[Buildroot] [PATCH] docs/manual: gcc 4.4 is the lowest we are known to work with

Matthew Weber matthew.weber at rockwellcollins.com
Thu Aug 9 13:41:57 UTC 2018


Baruch,
On Thu, Aug 9, 2018 at 8:15 AM Baruch Siach <baruch at tkos.co.il> wrote:
>
> Hi Matt,
>
> Matthew Weber writes:
> > On Sun, Aug 5, 2018 at 6:46 AM Yann E. MORIN <yann.morin.1998 at free.fr> wrote:
> >>
> >> gcc-2.95 is old. No, it is not old; it is antediluvian.
> >>
> >> The odlest gcc version we are testing against is gcc-4.4 (on Holiss'
> >> autobuilder using RHEL6.5).
> >>
> >
> > Any suggestions if we keep the minimum host compiler requirement at
> > 4.4, how should I address the below build failures with "error:
> > '__ATOMIC_ACQUIRE' undeclared " on the RHEL6.5 autobuilder?
> > http://autobuild.buildroot.net/?reason=host-libselinux-2.7
> >
> > If this was a more recent compiler version issue, I'd dig into the
> > package and look at up-streaming a compatibility ifdef check.
>
> The atomic operations were introduced in gcc version 4.7:
>
>   https://gcc.gnu.org/gcc-4.7/changes.html
>

Yeah.



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