Re: [Pyode-user] pyode trimesh compile issues on Linux

[Ethan Glasser-C. <gl...@cs...>]

Christopher Flesher wrote:
> So I decided to try building the wrapper from the latest CVS source.
> Here is the output from setup.py. It seems to build fine despite a
> couple of warnings.
> 
> INFO: <ode/ode.h> found in /usr/include
> INFO: ode_trimesh.c is up to date
> INFO: ode_notrimesh.c is up to date
> INFO: Installing with trimesh support.
> running build
> running build_py
> creating build
> creating build/lib.linux-i686-2.5
> creating build/lib.linux-i686-2.5/xode
> copying xode/__init__.py -> build/lib.linux-i686-2.5/xode
> copying xode/body.py -> build/lib.linux-i686-2.5/xode
> copying xode/geom.py -> build/lib.linux-i686-2.5/xode
> copying xode/transform.py -> build/lib.linux-i686-2.5/xode
> copying xode/parser.py -> build/lib.linux-i686-2.5/xode
> copying xode/node.py -> build/lib.linux-i686-2.5/xode
> copying xode/joint.py -> build/lib.linux-i686-2.5/xode
> copying xode/errors.py -> build/lib.linux-i686-2.5/xode
> running build_ext
> building 'ode' extension
> creating build/temp.linux-i686-2.5
> gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall
> -Wstrict-prototypes -fPIC -I/usr/include -I/usr/local/include
> -I/opt/local/include -I/usr/include/python2.5 -c ode_trimesh.c -o
> build/temp.linux-i686-2.5/ode_trimesh.o -I/usr/include
> ode_trimesh.c: In function ‘__pyx_f_3ode_5World_setLinearDamping’:
> ode_trimesh.c:2949: warning: implicit declaration of function
> ‘dWorldSetLinearDamping’
> ode_trimesh.c: In function ‘__pyx_f_3ode_5World_getLinearDamping’:
> ode_trimesh.c:2970: warning: implicit declaration of function
> ‘dWorldGetLinearDamping’
> ode_trimesh.c: In function ‘__pyx_f_3ode_5World_setAngularDamping’:
> ode_trimesh.c:2997: warning: implicit declaration of function
> ‘dWorldSetAngularDamping’
> ode_trimesh.c: In function ‘__pyx_f_3ode_5World_getAngularDamping’:
> ode_trimesh.c:3018: warning: implicit declaration of function
> ‘dWorldGetAngularDamping’
> gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions
> build/temp.linux-i686-2.5/ode_trimesh.o -L/usr/local/lib
> -L/opt/local/lib -lode -lstdc++ -o build/lib.linux-i686-2.5/ode.so
> -L/usr/lib -lode
> 
> However when I import the file in python it gives the following error:
>>>> import ode
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> ImportError: /usr/lib/python2.5/site-packages/ode.so: undefined
> symbol: dWorldGetLinearDamping
> 
> Any ideas on where to begin? My simulation seems to work in Windows XP
> without any problems but I really need to get it working in Linux.

Hey, sorry, I saw this bug but didn't find the time to respond. It looks
like the warnings are related. You're building on Ubuntu, right? What
version of the libode-dev package are you running? If you update the
wrapper, you'll probably need to update the library it wraps too.

(In a pinch, if you don't use those functions, you can probably modify
the code to take out these calls from declarations.pyx and the methods
that use them from world.pyx.)

Ethan