On 30/09/2017 16:25, Kay Ulbrich wrote:
> on a current Cygwin-installation, xmlstarlet fails to validate a valid
> XML document against an XML schema (XSD).
>
> [snip]
>
> I found a quite recent similar bug report for Debian, there seems to be
> a problem with certain versions of libxml:
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=832602

Yaakov, please could you consider taking the patch attached, which is 
from Debian Stretch [1]. Or you may prefer to update to libxml2-2.9.5, 
as the patch has been incorporated upstream. Either should address the 
problem reported above.

Dave.

[1] - https://packages.debian.org/stretch/libxml2