On Tuesday 29 November 2005 15:27, Victor Lazzarini wrote:

> I identified the problem and it is in winFLTK.c. For some reason,
> setting the csoundYield callback in line 78 before check if it is
> graphable etc causes the problem. If I remove that function call
> and the ifdefs NO_FLTK_THREADS etc, it solves the problem.
>
> The question is, does it have any other undesirable effect?

Yes, as the widget opcodes need Fl::wait() to be called somewhere,
and if you remove the setting of a yield callback, the opcodes will
probably not work unless graphs are also used at the same time.
Also, this issue seems to be Mac-specific, and I do not really
understand why setting the yield callback interferes with the
creation of other threads that do not even use FLTK.


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