You are now in the directory for the port "graphics/plotmtv" (package name "plotmtv-1.4.1").
This is the one-line description for this port:
A multipurpose X11 plotting program
Please read the file "pkg/DESCR" for a longer description.
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This port requires package(s) "XFree86-3.3.3.1" to build.
This port requires package(s) "XFree86-3.3.3.1" to run.