Compiled X.Org 6.8.2 with defaults on debian-ppc64 (powermac g5), everything
went fine. Started xorgcfg, bails out with the following:

(pasted from /var/log/Xorg.0.log)

X Window System Version 6.8.2
Release Date: 9 February 2005
X Protocol Version 11, Revision 0, Release 6.8.2
Build Operating System: Linux 2.6.10 ppc64 [ELF]
Current Operating System: Linux g5 2.6.10 #3 SMP Fri Feb 18 12:29:14 EET 2005 ppc64
Build Date: 23 February 2005
        Before reporting problems, check http://wiki.X.Org
        to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Wed Feb 23 19:20:21 2005
(WW) Open APM failed (/dev/apm_bios) (No such file or directory)
(II) Module ABI versions:
        X.Org ANSI C Emulation: 0.2
        X.Org Video Driver: 0.7
        X.Org XInput driver : 0.4
        X.Org Server Extension : 0.2
        X.Org Font Renderer : 0.4
(II) Loader running on linux
(II) LoadModule: "bitmap"
(II) Loading /usr/X11R6/lib64/modules/fonts/libbitmap.a
 
   *** If unresolved symbols were reported above, they might not
   *** be the reason for the server aborting.
 
Fatal server error:
Caught signal 11.  Server aborting
 
 
Please consult the The X.Org Foundation support
         at http://wiki.X.Org
 for help.
Please also check the log file at "/var/log/Xorg.0.log" for additional information.