Hi, pasting terminal output in emails is fine. :p
Run this command:
sudo yum install 'pkgconfig(gnutls)'
That should install the package gnutls-devel.
It's normally quite difficult to build bleeding edge GNOME packages with
the build dependencies provided by a stable Fedora release. Looks like
that worked for vte, but if you're going to be building more packages, I
strongly recommend using jhbuild:
https://wiki.gnome.org/GnomeLove/BuildGnome
Michael