Gentoo出现包冲突

Question

我正试图在我的Gentoo git服务器上安装git。命令"emerge vcs/git“返回以下结果：

 * IMPORTANT: 12 news items need reading for repository 'gentoo'.
 * Use eselect news read to view new items.


 * IMPORTANT: 5 config files in '/etc/portage' need updating.
 * See the CONFIGURATION FILES section of the emerge
 * man page to learn how to update config files.
Calculating dependencies... done!
[ebuild  N     ] perl-core/parent-0.228-r1
[ebuild  N     ] perl-core/Data-Dumper-2.154.0
[ebuild  N     ] virtual/perl-parent-0.228-r1
[ebuild  N     ] virtual/perl-Data-Dumper-2.154.0
[ebuild     U #] dev-lang/perl-5.20.2 [5.16.3] USE="-berkdb*"
[ebuild  N     ] dev-perl/Net-SMTP-SSL-1.10.0-r1
[ebuild  N     ] virtual/perl-if-0.60.300
[ebuild  N     ] virtual/perl-Exporter-5.710.0-r1
[ebuild  N     ] virtual/perl-Carp-1.330.100
[ebuild  N     ] perl-core/CGI-4.90.0  USE="{-test}"
[ebuild  N     ] virtual/perl-CGI-4.90.0
[ebuild  N     ] dev-perl/Error-0.170.210  USE="{-test}"
[ebuild  N     ] dev-vcs/git-2.3.1  USE="blksha1 cgi curl gpg iconv nls pcre perl python threads webdav -cvs -doc -emacs -gnome-keyring -gtk -highlight -mediawiki (-ppcsha1) -subversion {-test} -tk -xinetd" PYTHON_TARGETS="python2_7"

!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

dev-lang/perl:0

  (dev-lang/perl-5.16.3:0/5.16::gentoo, installed) pulled in by
    =dev-lang/perl-5.16* required by (virtual/perl-libnet-1.230.0:0/0::gentoo, installed)
    ^              ^^^^^                                                                                                   
    dev-lang/perl:0/5.16=[-build(-)] required by (perl-core/File-Temp-0.230.400-r1:0/0::gentoo, installed)
                 ^^^^^^^^                                                                                                  
    (and 12 more with the same problems)

  (dev-lang/perl-5.20.2:0/5.20::gentoo, ebuild scheduled for merge) pulled in by
    =dev-lang/perl-5.20* required by (virtual/perl-Carp-1.330.100:0/0::gentoo, ebuild scheduled for merge)
    ^              ^^^^^                                                                                                   
    (and 2 more with the same problem)


It may be possible to solve this problem by using package.mask to
prevent one of those packages from being selected. However, it is also
possible that conflicting dependencies exist such that they are
impossible to satisfy simultaneously.  If such a conflict exists in
the dependencies of two different packages, then those packages can
not be installed simultaneously. You may want to try a larger value of
the --backtrack option, such as --backtrack=30, in order to see if
that will solve this conflict automatically.

For more information, see MASKED PACKAGES section in the emerge man
page or refer to the Gentoo Handbook.

在此之后，我尝试“出现dev-lang/perl”，但它返回相同的错误。有小费吗？谢谢各位！

Answer 1

您需要阅读Gentoo Perl升级新闻条目。这里有很好的附加背景：http://dilfridge.blogspot.com/2014/08/perl-in-gentoo-upgrading-pains-perl.html