compilers and libraries suck

I have finally found the bug which causes the popper program to crash when porting it to gnome.
Turns out my Make file had duplicate entries for the gnomeui libraries and header files:

`gnome-config gnomeui --libs `

`pkg-config libgnomeui-2.0`
The first gnome-config entry overrode the second one.  Unfortunately the program compiled and linked fine, it just coredumped when running.  Removing the gnome-config command allowed the program to still compile, only this time it runs fine afterwards!