Re: upcoming tcpslice release

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

> --- Begin Message ---
>
>
> From: Denis Ovsienko <denis () ovsienko info>
>
> Date: Sun, 16 Oct 2022 18:01:50 +0100
>
> On Sat, 15 Oct 2022 15:21:42 -0700
> Guy Harris <gharris () sonic net> wrote:
>
> > On Oct 15, 2022, at 8:03 AM, Denis Ovsienko via tcpdump-workers
> > <tcpdump-workers () lists tcpdump org> wrote:
> >
> > > As it turns out, on Linux tcpslice currently fails to build with the
> > > current master branch of libpcap.  This reproduces in all Linux CI
> > > builds and also on my Ubuntu 20.04 PC.  The root cause seems to be
> > > in libpcap via pcap-config:
> > >
> > > /usr/bin/ld: cannot find -lsystemd
> > > clang: error: linker command failed with exit code 1 (use -v to see
> > > invocation)
> > >
> > > LIBS='../libpcap/libpcap.a -lnl-genl-3 -lnl-3  -ldbus-1 -lpthread
> > > -lsystemd  '  
> >
> > Fixed in
> >
> > commit 588f0bb996230a84a8cf10ddf30cc514e3ba5a68 (HEAD -> master,
> [...]
>
> Thank you Guy.
>
> > This should only be an issue for programs that link statically with
> > libpcap (libpcap.a) but don't link completely statically.  I don't
> > know if anything does that other than tcpdump (from which this change
> > was taken) and tcpslice, if they're building with a libpcap.a from a
> > libpcap source and build tree in the same parent directory as the
> > tcpdump/tcpslice source and build tree.
>
> Is this semantics worth adding to pcap-config(1)?
>
> -- 
>     Denis Ovsienko
>
> --- End Message ---
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