[fpc-pascal] TThread.Synchronize() in shared library

[Matthias Klumpp]

> Set the thread manager of the library to the main application thread
> manager. That should hopefully work. But it is not guaranteed; there
> are many issues with libraries and threads under linux.
> 
> Michael.
How do I do that?
(There is also another thing which I have forgotten: The library should be
compatible with applications written in C...)

 Matthias