| 1 |
On Tuesday 28 November 2006 02:33, Mark Knecht wrote: |
| 2 |
> Hi, |
| 3 |
> It seems that suddenly many CPU instruction flags for multimedia |
| 4 |
> have become usable on my AMD64 machine and an emerge is indicated to |
| 5 |
> rebuild a bunch of stuff. These have been off since I originally built |
| 6 |
> the machine. |
| 7 |
> |
| 8 |
> I have no issues about building the programs but I first wanted to |
| 9 |
> check that this isn't some mistake. Are these flags now supported on |
| 10 |
> AMD64? |
| 11 |
> |
| 12 |
> I'm showing mplayer here but there are probably 20-30 other |
| 13 |
> programs on my machine asking to be rebuilt. |
| 14 |
> |
| 15 |
> Thanks, |
| 16 |
> Mark |
| 17 |
> |
| 18 |
> |
| 19 |
> [ebuild R ] media-video/mplayer-1.0_pre8 USE="3dnow* 3dnowext* X |
| 20 |
> alsa dvd dvdread encode gif gtk i8x0 ipv6 jack jpeg (mmx*) mmxext* |
| 21 |
> opengl png sdl (sse*) (sse2*) truetype unicode v4l v4l2 vorbis xv xvid |
| 22 |
> (-3dfx) -aac -aalib (-altivec) -arts -bidi -bindist -bl -cdparanoia |
| 23 |
> -cpudetection -custom-cflags -debug -dga -directfb -doc -dts -dv -dvb |
| 24 |
> -esd -fbcon -ggi -joystick -libcaca -lirc -live -livecd -lzo -mad |
| 25 |
> -matrox -musepack -nas -nvidia -openal -oss (-real) -rtc -samba -speex |
| 26 |
> (-svga) -tga -theora (-win32codecs) -x264 -xanim -xinerama -xvmc |
| 27 |
> (-xmms%)" LINGUAS="-bg -cs -da -de -el -en -es -fr -hu -ja -ko -mk -nl |
| 28 |
> -no -pl -pt_BR -ro -ru -sk -tr -uk -zh_CN -zh_TW" 220 kB |
| 29 |
|
| 30 |
This is normal, they changed the way these flags are handled because not all |
| 31 |
64bit cpu's support the same instructions. As you can see in the mplayer |
| 32 |
package, mmx,sse and sse2 are still masked because they supported on all |
| 33 |
64bit cpu's. Those are always enabled ! |
| 34 |
|
| 35 |
The remaining flags you can set if your cpu supports them. |
| 36 |
$ grep flags /proc/cpuinfo |
| 37 |
-- |
| 38 |
gentoo-amd64@g.o mailing list |
Archives