Re: libpcap detection and linking in tcpdump

[Denis Ovsienko via tcpdump-workers <tcpdump-workers () lists tcpdump org>]

> --- Begin Message ---
>
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> From: Denis Ovsienko <denis () ovsienko info>
>
> Date: Fri, 8 Jan 2021 01:41:27 +0000
>
> On Thu, 7 Jan 2021 16:46:41 -0800
> Guy Harris <gharris () sonic net> wrote:
>
> > 3.1 dates back to 2015.  That might be sufficient to treat as a
> > minimum.
>
> 5 years of backward compatibility might be OK'ish, although from time
> to time I run into such "long-term support" systems that in practice
> mean someone keeps paying good money for "support" for 5-10 years, but
> they don't get bugs fixed or new software versions backported. In my
> own experience this tends to have something to do with RedHat Linux
> distributions.
>
> Regarding the solution you consider, I have not tried the fixes from
> your previous message yet and I do not understand every facet of the
> problem. Have you considered to declare somewhere that certain ways of
> building work only in this and this particular basic manner? And/or to
> disable some smart ways of libpcap detection automatically if cmake is
> too old, instead of failing the build outright?
>
> -- 
>     Denis Ovsienko
>
> --- End Message ---
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