make failure on cvs tip

I just sync'd up and am getting:

make[4]: Leaving directory `/opt/src/pgsql/src/port'
make[3]: PERL@: Command not found
make[3]: *** [sql_help.h] Error 127
make[3]: Leaving directory `/opt/src/pgsql/src/bin/psql'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/opt/src/pgsql/src/bin'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/opt/src/pgsql/src'
make: *** [all] Error 2

Any ideas?

Joe