You are now in the directory for the port "security/nettle" (package name "nettle-1.5_2").
This is the one-line description for this port:
A low-level cryptographic library
Please read the "description file" for a longer description.
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This port requires package(s) "expat-1.95.5 gettext-0.11.5_1 gmake-3.80 libgmp-4.1_1 libiconv-1.8_2" to build.
This port requires package(s) "libgmp-4.1_1" to run.