[fpc-pascal] Libxml2 - How to get messages on Linux?

[Henry Vermaak]

On Fri, May 25, 2018 at 12:48:20PM +0200, Gabor Boros wrote:
> 2018. 05. 24. 9:37 keltezéssel, Michael Van Canneyt írta:
> >Are these functions callbacks ? If so, is the calling convention correct ?
> 
> I used xmlSchemaSetValidErrors and the documentation say "Set the error and
> warning callback informations". Tried with and without cdecl.

These functions use varargs, so the calling convention is different:

https://www.freepascal.org/docs-html/ref/refsu87.html

I thought it only works with external code, though.  Would be useful if
the documentation mentioned anything.

Henry