[Buildroot] [PATCH 08/30] jpeg: convert to a real package

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Dear Samuel Martin,

On Thu, 28 Feb 2013 23:13:03 +0100, Samuel Martin wrote:

> > Instead to implement such a make target manually, make jpeg a normal
> > generic-package, except that it doesn't have any source.
> Nice, it also prevents from fault positive match (about the
> infrastructure) in the autobuilder stats :)

Yes, the point is that by re-using the package infrastructure, we are
much cleaner in terms of integration with the download stuff, the
licensing feature and so on.

> > diff --git a/package/jpeg/jpeg.mk b/package/jpeg/jpeg.mk
> > index 3caacaa..962908d 100644
> > --- a/package/jpeg/jpeg.mk
> > +++ b/package/jpeg/jpeg.mk
> > @@ -1,10 +1,24 @@
> >  #############################################################
> >  #
> > -# jpeg
> > +# Virtual jpeg package
> >  #
> >  #############################################################
> >
> > -jpeg: $(if $(BR2_PACKAGE_JPEG_TURBO),jpeg-turbo,libjpeg)
> > +JPEG_SOURCE =
> >
> > -host-jpeg: host-libjpeg
> Does this change break few packages?
> AFAICS, libeet and libevas seem depend on host-jpeg.

Looks like I miss a $(eval $(host-generic-package)) at the end of the
file, and maybe a few more things. I'll look into this. Good point,
thanks for raising it!

> A bit off-topic: this is the first virtual package, it'd be good to
> have a clean and known way of handling virtual packages.

Yes. I would maybe wait that we have a few of them to see what is the
real pattern between them, but then documenting it will definitely be
useful, of course.

Best regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com