I believe you are missing the liconv library. Did you make sure to install that when you installed the various libraries at the start. I’ll double check exactly what libraries I have installed later tonight when I’m back at my comp if you are still having any problems.
Edit: pretty sure you needed the version 2 of one of the libraries, so check if there is an iconv2 library to download.
Edit Edit: Yeah, go download the libiconv2 with the Cygwin package downloader and you should be fine (hopefully). I’ll update the wiki as well.