[Buildroot] [PATCH 04/13 v2] core/legal-info: ensure legal-info works in off-line mode

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

Arnout, All,

On 2015-12-18 23:11 +0100, Yann E. MORIN spake thusly:
> On 2015-12-17 00:19 +0100, Arnout Vandecappelle spake thusly:
> > On 13-12-15 19:35, Yann E. MORIN wrote:
[--SNIP--]
> > >   - second, we add a new rule, $(1)-legal-source which only
> > >     $(1)-all-source depends on, so that we only download it for a
> > >     top-level 'make source', not as part of the standard download
> > >     mechanism (i.e. only what is really needed to build).
> > > 
> > > This way, we can do a complete [0] off-line build and are still able to
> > > generate legal-info, while at the same time we do not incur any download
> > > overhead during a simple build.
> > > 
> > > Also, we previously downloaded the _ACTUAL_SOURCE_TARBALL when it was
> > > not empty. 
> > 
> >  I haven't tested, but according to me this code already did the right thing:
> > 
> > ifneq ($$($(2)_ACTUAL_SOURCE_TARBALL),$$($(2)_SOURCE))
> >     $$(call DOWNLOAD,$$($(2)_ACTUAL_SOURCE_SITE)/$$($(2)_ACTUAL_SOURCE_TARBALL))
> > endif
> > 
> >  It is true, however, that the original code didn't handle the case where a
> > package explicitly declares ACTUAL_SOURCE_TARBALL to be empty.
> 
> Yes, everything was downloaded, even missing pieces.

Hmmm... I did not answer your question. I'm off-topic... OK, so now for
the real answer to your real question:

s/not empty/not equal to the _SOURCE/

But I'll improve the commit log in this respect.

Regards,
Yann E. MORIN.

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