Failed building XFree86-4-clients

On a recent -current
FreeBSD bishop.uberduper.com 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Mon Oct  6
15:12:45 PDT 2003
I am unable to build XFree86-4-clients from ports. Here's the last little bits
from the build.

macro "in" not recognized -- ignoring
making all in programs/bdftopcf...
cc -O -pipe -mcpu=pentiumpro -ansi -Dasm=__asm -Wall -Wpointer-arith -Wundef  
-I/usr/ports/x11/XFree86-4-clients/work/xc/include/fonts
-I/usr/ports/x11/XFree86-4-clients/work/xc/lib/font/include
-I/usr/ports/x11/XFree86-4-clients/work/xc/lib/font/bitmap 
-I/usr/ports/x11/XFree86-4-clients/work/xc
-I/usr/ports/x11/XFree86-4-clients/work/xc/exports/include 
-I/usr/X11R6/include -DCSRG_BASED  -DFUNCPROTO=15 -DNARROWPROTO     -c
bdftopcf.c
In file included from /usr/include/string.h:40,
                 from
/usr/ports/x11/XFree86-4-clients/work/xc/exports/include/X11/Xfuncs.h:49,
                 from
/usr/ports/x11/XFree86-4-clients/work/xc/lib/font/include/fontmisc.h:38,
                 from bdftopcf.c:34:
/usr/include/sys/cdefs.h:173:51: warning: "__STDC_VERSION__" is not defined
/usr/include/sys/cdefs.h:184:5: warning: "__STDC_VERSION__" is not defined
/usr/include/sys/cdefs.h:372:5: warning: "_POSIX_C_SOURCE" is not defined
/usr/include/sys/cdefs.h:378:5: warning: "_POSIX_C_SOURCE" is not defined
make: don't know how to make
/usr/ports/x11/XFree86-4-clients/work/xc/exports/lib/libfntstubs.a. Stop
*** Error code 2

Any ideas?

James.