[Buildroot] [PATCH 1/2] package/gettext: Turn into virtual package

[Vadim Kochan <vadim4j@gmail.com>]

Hi Thomas, All

On Mon, Dec 31, 2018 at 5:06 PM Thomas Petazzoni
<thomas.petazzoni@bootlin.com> wrote:
>
> Hello Vadim,
>
> On Mon, 31 Dec 2018 06:03:30 +0200, Vadim Kochan wrote:
>
> > > I'm not convinced by how this virtual package is handled in Config.in.
> > > In fact, if you apply both of your patches, it's broken, you have:
> > >
> > > config BR2_PACKAGE_PROVIDES_HOST_GETTEXT
> > >         string
> > >         default "host-gettext-gnu" if BR2_PACKAGE_GETTEXT_GNU
> > >         default "host-gettext-tiny" if BR2_PACKAGE_GETTEXT_TINY
> > >
> > So looks like it needs to be enabled by default "host-gettext-gnu" but should
> > allow to set "host-gettext-tiny" if BR2_PACKAGE_GETTEXT_TINY was forced
> > by the user ?
>
> No, I don't think that's what we want. Is there any reason to use
> host-gettext-gnu, unless BR2_SYSTEM_ENABLE_NLS is enabled ?
>
> If not, then I think we should:
>
>         default "host-gettext-gnu" if BR2_SYSTEM_ENABLE_NLS
>         default "host-gettext-tiny" if !BR2_SYSTEM_ENABLE_NLS
>
> > May be I don;t have a view of a whole picture, but for me it looks simple -
> > by default gettext-gnu is selected when ENABLE_NLS is set, but
> > gettext-tiny should
> > be selected by force choosing the BR2_PACKAGE_GETTEXT_TINY
>
> We don't need BR2_PACKAGE_GETTEXT_TINY at all. Just make the virtual
> package behave properly, using gettext-gnu as the provider when
> BR2_SYSTEM_ENABLE_NLS=y, and using gettext-tiny as the provider when
> BR2_SYSTEM_ENABLE_NLS is not enabled.
>
> >. For the "host"
> > case - the similar case with the only difference that "tiny" might be
> > selected if NLS is disabled.
>
> Why would one want to use the full gettext when NLS is disabled ? When
> NLS is disabled, you don't care about message translations, so the
> dummy implementation provided by gettext-tiny should be enough.
>
> However: this is a massive change in Buildroot. Most people are
> building with BR2_SYSTEM_ENABLE_NLS disabled (that's our default), so
> such a change will mean that everybody will switch from one day to the
> other from gettext-gnu to gettext-tiny.
>
> Best regards,
>
> Thomas
> --
> Thomas Petazzoni, CTO, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com

Why do we need default host-gettext dependencies for such packages
like wine, flex
if they builds successfully (I tried uclibc, musl) if to manually
remove such dependency
from their *.mk files ?

Regards,
Vadim Kochan