if I enter: sudo emerge himerge --verb --deep
I have: [ebuild U ] dev-lang/python-2.5.2-r7 [2.5.2-r6] USE="berkdb gdbm ipv6 ncurses readline ssl threads -bootstrap -build -doc -examples -sqlite -tk -ucs2 -wininst" 28 kB
[ebuild U ] x11-libs/xtrans-1.2.1 [1.0.3] USE="-debug" 105 kB
[ebuild U ] x11-proto/renderproto-0.9.3 [0.9.2] 53 kB
[ebuild U ] x11-libs/libdrm-2.3.1 [2.3.0] USE="-debug" 404 kB
[ebuild N ] x11-proto/xf86driproto-2.0.3 0 kB
[ebuild N ] x11-proto/dri2proto-1.1 40 kB
[ebuild N ] x11-misc/makedepend-1.0.1 USE="-debug" 106 kB
[ebuild U ] x11-libs/libXrender-0.9.4 [0.9.2] USE="-debug" 222 kB
[ebuild U ] media-libs/mesa-7.1_rc3 [6.5.2-r1] USE="nptl -debug -doc -motif -pic -xcb" VIDEO_CARDS="-i810* -mach64* -mga* -none -r128* -radeon* -s3virge -savage* -sis* (-sunffb) -tdfx* -trident* -via*" 4,423 kB
[ebuild U ] x11-libs/cairo-1.6.4-r1 [1.6.4] USE="X opengl svg -debug -directfb -doc -glitz -test -xcb" 0 kB
./etc/portage/color.map
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What does U, N mean ?


