# emerge world -uDNav --with-bdeps=y

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  r  U  ] dev-lang/perl-5.18.2-r1:0/5.18 [5.16.1:0/0] USE="berkdb gdbm -debug -doc -ithreads" 13,746 kB
[ebuild  rR    ] perl-core/Digest-SHA-5.850.0  USE="{-test}" 42 kB
[ebuild  rR    ] perl-core/Scalar-List-Utils-1.350.0  73 kB
[ebuild  rR    ] dev-perl/libintl-perl-1.230.0  512 kB
[ebuild     U  ] virtual/perl-ExtUtils-CBuilder-0.280.210 [0.280.205] 0 kB
[ebuild  rR    ] perl-core/Encode-2.550.0  0 kB
[ebuild  rR    ] dev-perl/TimeDate-2.300.0  0 kB
[ebuild  rR    ] perl-core/version-0.990.800  0 kB
[ebuild  rR    ] dev-perl/Socket6-0.250.0  0 kB
[ebuild  rR    ] perl-core/File-Temp-0.230.400  59 kB
[ebuild  rR    ] dev-perl/Net-Daemon-0.480.0-r1  0 kB
[ebuild  rR    ] dev-perl/SGMLSpm-1.03-r7  92 kB
[ebuild  rR    ] perl-core/Test-Harness-3.290.0  292 kB
[ebuild     U  ] virtual/perl-Perl-OSType-1.3.0-r1 [1.2.0-r1] 0 kB
[ebuild     U  ] virtual/perl-ExtUtils-Install-1.590.0-r1 [1.580.0-r1] 0 kB
[ebuild  rR    ] dev-perl/BerkeleyDB-0.540.0  USE="{-test}" 0 kB
[ebuild  rR    ] perl-core/Digest-MD5-2.530.0  47 kB
[ebuild  rR    ] perl-core/Getopt-Long-2.420.0  0 kB
[ebuild  rR    ] dev-perl/Term-ReadLine-Perl-1.30.300-r1  0 kB
[ebuild  rR    ] dev-perl/Archive-Zip-1.370.0  0 kB
[ebuild  rR    ] dev-perl/PlRPC-0.202.0-r2  0 kB
[ebuild  rR    ] perl-core/IO-Compress-2.60.0  238 kB
[ebuild  rR    ] dev-perl/WWW-RobotRules-6.20.0  0 kB
[ebuild  rR    ] dev-perl/DBI-1.628.0  USE="{-test}" 0 kB
[ebuild  rR    ] perl-core/Archive-Tar-1.920.0  USE="{-test}" 58 kB
[ebuild  rR    ] dev-perl/IO-Socket-INET6-2.720.0  0 kB
[ebuild  rR    ] dev-perl/IO-HTML-1.00.0  USE="{-test}" 0 kB
[ebuild  rR    ] dev-perl/IO-Socket-IP-0.280.0  USE="{-test}" 0 kB
[ebuild  rR    ] dev-perl/DateManip-6.430.0  USE="{-test}" 0 kB
[ebuild  rR    ] dev-perl/Tie-IxHash-1.230.0  USE="{-test}" 0 kB
[ebuild  rR    ] dev-perl/HTTP-Negotiate-6.0.1-r1  0 kB
[ebuild  rR    ] dev-perl/HTTP-Cookies-6.0.1-r1  0 kB
[ebuild  rR    ] dev-perl/Net-SSLeay-1.640.0  0 kB
[ebuild  rR    ] dev-perl/IO-Socket-SSL-1.967.0  USE="-idn" 95 kB
[ebuild  rR    ] dev-perl/Mail-DKIM-0.400.0  0 kB
[ebuild     U  ] app-admin/eselect-opencl-1.1.0-r3 [1.1.0-r2] 0 kB
[ebuild  rR    ] net-analyzer/net-snmp-5.7.3_pre3  USE="X bzip2 ipv6 python ssl tcpd zlib -doc -elf -lm_sensors -mfd-rewrites -minimal -mysql -netlink -pci -perl -rpm (-selinux) -ucd-compat" PYTHON_SINGLE_TARGET="python2_7 (-python2_6%)" PYTHON_TARGETS="python2_7 (-python2_6%)" 0 kB
[ebuild     U  ] app-text/iso-codes-3.55 [3.54] LINGUAS="-af -am -ar -as -ast -az -be -bg -bn -bn_IN -br -bs -byn -ca -crh -cs -cy -da -de -dz -el -en -eo -es -et -eu -fa -fi -fo -fr -ga -gez -gl -gu -haw -he -hi -hr -hu -hy -ia -id -is -it -ja -ka -kk -km -kn -ko -kok -ku -lt -lv -mi -mk -ml -mn -mr -ms -mt -nb -ne -nl -nn -nso -oc -or -pa -pl -ps -pt -pt_BR -ro -ru -rw -si -sk -sl -so -sq -sr -sr@latin -sv -sw -ta -te -th -ti -tig -tk -tl -tr -tt -tt@iqtelif -ug -uk -ve -vi -wa -wal -wo -xh -zh_CN -zh_HK -zh_TW -zu" 3,682 kB
[ebuild  rR    ] dev-perl/File-MimeInfo-0.210.0  USE="{-test}" 0 kB
[ebuild     U  ] sys-libs/tdb-1.2.13-r1 [1.2.13] USE="python" PYTHON_SINGLE_TARGET="python2_7 (-python2_6%)" PYTHON_TARGETS="python2_7 (-python2_6%)" 0 kB
[ebuild  rR    ] dev-vcs/git-2.0.0-r2  USE="blksha1 curl gnome-keyring gpg gtk iconv nls pcre perl python threads webdav -cgi -cvs -doc -emacs -highlight -mediawiki (-ppcsha1) -subversion {-test} -tk -xinetd" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7" 0 kB
[ebuild     U  ] virtual/perl-IO-1.280.0-r1 [1.25] 0 kB
[uninstall     ] perl-core/IO-1.25 
[blocks b      ] <perl-core/IO-1.280.0 ("<perl-core/IO-1.280.0" is blocking virtual/perl-IO-1.280.0-r1)
[ebuild  rR    ] dev-perl/Net-HTTP-6.60.0  0 kB
[ebuild  rR    ] dev-perl/libwww-perl-6.50.0  USE="ssl" 0 kB
[ebuild  rR    ] dev-perl/LWP-Protocol-https-6.40.0  0 kB
[ebuild  rR    ] dev-perl/MIME-tools-5.504.0  USE="{-test}" 0 kB

Total: 46 packages (8 upgrades, 38 reinstalls, 1 uninstall), Size of downloads: 18,930 kB
Conflict: 1 block