Question about build dependencies

[Tabitha McNerney]

Hello all --
I have what might seem to be a dumb question. I noticed today that the
MacPort named "libiconv" version 1.12 has a build dependency on another port
named gperf, specifically:

$ port deps libiconv
>
libiconv has build dependencies on:

gperf


What I find very interesting about this situation, however, is that on my
MacPorts system I have not consciously built / installed the gperf port. But
I have successfully built and installed the libiconv port. Therefore, I am
wondering, how is it possible that the libiconv port was able to build and
install without the gperf port dependency having first been built?

Thanks for shedding any light on this.

-T.M.
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