Cannot compile Pidgin 2.10.12 for Windows (cannot find -lssl3, -lnss3, etc)

[Andrew Martin]

Hello,

I am attempting to compile Pidgin 2.10.12 for Windows both on a host Ubuntu
16.04 server as well as on Windows itself using cygwin. I have been following
these instructions:
https://developer.pidgin.im/wiki/BuildingWinPidgin#Themanualway

On both Windows and Ubuntu, I get stuck at this point where -lssl3, -lnss3, and
a few others are not found: 
http://pastebin.com/RazgDckR

How can I resolve this error and successfully compile Pidgin?

Thanks,

Andrew