Dirty package.use

[tsymiroro]

Hi,

When using funtoo, regularly doing update/upgrade,

sometimes I have messages about modifying /etc/portage/package.use.

At this time my package.use contain (too) many changes like this

Quote

# required by dev-lang/ruby-2.4.0::gentoo
# required by dev-ruby/rdoc-5.0.0-r3::gentoo[ruby_targets_ruby24]
# required by dev-lang/ruby-2.1.10::gentoo[rdoc]
# required by dev-ruby/kpeg-1.1.0::gentoo[ruby_targets_ruby21]
>=dev-ruby/test-unit-3.2.3 ruby_targets_ruby24

# required by x11-libs/qwtpolar-1.1.1-r1::gentoo[qt4]
# required by sci-geosciences/qgis-2.18.3-r1::gentoo
>=x11-libs/qwt-6.1.3-r1 qt4 designer

# required by app-office/libreoffice-5.4.2.2::kde-kit
# required by app-office/libreoffice (argument)
>=dev-libs/xmlsec-1.2.24-r1 nss

 

The question is:

How to know when it is the time to remove the lines (the forced change)?

 

[Oleg Vinichenko]

this is not intuitive to users, the time you can remove the uses can be the time those uses are no longer present in ebuilds or you don't need them. the first case can be determined when portage will give you a following message during emerge -auDN 

app-foo/bar (-use%), that means this use is no longer present (removed)

personally i trying to avoid using package.use too much and rely on what is enabled by default in profiles.

[tsymiroro]

modifying package.use, or package.accept_keyword, are not a choice.

In some cases, portage complain about to apply these change before upgrading can be done.

Thanks for answer