Qt-gstreamer with sdk mac frameworks

[Hopper, James E.]

--haven't tried to package  qt-gstreamer yet, but what's the problem
--with apple's gcc, why do you need to gcc > 4.5 ?
--
--Andoni
The Readme says:


if gcc is used as the compiler, libstdc++ version 4.5 or later is
required at runtime. This is due to a bug in earlier versions of libstdc++ that
sometimes makes dynamic_cast fail under conditions where it should not.

When i get it to build it gets an assert error because the dynamic cast returns a null pointer.  Seems there should be a way to code around the dynamic_cast issue so that you don't have to replace the apple compiler, but i don't know enough about c++ to know how to do that.

best jim
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