[dpdk-dev] Building DPDK Libraries with Libtool

[dpdk-dev] Building DPDK Libraries with Libtool

[Stokes, Ian]

Hi,

I have been using DPDK with Openvswitch. The latest release of Openvswitch has started to use Libtools to build it's own internal libraries. Previous to this I built DPDK using DPDKs Makefiles and linked against the required DPDK libraries in the Openvswitch Makefiles. However because of the Libtools change over we now receive the warnings like the following

*** Warning: Linking the shared library lib/libopenvswitch.la against the
*** static library /home/tester/rte/x86_64-ivshmem-linuxapp-gcc/lib/librte_mbuf.a is not portable!

For all the DPDK libraries we link against. Doing some research on this warning leads me to believe it is related to how Libtool interacts with static libraries that it has not built and the recommended solution seems to be use Libtool to build those libraries as well (In this case the DPDK libraries). Ideally I'd like to avoid this.

Has anyone linked DPDK static libraries to libtool libraries before and if so was it a case that DPDK had to be built with Libtool?

Regards
Ian
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Re: [dpdk-dev] Building DPDK Libraries with Libtool

[Thomas Monjalon]

Hi,

2014-07-03 08:30, Stokes, Ian:
> I have been using DPDK with Openvswitch. The latest release of Openvswitch
> has started to use Libtools to build it's own internal libraries. Previous
> to this I built DPDK using DPDKs Makefiles and linked against the required
> DPDK libraries in the Openvswitch Makefiles. However because of the
> Libtools change over we now receive the warnings like the following
> 
> *** Warning: Linking the shared library lib/libopenvswitch.la against the
> *** static library
> /home/tester/rte/x86_64-ivshmem-linuxapp-gcc/lib/librte_mbuf.a is not
> portable!

You can build some shared libraries instead of static ones.

> For all the DPDK libraries we link against. Doing some research on this
> warning leads me to believe it is related to how Libtool interacts with
> static libraries that it has not built and the recommended solution seems
> to be use Libtool to build those libraries as well (In this case the DPDK
> libraries). Ideally I'd like to avoid this.

We should generate pkgconfig files in order to be easily integrated in libtool 
applications.

PS: please remove the disclaimer in your email footer.

-- 
Thomas