[Pkg-dpdk-devel] Bug#966921: Fwd: OVS cannot find DPDK

[Thomas Goirand]

Forwarding our private conversation to the BTS (I hope none will mind, I
don't see anything private that shouldn't be public in the tracker here...)

Cheers,

Thomas Goirand (zigo)

-------- Forwarded Message --------
Subject: Re: [Pkg-dpdk-devel] OVS cannot find DPDK
Date: Tue, 1 Sep 2020 14:43:29 +0200
From: Christian Ehrhardt <christian.ehrhardt at canonical.com>
To: Luca Boccassi <bluca at debian.org>
CC: Thomas Goirand <zigo at debian.org>, Debian DPDK Maintainers
<pkg-dpdk-devel at lists.alioth.debian.org>

(2) comes down to breakage in DPDK 19.11.4 linking.
I've reported that at:
http://mails.dpdk.org/archives/stable/2020-September/024796.html
and Luca will take care of that.

Back to the OVS config problem, I've reproduced and found that it is
indeed toolchain related (affects old and new versions of OVS).
It seems it is indeed a problem in libdpdk-dev

$ cat /usr/lib/x86_64-linux-gnu/pkgconfig/libdpdk.pc
[...]
Libs: -L${libdir} [...] -lnuma -lpcap -lIPSec_MB
/usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libfdt.so

The above path shouldn't be there as-is.
It should not be versioned to ...-gnu/9/../ which is what fails now
that we are on gcc-10.

I need to look if I can find where exactly this comes from ...