You are now in the directory for the port "devel/ruby-rbison" (package name "ruby-rbison-0.0.7").
This is the one-line description for this port:
Generates a Ruby parser class from a Bison-like specification file
Please read the "description file" for a longer description.
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This port requires package(s) "ruby-1.6.8" to build.
This port requires package(s) "bison-1.75 expat-1.95.5 gettext-0.11.5_1 libiconv-1.8_2 m4-1.4_1 ruby-1.6.8" to run.