Comment 2 for bug 238450

EAI_SYSTEM is from #include <netdb.h> and looking at Cygwin's netdb.h at:

http://cygwin.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/include/netdb.h?rev=1.10&content-type=text/x-cvsweb-markup&cvsroot=src

it does have EAI_SYSTEM, but you must not be using that same header. But this doesn't really matter because:

Cygwin does not implement getaddrinfo and so Ikarus implements it's own. So we'll need to make Ikarus's getaddrinfo work with this. Maybe an #if (!HAVE_GETADDRINFO) around that EAI_SYSTEM switch.