How can I override global OPTIONS_UNSET for specific port in make.conf? www/xcache

[Miroslav Lachman]

Marco Steinbach wrote:
> Marco Steinbach wrote on 20.06.2014 02:06:
>> Marco Steinbach wrote on 19.06.2014 23:49:
>>> Miroslav Lachman schrieb:
>>>> I don't need DOCS, EXAMPLES etc. for each port as I normaly do not
>>>> use them on servers.
>>>> I have this line in make.conf
>>>>
>>>> OPTIONS_UNSET= X11 GUI CUPS DOCS EXAMPLES NLS
>>>>
>>>> Now I need www/xcache port installed with EXAMPLES.
>>>> I tried following in make.conf:
>>>>
>>>> xcache_SET= EXAMPLES
>>>>
>>>> or
>>>>
>>>> xcache_SET_FORCE= EXAMPLES
>>>>
>>>> In both cases, xcache is installed without EXAMPLES.
>>>>
>>>> So how can I have globally disabled EXAMPLES and enable it only for
>>>> one specific port?
>>>
>>> After some testing, I think this could be a bug in the handling of
>>> PORTEXAMPLES / PORTDOCS, since flipping EXAMPLES / DOCS options (and
>>> any other options I tried) with these switches works as expected.
>>>
>>> I'll try and have a go at this.
>>>
>>
>> [...]
>>
>> If a port does not explicitly define an option for a feature in its
>> Makefile, then a port specific setting for that option has no effect,
>> since it simply doesn't match against the options defined in the ports
>> Makefile.
>>
>> IOW: If a port does not explicity define an EXAMPLES option, then a
>> port specific SET or UNSET for the EXAMPLES option in /etc/make.conf
>> has no effect.
>>
>> Consequently, in the case of www/xcache, simply adding a dummy EXAMPLE
>> option to OPTIONS_DEFINE makes xcache_SET_FORCE=EXAMPLES work as
>> expected: It installs examples, overriding OPTIONS_UNSET_FORCE.
>>
>>
>> Depending on ones point of view, one could say, that this works as
>> advertised. But it's confusing and robs us of port specific _FORCE
>> flags in certain cases.
>>
>> One possible solution could be, to have Mk/bsd.options.mk detect the
>> use of PORTEXAMPLES and PORTDOCS in a port, and then silently
>> translate these into DOCS / EXAMPLES options (adding them to
>> ${COMPLETE_OPTIONS_LIST}), if they're not present.
>>
>> Without them popping up in a dialog, since that would be the
>> maintainers domain, and without persisting them, of course.
>>
>> I'm still trying to wrap my head around these parts of the ports
>> system, though, in order to not accidentially break things.
>>
>> MfG CoCo
>> PS: I'm taking bapt@ out of the loop again, until we're either
>> completely stuck or are able to produce a patch.
>>
>>
>
> I think I found a more simple way to do this. Could you please try the
> attached patch ?

I can confirm the success. Tested on FreeBSD 9.3-RC1.
With your patch and following lines in make.conf

OPTIONS_UNSET= X11 GUI CUPS DOCS EXAMPLES NLS
xcache_SET= EXAMPLES

examples are installed for xcache port.

Thank you very much!

I hope it will be accepted by ports mgr and committed soon.

Miroslav Lachman