[Skiboot] Minimum binutils version to build skiboot

[Oliver O'Halloran]

On Fri, Jul 31, 2020 at 1:11 AM Gustavo Romero
<gromero at linux.vnet.ibm.com> wrote:
>
> Hi Stewart!
>
> On 7/29/20 11:46 PM, Stewart Smith wrote:
> > On Wed, Jul 22, 2020, at 5:05 PM, Gustavo Romero wrote:
> >> I'm getting the following error when building skiboot with
> >> binutils 2.26.1 on Ubuntu 16.04.6 LTS:
> >
> > Generally we've had CI for the current Ubuntu LTS plus the previous Ubuntu LTS.
> >
> > e126deb2de831d559c49a8c3b0f4edd1b1291bb0 in June added in 20.04 and dropped 16.04, so you can probably bisect back to work what broke it, or look at how it was being built back then and figure out what you're doing differently.
>
> Got it, so 16.04 was dropped by the CI.
>
> Interestingly the commit that broke the build on old
> binutils is from a couple of weeks before the support
> for 16.04 was dropped by the CI (so not sure how the
> CI didn't catch it):

Travis was always pretty flakey until recently so I never paid much
attention to it. That and considering 16.04 is pretty long in the
tooth I figured we might as well drop it rather than trying to make it
work again.