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Date: Fri, 17 Jan 2014 14:29:45 -0700
From: Warren Young <warren AT etr-usa DOT com>
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To: Cygwin-L <cygwin AT cygwin DOT com>
Subject: Re: socat with IP6 support?
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On 1/17/2014 13:45, Aaron Humphrey wrote:
>
> So why does it think it
> requires ip6.h if it compiles fine without it?

It's probably an unwarranted Linuxism.  As I read POSIX[*], it is legal 
to have IPv6 definitions in the same old headers the IPv4 interface is 
defined in, as Cygwin does.

So, three choices:

1. Cygwin could add stub headers for these to placate socat and any 
other software that uses their presence as an IPv6 test; or

2. Someone can lobby socat to fix their test; or

3. The socat package maintainer can patch the software before building 
it.  If it were me, I'd first try diddling config.h after the configure 
script generates it, rather than hack the configure script itself.  If 
that works, it's a one-line fix.


[*] http://goo.gl/lMIJUK

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