tenor ~ # emerge -pvt mplayer

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

Calculating dependencies... done!
[ebuild  N    ] media-video/mplayer-1.0_rc2_pre20070321-r4  USE="X alsa arts dvd encode esd gif gtk iconv ipv6 jpeg mad mp3 opengl png quicktime sdl unicode vorbis win32codecs xv -3dnow -3dnowext -a52 -aac -aalib (-altivec) -amr -bidi -bindist -bl -cddb -cdparanoia -cpudetection -custom-cflags -debug -dga -directfb -doc -dts -dv -dvb -dvdnav -dvdread -enca -fbcon -ftp -ggi -ivtv -jack -joystick -libcaca -lirc -live -livecd -lzo -md5sum -mmx -mmxext -mp2 -musepack -nas -openal -oss -pnm -radio -rar -real -rtc -samba -speex -srt -sse -sse2 -svga -tga -theora -tivo -truetype -v4l -v4l2 -vidix -x264 -xanim -xinerama -xvid -xvmc -zoran" VIDEO_CARDS="-mga -s3virge -tdfx -vesa" 13,589 kB 
[ebuild  N    ]  media-sound/lame-3.97  USE="gtk -debug -mp3rtp" 1,297 kB 
[ebuild  NS   ]   x11-libs/gtk+-1.2.10-r12  USE="nls -debug" LINGUAS="-az -ca -cs -da -de -el -es -et -eu -fi -fr -ga -gl -hr -hu -it -ja -ko -lt -nl -nn -no -pl -pt -pt_BR -ro -ru -sk -sl -sr -sv -tr -uk -vi" 2,881 kB 
[ebuild  NS   ]    dev-libs/glib-1.2.10-r5  USE="-hardened" 0 kB 

Total: 4 packages (2 new, 2 in new slots), Size of downloads: 17,766 kB