Compiler error when doing a "make buildworld"

Hi,
 
I have now tried three time to upgrade from 5.1 to 5.2, and all three times
I get the same compile error.
 
I have updated my source all three times before starting the 'buildworld'.
 
This is the compiler error
 
===> secure/usr.bin/scp
cc -O1 -pipe -march=pentium3
-I/usr/src/secure/usr.bin/scp/../../../crypto/openssh -DNO_IDEA  -c
/usr/src/crypto/openssh/scp.c
cc -O1 -pipe -march=pentium3
-I/usr/src/secure/usr.bin/scp/../../../crypto/openssh -DNO_IDEA   -o scp
scp.o -lssh -lcrypt -lcrypto -lz
gzip -cn /usr/src/secure/usr.bin/scp/../../../crypto/openssh/scp.1 >
scp.1.gz
===> secure/usr.bin/sftp
cc -O1 -pipe -march=pentium3
-I/usr/src/secure/usr.bin/sftp/../../../crypto/openssh -DNO_IDEA  -c
/usr/src/crypto/openssh/sftp.c
cc -O1 -pipe -march=pentium3
-I/usr/src/secure/usr.bin/sftp/../../../crypto/openssh -DNO_IDEA  -c
/usr/src/crypto/openssh/sftp-client.c
cc -O1 -pipe -march=pentium3
-I/usr/src/secure/usr.bin/sftp/../../../crypto/openssh -DNO_IDEA  -c
/usr/src/crypto/openssh/sftp-int.c
cc -O1 -pipe -march=pentium3
-I/usr/src/secure/usr.bin/sftp/../../../crypto/openssh -DNO_IDEA  -c
/usr/src/crypto/openssh/sftp-common.c
cc -O1 -pipe -march=pentium3
-I/usr/src/secure/usr.bin/sftp/../../../crypto/openssh -DNO_IDEA  -c
/usr/src/crypto/openssh/sftp-glob.c
cc -O1 -pipe -march=pentium3
-I/usr/src/secure/usr.bin/sftp/../../../crypto/openssh -DNO_IDEA   -o sftp
sftp.o sftp-client.o sftp-int.o sftp-common.o sftp-glob.o -lssh -lcrypt
-lcrypto -lz
gzip -cn /usr/src/secure/usr.bin/sftp/../../../crypto/openssh/sftp.1 >
sftp.1.gz
===> secure/usr.bin/ssh
make: don't know how to make
/usr/src/crypto/openssh/openbsd-compat/basename.h. Stop
*** Error code 2
 
Stop in /usr/src/secure/usr.bin.
*** Error code 1
 
Stop in /usr/src/secure.
*** Error code 1
 
Stop in /usr/src.
*** Error code 1
 
Stop in /usr/src.
*** Error code 1
 
Stop in /usr/src.
 
my /etc/make.conf look like this
 
PERL_VER=5.6.1
PERL_VERSION=5.6.1
PERL_ARCH=mach
NOPERL=yo
NO_PERL=yo
NO_PERL_WRAPPER=yo
CPUTYPE?=p3
CFLAGS= -O1 -pipe
COPTFLAGS= -O1 -pipe
MAKE_SHELL?=sh
NO_SENDMAIL= true
NO_X= true
NOGAMES= true
 
any clues, on how to get around this error?
 
Regards
- Tom