You are now in the directory for the port "games/doom" (package name "doom-1.8").
This is the one-line description for this port:
DOOM: the game and the sound server
Please read the "description file" for a longer description.
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This port requires package(s) "XFree86-3.3.6_4 gettext-0.10.35 gmake-3.79.1 unzip-5.41" to build.
This port requires package(s) "XFree86-3.3.6_4" to run.