cdo @1.6.2: fatal error: 'yaxt.h' file not found

[jhamman1@…]

CDO fails to build with or without variants.

joes-imac:~$ sudo port clean cdo
--->  Cleaning cdo
joes-imac:~$ sudo port install cdo
--->  Computing dependencies for cdo
--->  Fetching archive for cdo
--->  Attempting to fetch cdo-1.6.2_0+mpi.darwin_13.x86_64.tbz2 from http://packages.macports.org/cdo
--->  Attempting to fetch cdo-1.6.2_0+mpi.darwin_13.x86_64.tbz2 from http://mse.uk.packages.macports.org/sites/packages.macports.org/cdo
--->  Attempting to fetch cdo-1.6.2_0+mpi.darwin_13.x86_64.tbz2 from http://lil.fr.packages.macports.org/cdo
--->  Fetching distfiles for cdo
--->  Verifying checksums for cdo
--->  Extracting cdo
--->  Configuring cdo
--->  Building cdo
Error: org.macports.build for port cdo returned: command execution failed
Please see the log file for port cdo for details:
  /opt/local/var/macport/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_science_cdo/cdo/main.log
  To report a bug, follow the instructions in the guide:
  http://guide.macports.org/#project.tickets
Error: Processing of port cdo failed

• log file attached.
• OS: 10.9
• Machine: Late 2013 imac
• and yes, X-code command line tools are installed.

[jhamman1@…]

Log file