Re: [ptxdist] Question to BUILDTIME

[Denis OSTERLAND <denis.osterland@diehl.com>]

Hi Michael,

seems my mind tricked my.
Thanks for the explanation.

Regards Denis

Am Freitag, den 28.06.2019, 16:23 +0200 schrieb Michael Olbrich:
> Hi,
> 
> On Fri, Jun 28, 2019 at 08:14:09AM +0000, Denis OSTERLAND wrote:
> > 
> > Am Freitag, den 28.06.2019, 09:12 +0200 schrieb Michael Olbrich:
> > > 
> > > On Thu, Jun 27, 2019 at 01:25:50PM +0000, Denis OSTERLAND wrote:
> > > > 
> > > >  
> > > > select <pkg> if BUILDTIME
> > > >  
> > > > works only if <pkg> has no prompt, correct?
> > > No, 'if BUILDTIME' can be used with any package. It just means, that The
> > > packages will be ordered accordingly at build-time but no dependency will
> > > be added to the resulting .ipk File.
> > This was how I understand it two.
> > The last time I used this feature is to long ago, to be sure ;-)
> > With recent release (ptxdist-2019.06.0) the package gets installed until I remove prompt line.
> > 
> > I try to pin my problem down.
> > Where is the post processing which removes the dependencies with BUILDTIME?
> > I mean, in 'scripts/lib/ptxd_lib_dgen.sh' there is 'PTXDIST_DEP_TARGET="run" ptxd_kconfig_dep_all "${config[@]}"',
> > but the automatically selected package will stick if it has a prompt.
> I think I understand way you're trying to do.  Consider this example:
> 
> config FOO
> 	tristate
> 	select BAR if BUILDTIME
> 	prompt "foo"
> 
> If 'foo' is enabled, then so is 'bar'. This means both symbols are enabled
> in the ptxconfig. This also means that both packages will be in the default
> package ist for the rootfs. That cannot be changed.
> What 'if BUILDTIME' means is, that
> 1. The make dependencies are a bit more relaxed, which can improve the
>    build time.
> 2. There is no dependency for this in the ipkg. So you could remove the
>    package 'bar' at runtime without removing 'foo'.
> 
> Creating an image with 'foo' but without 'bar' is not easily done. I
> suppose you could create your own image with:
> 
> IMAGE_BLA_PKGS := $(filter-out bar,$(PTX_PACKAGES_INSTALL))
> 
> Regards,
> Michael
> 

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