You are now in the directory for the port "misc/xdelta" (package name "xdelta-1.0.2").
This is the one-line description for this port:
A diff/patch utility for binary files
Please read the file "pkg/DESCR" for a longer description.
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This port requires package(s) "gdbm-1.8.0 glib-1.2.7 libtool-1.3.3" to build.
This port requires package(s) "glib-1.2.7" to run.