db46 build failure

--->  Computing dependencies for db46
--->  Building db46
Error: Target org.macports.build returned: shell command " cd "/Users/lloyd/.macports/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_databases_db46/work/db-4.6.21/build_unix" && /usr/bin/make -j2 all " returned error 2
Command output: ld: symbol(s) not found
collect2: ld returned 1 exit status
make: *** [db_archive] Error 1
make: *** Waiting for unfinished jobs....
ld warning: in ./.libs/libdb-4.6.dylib, file is not of required architecture
Undefined symbols:
  "___os_id", referenced from:
      ___db_util_logset in util_log.o
  "_db_env_create", referenced from:
      _main in db_checkpoint.o
  "_db_strerror", referenced from:
      _main in db_checkpoint.o
      _main in db_checkpoint.o
  "___os_sleep", referenced from:
      _main in db_checkpoint.o
  "___db_ctime", referenced from:
      _main in db_checkpoint.o
      _main in db_checkpoint.o
      ___db_util_logset in util_log.o
  "___db_getlong", referenced from:
      _main in db_checkpoint.o
      _main in db_checkpoint.o
  "___db_rpath", referenced from:
      _main in db_checkpoint.o
  "_db_version", referenced from:
      _version_check in db_checkpoint.o
      _main in db_checkpoint.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make: *** [db_checkpoint] Error 1

Error: Status 1 encountered during processing.