[Buildroot] [RFCv3 07/15] package/pkg-generic: handle host-tar as an extract dependency

[Yann E. MORIN <yann.morin.1998@free.fr>]

Thomas, All,

On 2017-12-02 21:19 +0100, Thomas Petazzoni spake thusly:
> On Sat, 2 Dec 2017 16:06:06 +0100, Yann E. MORIN wrote:
> > > To achieve that, check-host-tar.mk fills in the  
> > s/$/ variable/
> ACK, will fix.
> 
> > > The BR2_TAR_HOST_DEPENDENCY is added to all packages, except host-tar
> > > itself (obviously) and host-skeleton, because we depend on
> > > host-skeleton to install host-tar properly in HOST_DIR.  
> > 
> > As we discussed on IRC, there is also the case for the tar filesystem,
> > which may require host-tar.
> > 
> > Granted, it is very very unlikely that we end up with no package that
> > require host-tar, but still...
> 
> Yes, I agree, the tar filesystem should depend on
> $(BR2_TAR_HOST_DEPENDENCY) as well. I'll fix that.
> 
> > > +ifeq ($(filter host-tar host-skeleton,$(1)),)
> > > +$(2)_EXTRACT_DEPENDENCIES += $(BR2_TAR_HOST_DEPENDENCY)
> > > +endif  
> > 
> > So, even packages that are available as a zip file will get the
> > dependency on host-tar?
> 
> Yes. Like host-xz/host-lzip, my series does not attempt to switch to
> more fine-grained dependencies, it only intends to move to proper
> package dependencies. Using more fine-grained dependencies is left for
> future work.
> 
> > >  ifeq (,$(call suitable-host-package,tar,$(TAR)))
> > > -DEPENDENCIES_HOST_PREREQ += host-tar
> > >  TAR = $(HOST_DIR)/bin/tar
> > > +BR2_TAR_HOST_DEPENDENCY += host-tar  
> > Why assign-append here, instead of simply assign?
> Good point, will fix.

Once the two minor issues are fixed:

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

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