Am Di., 12. Mai 2020 um 10:42 Uhr schrieb Damjan Marion <dmar...@me.com>:
> > > On 12 May 2020, at 10:10, Andreas Schultz <andreas.schu...@travelping.com> > wrote: > > > > Am Di., 12. Mai 2020 um 10:00 Uhr schrieb Damjan Marion via lists.fd.io > <dmarion=me....@lists.fd.io>: > >> >> >> >> > On 12 May 2020, at 03:40, Lijian Zhang <lijian.zh...@arm.com> wrote: >> > >> > >> >> -----Original Message----- >> >> From: Damjan Marion <dmar...@me.com> >> >> Sent: 2020年5月12日 0:46 >> >> To: Lijian Zhang <lijian.zh...@arm.com> >> >> Cc: vpp-dev <vpp-dev@lists.fd.io>; nd <n...@arm.com> >> >> Subject: Re: [vpp-dev] clang-9 >> >> >> >> >> >> Hi Lijian, >> >> >> >> If I got it right, neither gcc or clang available in ubuntu 18.04 LTS >> are able to >> >> produce N1 optimised binaries. correct? >> > Yes, that's right. Support for optimized compiling for N1 starts with >> gcc-9.2.0 and clang-10, which are not available in Ubuntu-18.04 yet. >> >> >> >> If yes, can we just add clang-10 from: https://apt.llvm.org to vpp >> build scripts? >> >> >> > Currently clang-10/clang-11 Aarch64 packages are not available at >> apt.llvm.org yet. Arm compiler team is working on getting AArch64 >> packages available at apt.llvm.org. It may take a couple of weeks. >> >> So let’s wait then. For people who wants to use N1 probably there is more >> sense in >> using ubuntu 20.04 anyway, and 20.04 is coming with clang10. >> > > Yeah, but Ubuntu 20.04 and Debian Sid are in the process of removing > python2 support and that creates a whole bunch of other problems. Removing > the python2 deb references from `make install-dep` is relatively simple, > but cleaning up the debian rules and control files without breaking support > for older Ubuntu and Debian releases is more complicated. > > > Can you explain what exactly is more complicated? > Debian Sid has completely removed python2, but the debs still depend on them. Making this more flexible requires some creative changes to the rules files. We have worked around that [1],[2] by removing the python2 dependencies, but that would probably break builds on older Debian/Ubuntu versions. [1]: https://github.com/travelping/vpp/commit/77acccae792180f0ae94058a3b1ca7db0f995dd0 [2]: https://github.com/travelping/vpp/commit/7d52fd387b4c8a3a2f33c27f031b283d260301f2 -- Andreas Schultz
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