Re: [Paparazzi-devel] FlightGear not working

[Felix Ruess]

Hi Eduard,

can you please test again, now it should use the pack(4) pragma on osx
and pack(8) on other 64bit systems.

Cheers, Felix

On Tue, Dec 6, 2011 at 3:35 PM, Eduard Iten <address@hidden> wrote:
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> Am 06.12.2011 14:35, schrieb Eric Parsonage:
>> Eduard
>>
>> I pushed a change that should fix this problem on 64 bit linux.
>>
>> It would be great if you could test it for me on 64 bit linux. I
>> have already tested it on OSX
> Hi Eric,
>
> no, it doe's not work on 64bit Linux, I just tested it. It works with
> paparazzi on 64bit linux and fgfs in a 32bit virtual machine.
> I think this problem is not so easy to resolve, at least not if you
> got a multi computer setup. Look at the lines here, also in your change:
>
> index b5515c8..0faf811 100644
> - --- a/sw/simulator/flight_gear.h
> +++ b/sw/simulator/flight_gear.h
> @@ -211,7 +211,9 @@ struct FGNetMiniFDM {
>  #define FG_NET_GUI_VERSION 7
>  #define FG_NET_GUI_MAX_TANKS 4
>
> - -#ifdef __x86_64__
> +// FIXME: Flightgear on OSX is still 32 bit get rid
> +// off these pragmas when it goes to 64 bit.
> +#ifdef __x86_64__ && __APPLE__
>  #pragma pack(push)
>  #pragma pack(4)
>  #endif
> @@ -249,7 +251,7 @@ struct FGNetGUI {
>   float course_deviation_deg; // degrees off target course
>   float gs_deviation_deg;     // degrees off target glide slope
>  };
> - -#ifdef __x86_64__
> +#ifdef __x86_64__ && __APPLE__
>  #pragma pack(push)
>  #pragma pack(pop)
>  #endif
>
> For me on 64bit oneiric with both paparazzi and fgfs being 64bit, the
> pack(4) have to be pack(8) to work (of course, you also have to drop
> the __APPLE__ part.
>
> Regards, Edi
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