Subject: Re: bsd.pkg.mk and IPv6 issue
To: Frederick Bruckman <firstname.lastname@example.org>
From: None <email@example.com>
Date: 01/20/2000 22:18:40
>> I'm still wondering how to identify the former case and the latter
>> case. Candidates are as follows:
>> - Check kernel AF_INET6 support - looks unwise. INET6 can be
>> turned off.
>> - Check existence of certain file - like /usr/include/netinet6/ip6.h
>> - others?
>> I think the second option (certain file) is the way to go. If you have
>> any other ideas, please let me know.
>You could patch the package so that it builds an ipv6 version if gnu
>configure finds the header file and sets HAVE_NETINET6_IP6_H
>(overridable by a configure option). That way, if the author accepts
>the patch, it will build out of the box on NetBSD-1.4.x, NetBSD-1.5,
>and maybe other systems, too.
There are, of course, such cases exist. But they are the lucky ones.
- some software do not use autoconf at all.
- some software require extra "--enable-ipv6" argument to configure.
(by default compiles to IPv4 only)
- and more wacky cases as much as you can imagine :-)