--- Begin Message ---
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, origin/master, 
Author: Guy Harris <ghar...@sonic.net>
Date:   Sat Oct 15 15:18:13 2022 -0700

    configure: use pcap-config --static-pcap-only if available.
    If we're linking with a libpcap in ../libpcap*, it's static, but we only
    need to link with the libraries on wich it immediately depends, we don't
    need to link with the libraries on which those libraries depend, etc..
    So, if ../libpcap*/pcap-config supports --static-pcap-only, use that.
    Regenerate configure script.

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.

--- End Message ---
tcpdump-workers mailing list

Reply via email to