[q]
When I run "Configure" it asks if I have glib installed and "make" says glib.h does not exist, but it does in /opt/gnome/include/glib-1.2.
[/q]

What operating system or rather package system do you use?
It looks like neither glib-config nor gtk-config are in
your path. Those are probably in /opt/gnome/bin.
If you install GTK+/GLib 2.x you should have pkg-config in your path. Without them Configure won't be able to figure out the necessary compiler and linker flags.


[q]
I also get this:
strlcpy() NOT found.
<libcharset.h> NOT found.
[/q]

That's not a problem, just an informational message.

[q]
It also says something about not finding GTK+, but is seems to find GTK1. Will that be a problem?
[/q]

Yes, you need GTK+/GLib (1.2 or 2.x) and libxml2.