You are now in the directory for the port "graphics/ruby-opengl" (package name "ruby-opengl-0.31_1").
This is the one-line description for this port:
OpenGL/GLU/GLUT interface modules for Ruby
Please read the "description file" for a longer description.
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This port requires package(s) "Mesa-3.2.1_1 XFree86-3.3.6_4 ruby-1.6.2.p3" to build.
This port requires package(s) "Mesa-3.2.1_1 XFree86-3.3.6_4 ruby-1.6.2.p3" to run.