localhost ~ # emerge -pv libdrm mesa mesa-progs xf86-video-ati glproto xf86driproto

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

Calculating dependencies... done!
[ebuild   R   ] x11-libs/libdrm-2.3.0  USE="-debug" 0 kB
[ebuild   R   ] media-libs/mesa-6.5.1-r1  USE="motif nptl -debug -doc -hardened" VIDEO_CARDS="i810 radeon -mach64 -mga -none -r128 -s3virge -savage -sis (-sunffb) -tdfx -trident -via" 0 kB
[ebuild     U ] virtual/opengl-7.0 [6.8] 0 kB
[ebuild   R   ] x11-apps/mesa-progs-6.5.1  0 kB
[ebuild   R   ] x11-drivers/xf86-video-ati-6.6.3  USE="dri -debug" 0 kB
[ebuild   R   ] x11-proto/glproto-1.4.8  USE="-debug" 0 kB
[ebuild   R   ] x11-proto/xf86driproto-2.0.3  USE="-debug" 0 kB

Total: 7 packages (1 upgrade, 6 reinstalls), Size of downloads: 0 kB