jabberd 1.4.2 fails on netbsd-4

[Greg Troxel <gdt%ir.bbn.com@localhost>]

I have a machine running jabberd 1.4.2nb5 and squid.  It was 3.99.15,
and I just upgraded it to 4.0_BETA2 (cvs from yesterday).  It's
XEN2_DOMU, but I suspect that doesn't matter.

jabberd accepted connections on 5223 but apparently didn't read the
data.  ps said it was in pipewait.  I rebuilt jabberd fresh on another
netbsd-4 machine (running binaries built from the same build as the
jabber server), but it behaved the same way.

I know jabberd has its own pth, so I suspect some bad pth interaction.

This server is too important, so I downgraded to the netbsd-3 branch and
it's now running fine.

I'll look into this on another netbsd-4 machine.

If anyone has advice about how to debug this other than running jabberd
under gdb or ktrace (which I'll try), experience with jabberd under
netbsd-4, or advice about updating to jabberd 2 or something else (I
need SSL/TLS, and to require on the server that only SSL/TLS connections
are accepted), I'd appreciate it.