Re: [Opensg-users] SceneFilehandler::the()=NULL for static libs?

[Andreas Z. <and...@zg...>]

Hi Daniel,

when you link with a static library, only symbols whose definitions
are being looked for will be pulled into the resulting executable or 
shared library. Adding the options -Xlinker -whole-archive to the linker 
should do the trick. Actually the fileio classes are not referenced in 
the OpenSG lib itself nor your executable so they are not linked into it 
and never get instantiated and this leads to the NULL pointer, well the 
NULL pointer is a bug I fixed it. Thanks for the report.

Andreas

> Hello,
> 
> I just compiled the OPENSG1.4 release.
> Then I tried to link the static dbgLnk libs.
> I renamed them by removing the Lnk, such that my Makefiles dont need to
> be changed.
> Why did u add the Lnk to the lib names? Is there a special reason?
> 
> Well, my problem is that my program segfaults at the
> ScenefileHandler::the().read call, because _the is a NULL pointer.
> The same for the 10loading tutorial.
> 
> When using the dynamic .so libs all works as usual.
> 
> Anybody any ideas, i would really appreciate the option to link my
> executables statically...
> 
> Greets,
> 	Daniel Grest
> 


-- 
Andreas Zieringer       am...@ig...
Fraunhofer IGD - A4     phone +49 (0)6151 155 289
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