Re: [tcpdump-workers] upcoming tcpslice release
--- Begin Message --- On Sat, 15 Oct 2022 15:21:42 -0700 Guy Harris wrote: > On Oct 15, 2022, at 8:03 AM, Denis Ovsienko via tcpdump-workers > 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 --- ___ tcpdump-workers mailing list tcpdump-workers@lists.tcpdump.org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
Re: [tcpdump-workers] upcoming tcpslice release
--- Begin Message --- On Oct 15, 2022, at 8:03 AM, Denis Ovsienko via tcpdump-workers 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, origin/HEAD) Author: Guy Harris 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 tcpdump-workers@lists.tcpdump.org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
Re: [tcpdump-workers] upcoming tcpslice release
--- Begin Message --- 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 ' With earlier snapshots of libpcap the problem does not happen. I tried to bisect libpcap, but without much success. For now I tend to see it as a libpcap issue that should not block tcpslice release, but other opinions are welcome. -- Denis Ovsienko --- End Message --- ___ tcpdump-workers mailing list tcpdump-workers@lists.tcpdump.org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
[tcpdump-workers] upcoming tcpslice release
--- Begin Message --- Hello list. Unless anyone objects, the next release of tcpslice (1.6) will be made soonish to flush the few buffered minor bugfixes and to take another item off my to-do list. -- Denis Ovsienko --- End Message --- ___ tcpdump-workers mailing list tcpdump-workers@lists.tcpdump.org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
