[Playerstage-users] RE: Error loading driver as shared object

[Brian G. <ge...@ai...>]

Tim Arney wrote:

> I've come across this error when trying to load the player-mod example
> driver straight out of the box:
>  
>  --------
>  ** Player v1.5 ** Opening shared object ./exampledriver.so...
>    ./exampledriver.so: undefined symbol:
>  _ZN11DriverTable9AddDriverEPccPFP7CDeviceS0_P10ConfigFileiE
>   [TCP]
>  
>  Parsing configuration file "example.cfg"...
>    loading driver "exampledriver" as device "6665:position:0"
>  player error : main.cc:parse_config_file():
>      Couldn"t find driver "exampledriver"
>  --------
>  
> I get it when loading my own drivers as well.  Any ideas?

hi Tim,

Brad posted some info on this issue a while back:

  http://sourceforge.net/mailarchive/message.php?msg_id=8531079

You might want to try the technique he gives there.  

I wasn't able to get it to work; I suspect that it's a gcc version
problem (they recently fixed a bug in g++ regarding the definition of
constructor and destructor functions in shared libs).

        brian.

-- 
Brian P. Gerkey                    ge...@ai...
Stanford AI Lab                    http://ai.stanford.edu/~gerkey