[OE-core] [PATCH 3/3] binconfig.bbclass: fix multilib file conflicts

[Richard Purdie]

On Wed, 2014-04-09 at 14:41 +0800, Ming Liu wrote:
> On 04/08/2014 06:03 PM, Richard Purdie wrote:
> > On Tue, 2014-04-08 at 10:27 +0800, Ming Liu wrote:
> >> On 04/07/2014 07:36 PM, Richard Purdie wrote:
> >>> On Mon, 2014-04-07 at 19:27 +0800, Ming Liu wrote:
> >>>> In most cases binconfig files conflict among multilib packages, to avoid
> >>>> that, use update-alternatives link *-config from real path with a
> >>>> PACKAGE_ARCH suffix.
> >>>>
> >>>> Signed-off-by: Ming Liu <ming.liu at windriver.com>
> >>>> ---
> >>>>    meta/classes/binconfig.bbclass | 65 ++++++++++++++++++++++++++++++++++++------
> >>>>    1 file changed, 56 insertions(+), 9 deletions(-)
> >>> This isn't going in, its complex and supports a minority use case.
> >>> binconfig should be dying out, not being extended and shored up like
> >>> this.
> >>>
> >>> I'd also add this patch is buggy, its pure luck that update-alternatives
> >>> is available at rootfs generation time since its not in a visible
> >>> dependency.
> >>>
> >>> So going forward I'd like to see patches which simply delete binconfig
> >>> scripts. Where there isn't a .pc alternative we should be adding them
> >>> and pushing them upstream.
> >> Did you mean we'd better remove all *-config scripts, insteaded by
> >> providing .pc files, and send the changes to all upstreams providing and
> >> using *-config? That seems a huge work and we need co-operate with a lot
> >> of projects.
> > Basically, yes, that is what I mean. I might be wrong but I don't think
> > there are that many projects which don't ship .pc files now and just
> > have a binconfig as a backup.
> Yes, I also noticed that many of them are providing .pc files as well as 
> binconfig as a backup, so I think there must be reasons binconfig 
> remained in their projects, that might be for compliable considering,  
> so I am not sure they would like to remove them from their projects, but 
> I can try to ping them. Nevertheless, the conflicts still exist, we just 
> leave them here so far?

I'm thinking we should start deleting the -config files at do_install
time where we know a good .pc file exists and remove the binconfig
inherit. If this causes any problem in software using the package, we
should fix those to use pkgconfig.

Over time the conflicts will stop existing since the binconfig class
will not be used anywhere.

Cheers,

Richard