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