Re: [Paparazzi-devel] FlightGear not working

[Andreas Gaeb]

Am 05.12.2011 18:51, schrieb Felix Ruess:
> I have no problems on Ubuntu Oneiric (32bit) and with flightgear
> package 2.0.0-4ubuntu1.
> But use the native-gui option like Stephen pointed out, and like it's
> documented on the wiki.
> 
> Maybe this is an issue on 64bit?
Very likely, probably caused by different alignment of the members of
the FGNetGui structure in sw/simulator/flight_gear.h. There is a #pragma
pack(4) around the structure in Paparazzi, which is correct if you want
to send to a 32bit FlightGear. For a 64bit FlightGear, you need to use
#pragma pack(8), I suppose. Best of all would be to use #pragma pack(1)
on both programs and any architecture, but that is only possible if you
recompile FlightGear.

Best regards,
        Andreas