Re: SIGSEGV from qwt3diodummy constructor

[Micha B. <kri...@us...>]

> I am not too familiar with qwt_plot3d and have no experience with labplot,
> but the type of error looks to me like a typical mismatch of different Qt
> versions.

Perhaps true, but I'll do my guess work too.
I've introduced the dummy variable in the past, because I received the
same kind of crash when producing a qwt3d Windows dll in VC6 _without_
the variable declared. The IO object is a singleton, created on the fly
inside 'static Container& wlist()' and I suspect something goes wrong here
with global object destruction.
I plan to release a version of qwt3d this weekend and will make an
attempt again to understand what happens when it comes to dll's.
I don't like this specific kind of uncertainty (or my missing knowledge)
anyway, so its a good time to delve in again...

Micha