Someone

t64 ~ # emerge -pv mplayer

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

Calculating dependencies... done!
[ebuild   R   ] media-video/mplayer-1.0_rc1_p20070824  USE="X a52 aac aalib alsa directfb dts dvd encode fbcon gif gtk iconv jpeg mmx mmxext mp2 mp3 opengl png pvr samba sse sse2 theora unicode v4l v4l2 vorbis x264 xv* xvid -3dnow -3dnowext (-altivec) -amrnb -amrwb -arts -bidi -bindist -bl -cddb -cdio -cdparanoia -cpudetection -custom-cflags -dga -doc -dv -dvb -enca -esd -ftp -ggi -ipv6 -ivtv -jack -joystick -libcaca -lirc -live -livecd -lzo -mad -md5sum -musepack -nas -openal -oss -pnm -quicktime -radio -rar -real -rtc -sdl -speex -srt -ssse3 (-svga) -teletext -tga -tivo -truetype (-vidix) (-win32codecs) -xanim -xinerama -xvmc -zoran" VIDEO_CARDS="-i810 -mga -nvidia -s3virge -tdfx -vesa" 0 kB 

Total: 1 package (1 reinstall), Size of downloads: 0 kB