[fpc-pascal] Stack problem in externally called callback function

[Wimpie Nortje]

Jonas Maebe wrote:
> I think the "easiest" way for you to do this would be to do something 
> similar to what the FPC rtl does: write your own function that does 
> all of this initialisation, and pass that one to pthread_create as the 
> function to run in the new thread. Then from this function perform all 
> initialisation, and finally call the original function.
Thanks. I have done this and it is working. It is not the ideal solution 
though....BeginThread expects a 'register' function as the thread 
function, while the library provides a 'cdecl' function. This means I 
had to wrap the C thread function into another function call. So there 
are now quite a bit of layering happening on top of the original thread 
function. I think it would be good if BeginThread can accept both 
register functions and cdecl functions.

And then I hope the library author accept my changes.