ncarg @6.3.0_9 +gcc6: Configuring fails because of non-existing directory

[GeneralDuke9]

When I try to update the ncarg port, at some point it hangs at the configuration step. Installing with the -v flag produces the following error message

Enter local include search path(s) : /opt/local/include/freetype2 /opt/local/include/udunits2 /opt/local/lib/hdfeos5/include /opt/local/include
Enter Return (default), new directories, or q(quit) >   * * * Warning: </opt/local/include/udunits2> does not exist

This keeps on going indefinitely, so the port doesn't get configured. I created the directory /opt/local/include/udunits2 manually, allowing the port to be configured properly, but in the end the build step had failed nonetheless. I have attached the log file.

Best regards,
Stan

[GeneralDuke9]

Logfile of installing ncarg