After a `make distclean` and a whole recompile I still get these:

building 'crypt' extension
gcc -pthread -fPIC -g -O0 -Wall -Wstrict-prototypes -I. -I./Include -I/usr/local/include -IInclude -I/home/antoine/py3k/debug -c /home/antoine/py3k/debug/Modules/cryptmodule.c -o build/temp.linux-x86_64-3.2-pydebug/home/antoine/py3k/debug/Modules/cryptmodule.o
gcc -pthread -shared build/temp.linux-x86_64-3.2-pydebug/home/antoine/py3k/debug/Modules/cryptmodule.o -L/usr/local/lib -o build/lib.linux-x86_64-3.2-pydebug/crypt.cpython-32dm.so
*** WARNING: renaming "crypt" since importing it failed: build/lib.linux-x86_64-3.2-pydebug/crypt.cpython-32dm.so: undefined symbol: crypt

building 'nis' extension
gcc -pthread -fPIC -g -O0 -Wall -Wstrict-prototypes -I. -I./Include -I/usr/local/include -IInclude -I/home/antoine/py3k/debug -c /home/antoine/py3k/debug/Modules/nismodule.c -o build/temp.linux-x86_64-3.2-pydebug/home/antoine/py3k/debug/Modules/nismodule.o
gcc -pthread -shared build/temp.linux-x86_64-3.2-pydebug/home/antoine/py3k/debug/Modules/nismodule.o -L/usr/local/lib -o build/lib.linux-x86_64-3.2-pydebug/nis.cpython-32dm.so
*** WARNING: renaming "nis" since importing it failed: build/lib.linux-x86_64-3.2-pydebug/nis.cpython-32dm.so: undefined symbol: yp_get_default_domain

Failed to build these modules:
crypt              nis