Compiling 1.9.0: unresolvable reference to symbol Py...

Compiling or Editing the Panda Source
1

Hello!

I am trying to compile from sources, but I am having some troubles. The command I am issuing is the following:

python makepanda/makepanda.py --everything --installer --no-egl --no-gles --no-gles2 --no-maya6 --no-maya65 --no-maya7 --no-maya8 --no-maya85 --no-maya2008 --no-maya2009 --no-maya2010 --no-maya2011 --no-maya2012 --no-maya2013 --no-max6 --no-max7 --no-max8 --no-max9 --no-max2009 --no-max2010 --no-max2011 --no-max2012 --no-fftw --no-fftw --threads=3 --outputdir ../Build/SDK

The result of that is the following series of warnings at the end of the compilation phase:

...
[ 97%] Compressing ../Build/SDK/models/zup-axis.egg.pz
../Build/SDK/models/zup-axis.egg.pz
[100%] Building installer
dpkg-shlibdeps: warning: debian/panda3d1.9/usr/lib/x86_64-linux-gnu/panda3d/libp3rocket.so.1.9 contains an unresolvable reference to symbol PyGILState_Ensure: it's probably a plugin
dpkg-shlibdeps: warning: 1 similar warning has been skipped (use -v to see it)
dpkg-shlibdeps: warning: debian/panda3d1.9/usr/lib/x86_64-linux-gnu/panda3d/libp3dtool.so contains an unresolvable reference to symbol PyList_GetItem: it's probably a plugin
dpkg-shlibdeps: warning: 7 other similar warnings have been skipped (use -v to see them all)
dpkg-shlibdeps: warning: debian/panda3d1.9/usr/lib/x86_64-linux-gnu/panda3d/libp3dtoolconfig.so.1.9 contains an unresolvable reference to symbol PyErr_Occurred: it's probably a plugin
dpkg-shlibdeps: warning: 39 other similar warnings have been skipped (use -v to see them all)
dpkg-shlibdeps: warning: debian/panda3d1.9/usr/lib/x86_64-linux-gnu/panda3d/libp3rocket.so contains an unresolvable reference to symbol PyGILState_Ensure: it's probably a plugin
dpkg-shlibdeps: warning: 1 similar warning has been skipped (use -v to see it)
dpkg-shlibdeps: warning: debian/panda3d1.9/usr/lib/x86_64-linux-gnu/panda3d/libp3dtoolconfig.so contains an unresolvable reference to symbol PyErr_Occurred: it's probably a plugin
dpkg-shlibdeps: warning: 39 other similar warnings have been skipped (use -v to see them all)
dpkg-shlibdeps: warning: debian/panda3d1.9/usr/lib/x86_64-linux-gnu/panda3d/libpanda.so contains an unresolvable reference to symbol PyExc_FutureWarning: it's probably a plugin
dpkg-shlibdeps: warning: 18 other similar warnings have been skipped (use -v to see them all)
dpkg-shlibdeps: warning: debian/panda3d1.9/usr/lib/x86_64-linux-gnu/panda3d/libpanda.so.1.9 contains an unresolvable reference to symbol PySequence_Tuple: it's probably a plugin
dpkg-shlibdeps: warning: 18 other similar warnings have been skipped (use -v to see them all)
dpkg-shlibdeps: warning: debian/panda3d1.9/usr/lib/x86_64-linux-gnu/panda3d/libp3direct.so contains an unresolvable reference to symbol PyString_AsStringAndSize: it's probably a plugin
dpkg-shlibdeps: warning: 40 other similar warnings have been skipped (use -v to see them all)
dpkg-shlibdeps: warning: debian/panda3d1.9/usr/lib/x86_64-linux-gnu/panda3d/libp3dtool.so.1.9 contains an unresolvable reference to symbol PyUnicodeUCS4_AsWideChar: it's probably a plugin
dpkg-shlibdeps: warning: 7 other similar warnings have been skipped (use -v to see them all)
dpkg-shlibdeps: warning: debian/panda3d1.9/usr/lib/x86_64-linux-gnu/panda3d/libp3direct.so.1.9 contains an unresolvable reference to symbol PyString_FromString: it's probably a plugin
dpkg-shlibdeps: warning: 40 other similar warnings have been skipped (use -v to see them all)
dpkg-deb: building package `panda3d1.9' in `panda3d1.9_1.9.0_amd64.deb'.
Storing dependency cache.
Build successfully finished, elapsed time: 7 hours 53 min

Now the installer is produced but clearly something went wrong. In fact, if I insist in installing with
sudo dpkg --install panda3d1.9_1.9.0_amd64.deb, and then run one panda3d code I get:

$ python main.py 
Traceback (most recent call last):
  File "main.py", line 14, in <module>
    from pandac.PandaModules import WindowProperties
  File "/usr/share/panda3d/pandac/PandaModules.py", line 26, in <module>
    from panda3dVisionModules import *
  File "/usr/share/panda3d/pandac/panda3dVisionModules.py", line 3, in <module>
    from panda3d.vision import *
ImportError: /usr/local/lib/libp3vision.so.1.9: undefined symbol: _ZN10TypeHandle16dec_memory_usageENS_11MemoryClassEi

Does anybody have a clue of why I am having this problem?

Please note that I always had some trouble compiling from sources (these kind of warnings did appear the last time I compiled the dev version, which was January of this year, but I was able to launch the python code nonetheless).

Thanks in advance

Ode

2

The warnings are completely unrelated to the problems you are having with importing the panda3d modules.

The issue is that you have a conflicting build of Panda3D on your computer, presumably installed using installpanda rather than with the --installer option. You’ll have to remove at least /usr/local/lib/panda3d and /usr/local/share/panda3d , possibly also any panda3d binaries that were installed into /usr/local/bin .

3

Wow. Indeed I had a full set of libraries in /usr/local/lib, probably the remnants of my first trials. Everything works fine now. Thanks a lot!