I have the following error when compiling the last rev of branch py3k on an AIX 6 system:

./Modules/makexp_aix Modules/python.exp . libpython3.2.a;  xlc_r -L/home/cis/data/bamboo-home-agent-runtime/xml-data/build-dir/RTAIX30-SUP/target/support/lib -L/home/cis/data/bamboo-home-agent-runtime/xml-data/build-dir/RTAIX30-SUP/target/support/lib -L/home/cis/data/bamboo-home-agent-runtime/xml-data/build-dir/RTAIX30-SUP/target/support/lib -L/home/cis/data/bamboo-home-agent-runtime/xml-data/build-dir/RTAIX30-SUP/target/support/lib  -L/sgbd_product/oracle/10.2.0/lib32 -L/sgbd_product/oracle/10.2.0/lib32 -L/home/cis/data/bamboo-home-agent-runtime/xml-data/build-dir/RTAIX30-SUP/target/support/lib -L/home/cis/data/bamboo-home-agent-runtime/xml-data/build-dir/RTAIX30-SUP/target/support/lib -L/home/cis/data/bamboo-home-agent-runtime/xml-data/build-dir/RTAIX30-SUP/target/support/lib -L/home/cis/data/bamboo-home-agent-runtime/xml-data/build-dir/RTAIX30-SUP/target/support/lib  -L/sgbd_product/oracle/10.2.0/lib32 -L/sgbd_product/oracle/10.2.0/lib32 -Wl,-bE:Modules/python.exp -lld -o python Modules/python.o libpython3.2.a -lintl -ldl    -lm  
ld: 0711-596 SEVERE ERROR: Object libpython3.2.a[ceval.o]
        An RLD for section 2 (.data) refers to symbol 0,
        but the storage class of the symbol is not C_EXT or C_HIDEXT.

Python 3.1.2 or Python 2.7 both compile fine.

I also tried rev 73580 of this branch which compiled fine also.

I will try to find the rev number where this problem started.