Xorg built fails on CURRENT: can't find Xauth.h

Running CURRENT from CVSup about aa week ago. Trying to follow the
recommended way to swap out XFree86 for Xorg, which a poster said was:

  pkg_delete -f /var/db/pkg/XFree86-*
  cd /usr/ports/x11/xorg && make install

It bombs out looking for an Xauth.h file; there are no *.h files,
there (just directories), and there's no Xauth.h file in those
subtrees.  I'm I doing something wrong?  

Thanks.

  
cd /usr/ports/x11/xorg/
nice make install
===>  Installing for xorg-6.7.0_1
===>   xorg-6.7.0_1 depends on executable: xvinfo - found
===>   xorg-6.7.0_1 depends on file: /usr/X11R6/share/doc/X11/ddx.txt - not foun\
d
===>    Verifying install for /usr/X11R6/share/doc/X11/ddx.txt in /usr/ports/x11\
/xorg-documents
===>  Vulnerability check disabled, database not found
>> X11R6.7.0-src6.tar.gz doesn't seem to exist in /usr/ports/distfiles/xorg.
>> Attempting to fetch from http://freedesktop.org/~xorg/X11R6.7.0/src/.
[time passes]
cc -c -O -pipe -ansi -pedantic -Wno-system-headers -Dasm=__asm  -Wall -Wpointer-\
arith -Wundef    -fno-merge-constants -I../include -I/usr/local/ports/x11-server\
s/xorg-server/work/xc/exports/include/X11 -I/usr/local/ports/x11-servers/xorg-se\
rver/work/xc/include/fonts -I/usr/local/ports/x11-servers/xorg-server/work/xc/in\
clude/extensions               -I/usr/local/ports/x11-servers/xorg-server/work/x\
c/programs/Xserver/Xext -I/usr/local/ports/x11-servers/xorg-server/work/xc/progr\
ams/Xserver/lbx  -I/usr/local/ports/x11-servers/xorg-server/work/xc -I/usr/local\
/ports/x11-servers/xorg-server/work/xc/exports/include  -I/usr/X11R6/include -DC\
SRG_BASED -DSHAPE -DXINPUT -DXKB  -DXAPPGROUP   -DXCSECURITY -DTOGCUP   -DXF86BI\
GFONT -DDPMSExtension     -DPANORAMIX    -DRENDER -DRANDR -DGCCUSESGAS -DAVOID_G\
LYPHBLT -DPIXPRIV -DSINGLEDEPTH                                 -DXFreeXDGA -DXv\
Extension                               -DXFree86LOADER  -DXFree86Server        \
                        -DXF86VIDMODE                           -DXvMCExtension \
                                -DSMART_SCHEDULE                                \
-DBUILDDEBUG -DXResExtension                            -DX_BYTE_ORDER=X_LITTLE_\
ENDIAN                          -DXORG_VERSION_CURRENT="(((6) * 10000000) + ((7)\
 * 100000) + ((0) * 1000) + 0)" -DNDEBUG   -DFUNCPROTO=15 -DNARROWPROTO     -DVE\
NDOR_STRING=\""The X.Org Foundation"\" -DVENDOR_RELEASE="(((6) * 10000000) + ((7\
) * 100000) + ((0) * 1000) + 0)"   cursor.c
make: don't know how to make /usr/X11R6/include/X11/Xauth.h. Stop
*** Error code 2

Stop in /usr/local/ports/x11-servers/xorg-server/work/xc/programs/Xserver.
*** Error code 1

Stop in /usr/local/ports/x11-servers/xorg-server.
*** Error code 1

Stop in /usr/local/ports/x11/xorg.

Compilation exited abnormally with code 1 at Mon Jul 26 09:50:23