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Re: ipv6 patch

>> 	The attached patches will make the following two changes:
>> 	- "configure" identifies IPv6 stack type by header files, link
>> 	  appropriate library files.
>I have applied the patch, but it seems non-optimal to have a list of
>all known implementations.  Is there any better way of doing this?

	I believe there's no standard place for libinet6.a, we do something
	like this until IPv6 is merged into all UNIXes.  Sad thing is that
	we can't use $host_id for this...

>> 	- bind AF_INET6 socket and AF_INET socket, for IPv6 implementations
>> 	  without IPv6 "mapped addr".
>Applied.  How common is it not to have "mapped addr"?  I thought it
>was a required feature?

	It really depend on TCP implementation in that stack.  There are
	several stacks exist.  I think it is safer to do add_port() for both
	ones (AF_INET6 and AF_INET), than assume that AF_INET6 will do the