Errors while compiling : unknown cause

[hitchhiker <hitchhiker cybermail net>]

can someone identify these error messages for me?
they've been ocurring in nearly all of my compiles (not just for gnome)
for several days now.
have I changed something on my machine that I shouldn't have?

thank you.
-- 
- The Hitchhiker

"The opposite of a trivial truth is plainly false.  The opposite of a
great truth is also true."
				-Neils Bohr