Can't build from pkgsrc

[Mark Kirby <mark%fishladder.co.uk@localhost>]

Hi,

I have just checked out a fresh copy of  pkgsrc from anoncvs. Every  
time i try to build something i get the following:

# make
===> ArX
usage: pkg_admin [-bqSvV] [-C config] [-d lsdir] [-K pkg_dbdir] [-s  
sfx] command args ...
Where 'commands' and 'args' are:
 rebuild                     - rebuild pkgdb from +CONTENTS files
 rebuild-tree                - rebuild +REQUIRED_BY files from  
forward deps
 check [pkg ...]             - check md5 checksum of installed files
 add pkg ...                 - add pkg files to database
 delete pkg ...              - delete file entries for pkg in database
 set variable=value pkg ...  - set installation variable for package
 unset variable pkg ...      - unset installation variable for package
 lsall /path/to/pkgpattern   - list all pkgs matching the pattern
 lsbest /path/to/pkgpattern  - list pkgs matching the pattern best
 dump                        - dump database
 pmatch pattern pkg          - returns true if pkg matches pattern,  
otherwise false
 fetch-pkg-vulnerabilities [-s] - fetch new vulnerability file
 check-pkg-vulnerabilities [-s] <file> - check syntax and checksums  
of the vulnerability file
 audit [-es] [-t type] ...       - check installed packages for  
vulnerabilities
 audit-pkg [-es] [-t type] ...   - check listed packages for  
vulnerabilities
 audit-batch [-es] [-t type] ... - check packages in listed files for  
vulnerabilities
 audit-history [-t type] ...     - print all advisories for package  
names
 config-var name                 - print current value of the  
configuration variable
make: Unclosed substitution for  (/ missing)
make: "../../mk/configure/../../mk/configure/gnu-configure.mk" line  
40: Malformed conditional (${GNU_CONFIGURE_PREFIX} == ${PREFIX})
make: "../../mk/configure/../../mk/configure/gnu-configure.mk" line  
54: Malformed conditional (${GNU_CONFIGURE_PREFIX} == ${PREFIX})
make: Fatal errors encountered -- cannot continue

make: stopped in /external/source/pkgsrc/devel/ArX

I suspected my make was corrupted but its currently munching through  
building a release.

Does any one have any ideas about what i have done to my system? Its  
NetBSD 5.99.5 i386 if that helps.

Cheers

Mark