Cerbero & MinGW Version

[Matthew Waters]

That is correct,

Qt and GStreamer are currently built with different c++ exception handling.

In order to have compatible exception handling you need to build *all*
components with the same exception handling which would involve either
recompiling Qt with SJLJ or recompiling GStreamer with DW2.

If you're attempting to build the qt plugin (for qmlglsink and qmlglsrc)
there's a qmake .pro file in there for one to build that plugin with
whatever Qt was built with.  That doesn't help with any of the other c++
plugins though.

Cheers
-Matt


On 05/07/17 16:34, Roland Peffer wrote:
> Hi,
>
> I think I found the real reason for my problems:
>
> What I have are undefined references to __gxx_personality_v0 or
> runtime errors like 
> “the procedure entry point __gxx_personality_v0 could not be located
> <https://stackoverflow.com/questions/18668003/the-procedure-entry-point-gxx-personality-v0-could-not-be-located>” 
> or
> “the procedure entry point __gxx_personality_sj0 could not be located
> <https://stackoverflow.com/questions/18668003/the-procedure-entry-point-gxx-personality-v0-could-not-be-located>” 
>
> when I tried to mix Qt and gstreamer builds under windows.
>
> The errors are only related to plugins that are linked against the
> stdc++ library.
>
> My first idea was that this is related to the different MinGW Version
> ( 5.3.0 coming with QT , and 4.7.3 from cerebro build).
>
> But after I managed to run a cerbero cross build  for win32 under
> Linux  with the distribution provided gcc 5.3.1
> the problem was still there.
>
> The real problem is related to 2 different ways of exception handling
> in gcc:
> https://gcc.gnu.org/wiki/WindowsGCCImprovements
> The Qt build uses DWARF-2 (DW2) -> __gxx_personality_v0
> and the cebero cross builds use setjmp/longjmp (SJLJ) exception
> handling -> __gxx_personality_sj0
>
> Anyone had the same issue yet and found an easy solution?
>
> Regards Roland
>
>

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