xorg on macppc

["Erik Bertelsen" <bertelsen.erik%gmail.com@localhost>]

On a macppc with src and xsrc sources updated to HEAD yesterday in the
afternoon, build.sh fails with:

.....
dependall ===> external/mit/xorg/lib/dri/i810
dependall ===> external/mit/xorg/lib/dri/i915
dependall ===> external/mit/xorg/lib/dri/i965
dependall ===> external/mit/xorg/lib/dri/mach64
     create  mach64/mach64_ioctl.d
In file included from
/home/NetBSD/xsrc/external/mit/MesaLib/dist/src/mesa/drivers/dri/mach64/mach64_ioctl.c:33:
/home/NetBSD/xsrc/external/mit/MesaLib/dist/src/mesa/drivers/dri/mach64/mach64_context.h:299:22:
error: byteswap.h: No such file or directory
nbmkdep: compile failed.

*** Failed target:  mach64_ioctl.d
*** Failed command:
CC=/home/NetBSD/obj.powerpc/tools.4.99.72-powerpc/bin/powerpc--netbsd-gcc
/home/NetBSD/obj.powerpc/tools.4.99.72-powerpc/bin/nbmkdep -f
mach64_ioctl.d --
-I/home/NetBSD/xsrc/external/mit/MesaLib/dist/src/mesa/main
-I/home/NetBSD/xsrc/external/mit/MesaLib/dist/src/mesa/glapi
-I/home/NetBSD/xsrc/external/mit/MesaLib/dist/src/mesa/shader
-I/home/NetBSD/xsrc/external/mit/MesaLib/dist/src/mesa/drivers/dri/common
-I/home/NetBSD/xsrc/external/mit/MesaLib/dist/src/mesa/drivers/dri/mach64/server
-I/home/NetBSD/xsrc/external/mit/MesaLib/dist/src/mesa
-I/home/NetBSD/xsrc/external/mit/MesaLib/dist/include
-I/usr/X11R7/include/X11/drm -I/usr/X11R7/include/X11 -D_NETBSD_SOURCE
-DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER
-DGLX_DIRECT_RENDERING -DGLX_INDIRECT_RENDERING -DHAVE_ALIAS
-DHAVE_POSIX_MEMALIGN -DCSRG_BASED -DFUNCPROTO=15 -DNARROWPROTO
-I/usr/X11R7/include -nostdinc -isystem /usr/include
/home/NetBSD/xsrc/external/mit/MesaLib/dist/src/mesa/drivers/dri/mach64/mach64_ioctl.c
*** Error code 1

Stop.
nbmake: stopped in /home/NetBSD/src/external/mit/xorg/lib/dri/mach64


- Erik