$ emerge -tuD world
These are the packages that I would merge, in reverse order:
Calculating world dependencies ..... ..... . ...done!
[blocks B ] app-text/poppler (is blocking app-text/pdftohtml-0.36-r4)
[nomerge ] app-cdr/k3b-0.12.8
[nomerge ] media-video/transcode-0.6.14-r3
[nomerge ] media-libs/netpbm-10.30-r1
[ebuild U ] media-libs/jbigkit-1.6-r1 [1.4]
[ebuild U ] sys-process/psmisc-21.9 [21.6]
[nomerge ] net-zope/plone-2.1
[nomerge ] net-zope/archetypes-1.3.4
[nomerge ] net-zope/portaltransforms-1.3.7
[ebuild N ] app-text/pdftohtml-0.36-r4
[nomerge ] net-fs/samba-3.0.14a-r2
[nomerge ] dev-libs/popt-1.7-r1
[ebuild N ] net-print/cups-1.1.23-r7
[ebuild N ] app-text/poppler-0.4.3-r4
$ emerge -Dvup
These are the packages that I would merge, in order:
Calculating world dependencies ..... ..... . ...done!
[blocks B ] app-text/poppler (is blocking app-text/pdftohtml-0.36-r4)
[ebuild N ] app-text/poppler-0.4.3-r4 -cairo +jpeg +zlib 0 kB
[ebuild N ] net-print/cups-1.1.23-r7 +cjk -gnutls +nls +pam +samba +slp +ssl 0 kB
[ebuild N ] app-text/pdftohtml-0.36-r4 0 kB
[ebuild U ] sys-process/psmisc-21.9 [21.6] +ipv6 +nls (-selinux) 0 kB
[ebuild U ] media-libs/jbigkit-1.6-r1 [1.4] 0 kB
Total size of downloads: 0 kB