Compiling fails on Mac OS X 10.5

[mc]

Hi!
I'm trying to compile on my Macbook with OS X 10.5. I have all updates
and Xcode 3.0 installed.

I checked python out with: svn checkout http://svn.python.org/projects/python/branches/py3k
After that I did "./configure" in the  created "py3k" dir. Everything
went fine. But make fails with the following error message:
ranlib libpython3.0.a
gcc  -u _PyMac_Error -o python.exe \
			Modules/python.o \
			libpython3.0.a -ldl
make: *** [sharedmods] Error 1

I tried checking out many times. I also tried de 3.0a2 release,gives
me the same error. I've heard others have compiled it successfully on
Leopard so I wonder what causes the problems on my system.