[PATCHv2] libunwind: update to 1.4.0

[Rosen Penev]

On Tue, Jul 28, 2020 at 10:13 PM Yousong Zhou <yszhou4tech at gmail.com> wrote:
>
> On Wed, 29 Jul 2020 at 11:56, Rosen Penev <rosenp at gmail.com> wrote:
> >
> > On Tue, Jul 28, 2020 at 6:57 PM Yousong Zhou <yszhou4tech at gmail.com> wrote:
> > >
> > > On Wed, 29 Jul 2020 at 04:29, Rosen Penev <rosenp at gmail.com> wrote:
> > > >
> > > > Cleanup Makefile for consistency with other ones.
> > > >
> > > > Remove PKG_SSP. It can be fixed with -lssp_nonshared.
> > > >
> > > > Add PKG_BUILD_PARALLEL for faster compilation.
> > > >
> > > > Add some alpine pathes to fix potential issues.
> > >
> > > This is just too vague and random.  What are those potential issues?
> > > Add some description patch description what's wrong and why we need
> > > them, to make it more clear in the future when we can get rid of them!
> > Sure.
> > >
> > > >
> > > > Backport GCC 10 patch to fix compilation.
> > > >
> > > > Remove the InstallDev section for ARC. libunwind does not support ARC
> > > > and fails to compile. It seems InstallDev ignores the !arc DEPENDS.
> > >
> > > Likely it's not caused by InstallDev, reasons given in
> > > https://github.com/openwrt/packages/pull/12959#issuecomment-665021413
> > I'm not talking about openvswitch. I'm talking about
> > https://downloads.openwrt.org/snapshots/faillogs/arc_archs/base/libunwind/compile.txt
> > >
>
> It was failing in the configure stage.  Unlikely InstallDev has
> anything to do with it.  More details?
InstallDev has everything to do with this. I fixed this issue with
liburcu in this way as well.

It was failing on the buildbots in the same way.
>
> Regards,
>                 yousong