[mythtv-users] MythTV Compile Options

[Brian Wood]

On Feb 6, 2006, at 8:48 PM, Isaac Richards wrote:

> On Monday 06 February 2006 22:38, Brian Wood wrote:
>> On Feb 6, 2006, at 7:12 PM, Brian Wood wrote:
>>> On Feb 6, 2006, at 5:16 PM, Michael T. Dean wrote:
>>>> Brian Wood wrote:
>>>
>>> <Snipped for Brevity>
>>>
>>>> Just turn off OpenGL vsync with a setting in 0.18-fixes or  
>>>> higher and
>>>> turn on XvMC.
>>>>
>>>> Mike
>>>
>>> OK, Gentoo's "Ebuild" system can be your friend or your enemy :-) I
>>> need to find the correlation between Gentoo's "USE" flags and the
>>> config options, but you have certainly pointed me in the correct
>>> direction. Thanks as always.
>>
>> In case this might help others:
>>
>> It turns out that the amd64 architecture running in 64-bit mode
>> supports sse and sse2 but *not* mmx. It does support mmx if running
>> in 32-bit mode.
>
> Wrong.
>

Please elaborate. I admit the info I got was from 2004, but it was  
from AMD.

What is the situation with processor-specific compilation options?

I'm simply trying to find out if it's worth re-compiling with mmx  
support on a 64-bit amd64 system. It seemed wrong to me that Gentoo  
would not permit this, which is why I asked the question in the first  
place.

I'd greatly appreciate any info.