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On 26/08/2014 12:00, Gevisz wrote: |
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> On Tue, 26 Aug 2014 10:42:01 +0100 |
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> Peter Humphrey <peter@××××××××××××.uk> wrote: |
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> |
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>> On Tuesday 26 August 2014 12:21:35 Gevisz wrote: |
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>>> I have just tried to upgrade my system (which I do almost every day) |
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>>> and found out that portage wants to install 6 new python packages |
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>>> that seem to be unnecessary because for example |
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>>> # equery depends dev-python/pyopenssl |
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>>> reports that no other package depends on this one. |
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>>> |
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>>> The same situation is with all the other python packages. |
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>>> |
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>>> # emerge --update --deep --with-bdeps=y --newuse --backtrack=60 |
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>>> --ask world |
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>> |
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>> It could be that "--with-bdeps=y" term. I took a long time to learn |
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>> that lesson, as old-timers may remember. |
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>> |
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>> What happens if you change y to n? |
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> |
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> In this case, the portage wants to update all the same "unnecessary" |
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> python packages and only decides not to update the eselect-ruby. |
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You've approached this in an inefficient way. |
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When portage gives an odd list of dependencies to be emerged (especially |
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if they are new indicated by [ebuild N ]), then always run emerge |
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with the -t option. This will display the same output in a tree view |
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showing you what pulls things in. This exactly answers the question you |
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asked. |
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Looking at emerge output without the -t option does not show this |
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information, so you don't know. |
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When a package is to be installed new (i.e. not an update) then "equery |
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depends" is pointless. That form of the command shows the dependencies |
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for *installed*packages*, so obviously can't show the deps for something |
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not installed yet. There are options to equery that make it search the |
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tree itself, not your vdb, but they are slo-o-o-ow. maan equery for details. |
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--with-bdeps=n omits eselect-ruby as it is a build depend for some |
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package. A build depend means you need it to build something not to run |
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it. Portage defaults to n on this to make things a little more efficient |
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and compile less stuff. In your case eselect-ruby will only be updated |
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when something else that needs it at build time is updated. Until then |
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you strictly speaking don't really need it to be updated |
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-- |
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Alan McKinnon |
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alan.mckinnon@×××××.com |
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