You are now in the directory for the port "misc/xgas" (package name "xgas-1.0").
This is the one-line description for this port:
The animated simulation of an ideal gas
Please read the file "pkg/DESCR" for a longer description.
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This port requires package(s) "XFree86-3.3.2" to build.
This port requires package(s) "XFree86-3.3.2" to run.