On Tue, Jul 16, 2013 at 7:58 AM, Mark Miesfeld <miesfeld@gmail.com> wrote:

  I notice that no matter what the error# is, sysGetErrNoMsg() seems to
return "Unknown". 

I looked at the Unix Extensions package, that's a bug pure and simple.  You are unlikely to get bugs fixed unless you open a bug report.  You do so on SourceForge for the project:

https://sourceforge.net/p/oorexx/bugs/?source=navbar

SourceForge calls reports 'tickets' so you want to create a new ticket.  We have a separate tracker for documentation bugs and for requests for enhancements

--
Mark Miesfeld