Auto-variants

[Joshua Root]

On 2011-8-8 17:58 , Rainer Müller wrote:
> On 2011-08-08 09:44 , Clemens Lang wrote:
>> On Sun, Aug 07, 2011 at 10:28:48PM -0400, Arno Hautala wrote:
>>> Either all optional libraries should always be disabled and
>>> dependencies marked only as they are enabled, or this auto-variant
>>> behavior could be adapted. I think the GSOC project that would
>>> introduce "rev-upgrade" could be of use here. It could at least mark
>>> decencies after compilation has occurred.
>>
>> It currently does not do that, but will detect broken binaries and
>> rebuild the port (in this case without the auto-variant enabled).
>> Recording actual dependencies (or warning if they don't match those
>> specified in the Portfile) might be part of Felipe's "destroot-test
>> phase" project, I think.
> 
> Yes, the post-destroot-check is intended to find this kind of hidden
> dependencies and report them. Introducing dependencies automatically
> without manual interaction isn't really possible as it requires changes
> to the Portfile which might be too complex for an automated task to
> succeed. So this should be left to the maintainer.

There's also trace mode which will prevent non-dependencies from being used.

- Josh