You are now in the directory for the port "graphics/linux_dri" (package name "linux_dri-4.2.0_1").
This is the one-line description for this port:
Binary Linux DRI libraries for 3D hardware acceleration of linux apps
Please read the "description file" for a longer description.
Go to the top of the ports tree for a summary on how to use the ports collection.
This port requires package(s) "linux_base-7.1_2" to run.