib/crti.o /usr/lib/gcc/x86_64-linux-gnu/4.3.3/crtbeginS.o -Wl,--whole-archive pythonmagick_src/.libs/libpymagick.a helpers_src/.libs/libhelper.a -Wl,--no-whole-archive -L/usr/lib /usr/lib/libMagick++.so -L/usr/lib/X11 /usr/lib/libMagickWand.so /usr/lib/libMagickCore.so /usr/lib/liblcms.so /usr/lib/libtiff.so /usr/lib/libfreetype.so /usr/lib/libjpeg.so -lXext -lSM -lICE -lX11 -lXt -lbz2 -lz -lgomp -lpthread /usr/lib/libltdl.so -ldl -l -L/usr/lib/gcc/x86_64-linux-gnu/4.3.3 -L/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../lib -L/lib/../lib -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../.. -lstdc++ -lm -lc -lgcc_s /usr/lib/gcc/x86_64-linux-gnu/4.3.3/crtendS.o /usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../lib/crtn.o -Wl,-Bsymbolic-functions -Wl,-soname -Wl,_PythonMagick.so -o .libs/_PythonMagick.so
/usr/bin/ld: cannot find -l-L/usr/lib/gcc/x86_64-linux-gnu/4.3.3
collect2: ld returned 1 exit status
make[3]: *** [_PythonMagick.la] Error 1

[Launchpad Janitor (janitor)]

This bug was fixed in the package pythonmagick - 0.8-0ubuntu2

---------------
pythonmagick (0.8-0ubuntu2) jaunty; urgency=low

  * debian/control: added XS-Python-Version: all
  * debian/rules: updated CPPFLAGS to include python2.6
  * debian/patches/python2.6.diff: patch configure to take into account
    python2.6 (LP: #345208)

 -- Fabrice Coutadeur <email address hidden> Fri, 27 Mar 2009 18:48:21 +0000

[Stepan Bakshaev (step2back)]

it's useless

In [1]: import PythonMagick
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)

/home/stepan/<ipython console> in <module>()

/var/lib/python-support/python2.6/PythonMagick/__init__.py in <module>()
      2
      3 class Image(_PythonMagick.Image):
      4 pass
      5
      6 class Blob(_PythonMagick.Blob):

ImportError: /var/lib/python-support/python2.6/PythonMagick/_PythonMagick.so: undefined symbol: _ZTIN5boost6python15instance_holderE

[Stepan Bakshaev (step2back)]

PythonMagick still "broken"

[Oliver Marks (oly)]

Same problem here, i did find this for an older version but same problem may help who ever fixes this to track it down quicker.

http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=9744&start=0&st=0&sk=t&sd=a

[VidJa (vidja-hunter)]

Same problem here. I went back to 8.04. This has to be fixed before a new lts version

vidja@webserver:~$ ipython
/var/lib/python-support/python2.6/IPython/Magic.py:38: DeprecationWarning: the sets module is deprecated from sets import Set
Python 2.6.2 (release26-maint, Apr 19 2009, 01:56:41)
Type "copyright", "credits" or "license" for more information.

IPython 0.9.1 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object'. ?object also works, ?? prints more.

In [1]: import PythonMagick
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)

/home/vdejager/<ipython console> in <module>()

/var/lib/python-support/python2.6/PythonMagick/__init__.py in <module>()
      2
      3 class Image(_PythonMagick.Image):
      4 pass
      5
      6 class Blob(_PythonMagick.Blob):

ImportError: /var/lib/python-support/python2.6/PythonMagick/_PythonMagick.so: undefined symbol: _ZTIN5boost6python15instance_holderE

[mistr (mstrecke)]

Same problem here. The bug is present in the 32 and 64 bit version of Jaunty.

[Tobias McNulty (tmcnulty1982)]

same problem here. running 32-bit version of jaunty

[Martijn Bastiaan (hmb1)]

Confirmed on Jaunty 64

[VidJa (vidja-hunter)]

As a fix: I compiled PythonMagick 0.9. It works, but of course the package
is out of the update cycles.

