sprinkle xf86SetModeDefaultName() since apparently xf86CVTMode() no longer
sets a mode's .name
now this works again on macppc

various updates to build against xorg-server 21.1.3.

- avoid a const issue with an expanded __UNCONST().
- cope with renamed member names
- deal with "xf86RamDac.h" going away (now use "xf86Cursor.h")

using abs on floating point values...

fix various errors and warnings with xorg-server 1.20:

- no Error() in scope
- more wakeup/blockhandler ABI changes
- more notify fd API changes
- more xf86CursorResetCursor changes
- lots of char* -> const char*
- fix ati kms config.h now HAVE_XF86_CURSOR_RESET_CURSOR is available
- another xf86GetOS() is removed fix
- OsBlockSIGIO() etc, -> old, but still around API until properly converted
- don't free const char * data owned by some other system

initial import of xf86-video-ati-6.14.6.

NetBSD note: The libdrm requirement seems to be KMS related which we do
not have.

* 6.15.6
This version requires the latest libdrm 2.4.36 release, and fixes a few
other bugs seen since 6.14.5.
* 6.14.5
- add solid picture accel
- tiling fixes
- new pci ids
- 6xx-9xx Xv improvements
- support for upcoming xserver API changes
- bug fixes

initial import of xf86-video-ati-6.13.0

initial import of xf86-video-ati-6.12.2

initial import of xf86-video-ati-6.9.0