You are now in the directory for the port "x11/tk4" (package name "tk-4.0.2").
This is the one-line description for this port:
TK (Tcl Tool Kit), version 4.0p2
Please read the file "pkg/DESCR" for a longer description.
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This port requires package(s) "gmake-3.74 tcl-7.4.2" to build.
This port requires package(s) "tcl-7.4.2" to run.