I did a CVS update today and it compiles fine now.
Hmm.. with a fresh checkout I still need to manualy include that path..
did you use anything extra ordinary for ./configure ?
edit:
finally got it to compile had to do
make CPPFLAGS="$(CPPFLAGS) -I../sdk/as/include -I../sdk/.libs -I../sdk/ -I../sdk/Managers -I../sdk/tinyxml -I../sdk/wxscintilla -I../sdk/resources"
wich seems a little excessive, but uhm..
also
./configure --disable-contrib
./configure --enable-contrib
./configure --enable-contrib=no
all compiles the contrib dir.. Im kind of thinking that that is not the intention..