compiling gnome with gtk error

[David Stahl <number6 cc gatech edu>]

I get an error when building gnome 28.1 (the gnome-core package):

there's a lot of them actually, but they look like:

gmenu.o:(.text+0xbc8): undefined reference to `gtk_ctree_get_row_data` 

Did I mess up compiling gtk+? I know I have a ctree *.H file on my system,
but it looks like a problem with the linker.

dave
--
We were in Salino, Utah when we were arrested for not going
through a green light.  We pleaded "maybe".  I asked the judge
if he knew what time it is, he did, and I said, "No further questions."
	-Steven Wright