On Fri, May 22, 2009 at 8:09 PM, Martijn Bastiaan <
<email address hidden>> wrote:

> Confirmed on Jaunty 64
>
> --
> Broken package
> https://bugs.launchpad.net/bugs/345208
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “pythonmagick” source package in Ubuntu: Confirmed
>
> Bug description:
> $ sudo apt-get install python-pythonmagick
> [sudo] password for stepan:
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> Some packages could not be installed. This may mean that you have
> requested an impossible situation or if you are using the unstable
> distribution that some required packages have not yet been created
> or been moved out of Incoming.
> The following information may help to resolve the situation:
>
> The following packages have unmet dependencies:
> python-pythonmagick: Depends: python (< 2.6) but 2.6.1-0ubuntu3 is to be
> installed
> E: Broken packages
>

[Andrew Tipton (kiwidrew)]

This issue has now gone unfixed for nearly three months. I can confirm that the latest python-pythonmagick package (0.8-0ubuntu2) on Jaunty 64-bit still reports an undefined symbol "_ZTIN5boost6python15instance_holderE".

Is there something blocking this from being fixed? Is there anything else that can be done to assist the maintainer?

[Fabrice Coutadeur (fabricesp)]

A patch exists in 0.9.0. I will try to adapt it to fix this problem.

[Andrew Tipton (kiwidrew)]

The issue stems from libboost_python.so not being linked as part of the _PythonMagick.so build process. Starting Python like:

LD_PRELOAD=/usr/lib/libboost_python.so python
Python 2.6.2 (release26-maint, Apr 19 2009, 01:58:18)
[GCC 4.3.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import PythonMagick
>>>

works fine. The configure script seems to skip adding -lboost_python to the LDFLAGS because when checking for libboost_python, the test program that it compiles doesn't include -lpython2.6 -- and libboost_python doesn't link to libpython2.6 already. So lots of undefined symbols, the test program fails, and the configure script decides libboost_python doesn't exist.

(But it's a twisty maze of buildscripts and so I ultimately didn't figure out what magic line needed changed...)

[Fabrice Coutadeur (fabricesp)]

Hi,

That's exactly what I'm trying to do: either fix the libboost detection or force the link with libboost_python

Thanks,

Fabrice

[Fabrice Coutadeur (fabricesp)]

Debdiff with the fix:
- debian/rules: added LDFLAGS to link with python2.6 and fix this way the libboost_python library detection
- debian/patches/libboost-python_link_fix.diff: fix Makefile.in to use the correct variable for libboost_python library in _PythonMagick_la_LDFLAGS

[Grzegorz "McCartney" Oledzki (grzegon)]

I confirm the problem disappeared after upgrading to Version: 0.9.1-1 from Karmic.

[Joubert (joubert-joubster)]

Confirmed that pythonmagick_0.8-0ubuntu3.debdiff by fabrice_sp (post #18 above) works. I'm running Jaunty AMD64.

[Devid Antonio Filoni (d.filoni)]

motu-sru ACK, please upload the debdiff (comment #18) uploaded by fabrice_sp.

[Benjamin Drung (bdrung)]

uploading, unsubscribing sponsors

[Martin Pitt (pitti)]

Accepted pythonmagick into jaunty-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

[Uroš Gaber (uros-gaber)]

I have ceramic ubuntu and i also get:
/var/lib/python-support/python2.6/PythonMagick/_PythonMagick.so: undefined symbol: _ZTIN5boost6python15instance_holderE

[Uroš Gaber (uros-gaber)]

No i wrote whrong version. This error happens on ubuntu server 9.04.

[Andreas Wenning (andreas-wenning)]

I can confirm, that the version from jaunty-proposed fixes the problem.

Using the version from jaunty-release:
root@miraculix:/# python -c 'import PythonMagick'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/var/lib/python-support/python2.6/PythonMagick/__init__.py", line 1, in <module>
    import _PythonMagick
ImportError: /var/lib/python-support/python2.6/PythonMagick/_PythonMagick.so: undefined symbol: _ZTIN5boost6python15instance_holderE

And using the version from jaunty-proposed this (as expected) produces no output:
root@miraculix:/# python -c 'import PythonMagick'

[Launchpad Janitor (janitor)]

This bug was fixed in the package pythonmagick - 0.8-0ubuntu2.1

---------------
pythonmagick (0.8-0ubuntu2.1) jaunty-proposed; urgency=low

  * debian/rules: added LDFLAGS to link with python2.6 and fix this way the
    libboost_python library detection (LP: #345208)
  * debian/patches/libboost-python_link_fix.diff: fix Makefile.in to use the
    correct variable for libboost_python library in _PythonMagick_la_LDFLAGS

 -- Fabrice Coutadeur <email address hidden> Wed, 17 Jun 2009 06:27:17 +0200