Thank you for your rapid response.

2015-06-11 1:42 GMT+09:00 Takashi Kato <xxxxxx@ymail.com>:
> On 10/06/2015 15:53, Masanori Ogino wrote:
>>
>> I came up with three solutions:
>> 1. not defining unsupported constants (I guess it's non-conformant to the
>> SRFI),
>> 2. defining them as dummy values (0, #f, the `undefined` value, etc.), or
>> 3. defining them as the platform's values and masking them in
>> make-*-socket.
>
> Preferred way would be #2 as fallback library of reference
> implementation. It would be nice if the value can be used as a usual
> flag so that users don't have to absorb platform differences.
>
> NB: Sagittarius sets 0 for AI_V4MAPPED on FreeBSD.
>
>> Which solution is permitted and/or recommended?
>> I'm sorry if the problem has already been discussed.
>
> As far as I remember, it wasn't. Good point :)
>
> _/_/
> Takashi Kato
> E-mail: xxxxxx@ymail.com

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Masanori Ogino <xxxxxx@gmail.com>
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