Major error when trying to portupgrade on latest -current system/ports.

Hi,

This morning I updated two machines to the latest -current and the ports 
system was cvsup'd at the same time. However I have something odd going 
on I wondered if you could point me in the right direction with?

On one machine everything is working perfectly. I just ran portupgrade 
-rai and it's run through perfectly normally. However on the other 
machine I get this shown below.

Any idea what could be screwed up or wrong or need rebuilding etc?

I would normally think that something like /usr/ports/Mk/* has been 
corrupted but the second machine is using the same ports tree over an 
NFS mount and is working fine.

uname -a:
FreeBSD tao.xtaz.net 5.2-CURRENT FreeBSD 5.2-CURRENT #0: Wed Feb  4 
12:54:43 GMT 2004     root_at_tao.xtaz.net:/usr/obj/usr/src/sys/TAO  i386

libmap.conf:
libc_r.so.5                     libpthread.so.1
libc_r.so                       libpthread.so
libkse.so.1                     libpthread.so.1
libkse.so                       libpthread.so

root_at_tao[portupgrade]$ portupgrade -rai
--->  Session started at: Wed, 04 Feb 2004 14:05:33 +0000
"/usr/ports/Mk/bsd.python.mk", line 147: warning: String comparison 
operator should be either == or !=
"/usr/ports/Mk/bsd.python.mk", line 147: Malformed conditional 
(!empty(_PYTHON_VERSION_MINIMUM) && (  ${_PYTHON_VERSION} < 
${_PYTHON_VERSION_MINIMUM}))
"/usr/ports/Mk/bsd.python.mk", line 150: warning: String comparison 
operator should be either == or !=
"/usr/ports/Mk/bsd.python.mk", line 150: Malformed conditional 
(!empty(_PYTHON_VERSION_MAXIMUM) && (  ${_PYTHON_VERSION} > 
${_PYTHON_VERSION_MAXIMUM}))
"/usr/ports/Mk/bsd.port.mk", line 1270: if-less endif
"/usr/ports/Mk/bsd.port.mk", line 1270: Need an operator
Syntax error: "(" unexpected
"/usr/ports/Mk/bsd.port.mk", line 2775: warning: "echo %%PREFIX%%/lib | 
/usr/bin/sed -e s!%%PYTHON_INCLUDEDIR%%!Bad!g -e s!%%system!g -e 
s!%%call!g -e s!%%(core!g -e s!%%dumped)!g -e 
s!%%/usr/local/include/python2.3!g -e s!%%PYTHON_LIBDIR%%!Bad!g -e 
s!%%system!g -e s!%%call!g -e s!%%(core!g -e s!%%dumped)!g -e 
s!%%/usr/local/lib/python2.3!g -e s!%%PYTHON_PLATFORM%%!freebsd5!g -e 
s!%%PYTHON_SITELIBDIR%%!Bad!g -e s!%%system!g -e s!%%call!g -e 
s!%%(core!g -e s!%%dumped)!g -e 
s!%%/usr/local/lib/python2.3/site-packages!g -e 
s!%%PYTHON_VERSION%%!python2.3!g -e s!%%OSREL%%!5.2!g -e 
s!%%PREFIX%%!%D!g -e s!%%LOCALBASE%%!/usr/local!g -e 
s!%%X11BASE%%!/usr/X11R6!g -e s!%%PORTDOCS%%!""!g -e 
s!%%PORTOBJFORMAT%%!elf!g -e s!%%XAWVER%%!7!g -e 
s!%%PERL_VERSION%%!5.8.2!g -e s!%%PERL_VER%%!5.8.2!g -e 
s!%%PERL_ARCH%%!mach!g -e s!%%SITE_PERL%%!lib/perl5/site_perl/5.8.2!g -e 
s!%%DOCSDIR%%!"share/doc/libglade2"!g -e 
s!%%EXAMPLESDIR%%!"share/examples/libglade2"!g -e 
s!%%DATADIR%%!"share/libglade2"!g" returned non-zero status
make: fatal errors encountered -- cannot continue