You are now in the directory for the port "misc/xdelta" (package name "xdelta-1.1.1").
This is the one-line description for this port:
A diff/patch utility for binary files
Please read the "description file" for a longer description.
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This port requires package(s) "glib-1.2.8 libtool-1.3.4_1" to build.
This port requires package(s) "glib-1.2.8" to run.