tcpdump mailing list archives
Re: build failures on Solaris
From: Denis Ovsienko via tcpdump-workers <tcpdump-workers () lists tcpdump org>
Date: Wed, 29 Sep 2021 18:05:09 +0100
--- Begin Message --- From: Denis Ovsienko <denis () ovsienko info>
Date: Wed, 29 Sep 2021 18:05:09 +0100
On Sun, 1 Aug 2021 19:19:14 -0700 Guy Harris <gharris () sonic net> wrote:At this point, I'm seeing two problems: 1) The pcap-config and libpcap.pc that we generate always include a -L flag, even if the directory is a system include directory, which means that it could be wrong in a system with 32-bit and 64-bit libraries in separate directories. Debian removes that from pcap-config to avoid that problem. We shouldn't add -L in that case. 2) Tcpdump needs to work around that when configuring. The first is definitely our bug, given that Debian is working around it. The second would be helpful; we already work around Apple screwing up pcap-config by having the one they ship with macOS include -L/usr/local/lib for no good reason.For posterity, trying to CI the tcpdump-4.99 branch on illumos-amd64 made it apparent that the same problem used to apply to illumos: ld: fatal: file /usr/lib/libpcap.so: wrong ELF class: ELFCLASS32 $ find /usr/ -name pcap-config /usr/bin/pcap-config /usr/bin/amd64/pcap-config $ /usr/bin/pcap-config --libs -L/usr/lib -lpcap $ /usr/bin/amd64/pcap-config --libs -L/usr/lib/amd64 -Wl,-R,/usr/lib/amd64 -lpcap This broke a number of tests, such as: -- Looking for pcap_open -- Looking for pcap_open - not found Consequently, several HAVE_xxxxx macros were erroneously unset, so tcpdump compiled its own substitute pcap_xxxxx functions and eventually clashed trying to link with libpcap. Cherry-picking a series of intertwined build system fixes from the master branch, including commit c39d40a ("On Solaris, for 64-bit builds, use the 64-bit pcap-config."), was sufficient to fix this. -- Denis Ovsienko
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Current thread:
- Re: build failures on Solaris, (continued)
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- Re: build failures on Solaris Guy Harris via tcpdump-workers (Aug 01)
- Re: build failures on Solaris Denis Ovsienko via tcpdump-workers (Aug 02)
- Re: build failures on Solaris Dagobert Michelsen via tcpdump-workers (Aug 03)
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- Re: build failures on Solaris Guy Harris via tcpdump-workers (Aug 03)
- Re: build failures on Solaris Denis Ovsienko via tcpdump-workers (Aug 08)
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- Re: build failures on Solaris Guy Harris via tcpdump-workers (Aug 08)
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- Re: build failures on Solaris Denis Ovsienko via tcpdump-workers (Aug 08)
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- Re: build failures on Solaris Denis Ovsienko via tcpdump-workers (Sep 29)
- Re: build failures on Solaris Denis Ovsienko via tcpdump-workers (Sep 29)