error: ln: /usr/libexec/ld-elf.so.1: Operation not permitted

  I'm getting a consistent error with cvsup from this morning during
make installworld


libexec/rtld-elf
install -s -o root -g wheel -m 555  -fschg -C -b ld-elf.so.1 /libexec
install -o root -g wheel -m 444 rtld.1.gz  /usr/share/man/man1
/usr/share/man/man1/ld-elf.so.1.1.gz -> /usr/share/man/man1/rtld.1.gz
/usr/share/man/man1/ld.so.1.gz -> /usr/share/man/man1/rtld.1.gz
/usr/libexec/ld-elf.so.1 -> /libexec/ld-elf.so.1
ln: /usr/libexec/ld-elf.so.1: Operation not permitted
*** Error code 1
Stop in /usr/src/libexec/rtld-elf.
*** Error code 1
Stop in /usr/src/libexec.
*** Error code 1
Stop in /usr/src.
*** Error code 1
Stop in /usr/src.
*** Error code 1
Stop in /usr/src.
*** Error code 1
Stop in /usr/src.
# exit
Script done on Sun Aug 17 07:48:42 2003

I've done make cleandir and re-cvsup etc. Same error.
amd 2400 asus mb. running cvsup/makeworld  almost daily for
4 months with minimal problems.

Probably something simple I just don't see.

cheers,

dave