很多包要重新安装

#emerge -avuND world

[ebuild N ] media-libs/x264-0.0.20081006 USE="threads -debug" 2,196 kB
[ebuild R ] x11-libs/qt-core-4.4.2 USE="glib qt3support ssl -custom-cxxflags% -debug -doc -pch" 0 kB
[ebuild R ] x11-libs/qt-dbus-4.4.2 USE="-custom-cxxflags% -debug -pch" 0 kB
[ebuild R ] x11-libs/qt-script-4.4.2 USE="-custom-cxxflags% -debug -pch" 0 kB
[ebuild R ] x11-libs/qt-sql-4.4.2 USE="qt3support sqlite -custom-cxxflags% -debug -firebird -mysql -odbc -pch -postgres" 0 kB
[ebuild R ] x11-libs/qt-gui-4.4.2-r1 USE="accessibility dbus glib qt3support tiff -cups -custom-cxxflags% -debug -mng -nas -nis -pch -xinerama" INPUT_DEVICES="-wacom" 0 kB
[ebuild R ] x11-libs/qt-qt3support-4.4.2 USE="accessibility -custom-cxxflags% -debug -pch" 0 kB
[ebuild U ] net-misc/rsync-3.0.5 [3.0.4] USE="acl iconv xinetd -ipv6 -static -xattr" 759 kB
[ebuild N ] media-libs/libsndfile-1.0.17-r1 USE="alsa sqlite -flac" 804 kB
[ebuild N ] media-sound/twolame-0.3.12 472 kB
[ebuild N ] media-libs/libdv-1.0.0-r2 USE="sdl xv -debug" 571 kB
[ebuild R ] media-video/mplayer-1.0_rc2_p28450 USE="X a52 aac alsa ass directfb dts dv* dvd encode esd gif iconv jpeg live* mad md5sum* mmx mp2* mp3 opengl oss* png quicktime rar real samba sdl theora truetype unicode v4l v4l2 vorbis win32codecs x264* xv xvid -3dnow -3dnowext -aalib (-altivec) -amrnb -amrwb -arts -bidi -bindist -bl -cddb -cdio -cdparanoia -cpudetection -custom-cflags -custom-cpuopts -debug -dga -dirac -doc -dvb (-dvdnav) -dxr3 -enca -fbcon -ftp -ggi -gtk -ipv6 -jack -joystick -ladspa -libcaca -lirc -lzo -mmxext -mng -musepack -nas -nemesi -openal -pnm -pulseaudio -pvr -radio -rtc -schroedinger -speex -sse -sse2 -ssse3 -svga -teletext -tga -vidix -xanim -xinerama -xscreensaver -xvmc -zoran" VIDEO_CARDS="vesa -mga -s3virge -tdfx" 0 kB


qt都有带这个找不到的USE -custom-cxxflags%
不知道是什么原因