xfce4-session warning about an unresolvable local hostname

[Guido Berhoerster]

Hello,

as of recently openSUSE does not provide an entry in /etc/hosts
for mapping a loopback IP address to the local hostname by
default any more.  This means that now on many desktop boxes the
local hostname is not resolvable which causes xfce4-session to
display a scary warning message ("This will prevent Xfce from
operating correctly."). That specific code apparently hasn't been
touched in a while, does this still apply and if so, what exactly
is supposed to break here (the session comes up fine for me if I
just ignore it)?
Thanks,
-- 
Guido Berhoerster