Created attachment 222027 [details] A typescript file documenting the build attempt. Apparently something has not been properly built when trying to create the installation package. Alternatively pkg-plist might be faulty. See the details in the attached typescript of the build attempt.
Hmmm... it works for me (r) and the package is built, see https://www.freshports.org/databases/grass7 Have you changed the options?
Created attachment 222438 [details] A better typescript file with MAKE_JOBS_UNSAFE=true set A better typescript file. This make run had MAKE_JOBS_UNSAFE=true set. It may help figuring out what is going on. This is also compressed with bzip2.