remove "--disable-dri" target, add "--enable-xaa" target for configure

[Martin Stolpe]

Hello,
this is my first post on this list, so please don't be too harsh to me. ;-) 
Please keep in mind that I only have some very basic programming skills and 
its the first time I looked at the driver code. So please excuse me if I got 
some things wrong.

I've started a thread on the phoronix forums: 
http://phoronix.com/forums/showthread.php?t=20718
This e-mail is supposed to be a summary of the thread and of what I've 
understood/not understood so far.

I was playing around with the ati driver and the things related to the driver 
(DRI, DRI2, KMS) this weekend because KMS+DRI2 is making some problems on my 
system (opening many windows causing the system to freeze for a split second, 
mouse cursor stuttering because of this, audio stutters). I didn't file a bug 
report because I have no idea what's causing this behaviour (driver, mesa, 
kernel, xorg,...).

On to the summary: -It seems like the driver doesn't work when xorg server is 
compiled with dri disabled (driver compiles but X server won't start), so I 
removed the "--disable-dri" target from the make configuration.
-I've added an "--enable-xaa" to the make configuration
-fixed two version checks which didn't work correctly
-XF86DRI is defined by xorg. So the "--disable-dri" target doesn't work because 
XF86DRI will be defined if xorg-server is compiled with dri support. Can 
someone confirm this?

My Xorg.log tells me now:
"RADEON(0): [agp] AGP not available
RADEON(0): [agp] AGP failed to initialize. Disabling the DRI."
but this doesn't seem to be the fault of the driver.
Setup is as follows:
 -kms enabled
 -xorg compiled with dri, dri2
 -ati driver compiled with "--disable-kms"

Greetings,
Martin
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