You are now in the directory for the port "graphics/Mesa3" (package name "Mesa-3.2.1_1").
This is the one-line description for this port:
A graphics library similar to SGI's OpenGL
Please read the "description file" for a longer description.
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This port requires package(s) "XFree86-3.3.6_4 bzip2-1.0.1 gettext-0.10.35 gmake-3.79.1 libtool-1.3.4_1" to build.
This port requires package(s) "XFree86-3.3.6_4" to run.