[OE-core] [PATCH v3] python3: make readline and gdbm support conditional.

[Burton, Ross]

On 9 June 2017 at 08:43, Ismo Puustinen <ismo.puustinen at intel.com> wrote:

> +# If readline is not there, don't create python3-readline package and
> +# also do not depend on it. Same goes for gdbm.
> +PACKAGES_remove = " \
> +    ${@bb.utils.contains('PACKAGECONFIG', 'readline', '',
> '${PN}-readline', d)} \
> +    ${@bb.utils.contains('PACKAGECONFIG', 'gdbm', '', '${PN}-gdbm', d)} \
> +"
> +PROVIDES_remove = " \
> +    ${@bb.utils.contains('PACKAGECONFIG', 'readline', '',
> '${PN}-readline', d)} \
> +    ${@bb.utils.contains('PACKAGECONFIG', 'gdbm', '', '${PN}-gdbm', d)} \
> +"
> +RDEPENDS_${PN}-modules_remove = " \
> +    ${@bb.utils.contains('PACKAGECONFIG', 'readline', '',
> '${PN}-readline', d)} \
> +    ${@bb.utils.contains('PACKAGECONFIG', 'gdbm', '', '${PN}-gdbm', d)} \
> +"
>

Just looked at what happens to the packaging without these lines.

If gdbm isn't present then the gdbm package isn't generated at all, which
is as expected.  python3-readline just contains the rlcompleter package
which is basically an implementation detail and could arguably be deleted
in a do_install_append that checks the PACKAGECONFIG.

The provides/depends will be needed still though, unless we teach the
manifest generator that some packages depend on PACKAGECONFIG flags.

Ross
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