On Tuesday 27 October 2015 08:45:26 Burton, Ross wrote:
> On 26 October 2015 at 20:16, Todd Efflam <todd.eff...@gmail.com> wrote:
> > Thanks for the tip. We tried adding this to the local.conf file but
> > it failed with the following error:
> > ERROR: Nothing PROVIDES 'glibc'
> > ERROR: glibc was skipped: missing required distro feature 'ipv6' (not
> > in DISTRO_FEATURES)
>
> Ouch. That's surely not right.
>
> The commit that introduced this was:
>
> commit 97899bc908a421295d814801ff86edeb9304d2fd
> Author: Chen Qi <qi.c...@windriver.com>
> Date: Thu Jul 3 11:23:42 2014 +0800
>
> eglibc: check for required distro features
>
> If users accidently override the DISTRO_FEATURES in local.conf,
> then build failures occur for lack of libc functions.
>
> All features in DISTRO_FEATURES_LIBC should be in DISTRO_FEATURES.
> That's why this patch let the recipe inherit distro_features_check
> class and set REQUIRED_DISTRO_FEATURES to "${DISTRO_FEATURES_LIBC}".
>
> [YOCTO #6381]
>
> But the entire point of the logic in glibc-options is to make these
> options, well, optional.
>
> It looks like the required_distro_features use in eglibc is misguided. Can
> you comment out the REQUIRED_DISTRO_FEATURES assignment in glibc.inc and
> verify that it then builds fine without ipv6 enabled?
Ah yes, I meant to get back to this at some point as I didn't really like how
this was fixed previously either (see
https://bugzilla.yoctoproject.org/show_bug.cgi?id=6381 for details of the
problem). It seems to me that we should:
1) Fix the glibc recipes so that they handle an empty libc configuration or
error out much earlier with a sensible message if that's not possible
2) Properly detect when DISTRO_FEATURES has been "zapped" via += in local.conf
or elsewhere and show an error/warning about that.
Cheers,
Paul
--
Paul Eggleton
Intel Open Source Technology Centre
--
_______________________________________________
yocto mailing list
yocto@yoctoproject.org
https://lists.yoctoproject.org/listinfo/yocto
