Re: [Paparazzi-devel] FlightGear not working

[Eduard Iten]

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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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