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

[Gabor Boros]

Hi All,

I need to accomplish validate XML files with an XSD. Found libxml in 
packages and works as expected with Win32. But I have problem with 
messages on Linux 64bit. Got %s instead the real message text. I use the 
below code to get the messages. Any idea why not works with Linux64 bit?

var
   SL_Warning,SL_Error:TStringList;

procedure SchemaValidityWarningFunc(ctx: Pointer; const msg: PChar);
begin
   SL_Warning.Add(msg);
end;

procedure SchemaValidityErrorFunc(ctx: Pointer; const msg: PChar);
begin
   SL_Error.Add(msg);
end;

Gabor