Python 2.2.1 vs. gcc 3.1?

[Andrew Koenig]

PPS: I tried building one of the .so files by hand, essentially by
snarfing the output from the Makefile log and executing it manually:

    $ gcc -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -I. -I/tmp/build-python/Python-2.2.1/./Include -I/usr/local/include -IInclude/ -c /tmp/build-python/Python-2.2.1/Modules/structmodule.c -o build/temp.solaris-2.8-sun4u-2.2/structmodule.o
    $ gcc -shared build/temp.solaris-2.8-sun4u-2.2/structmodule.o -L/usr/local/lib -o build/lib.solaris-2.8-sun4u-2.2/struct.so
    $ ldd build/lib.solaris-2.8-sun4u-2.2/struct.so
        libgcc_s.so.1 =>         /usr/gnu/lib/libgcc_s.so.1
        libc.so.1 =>     /usr/lib/libc.so.1
        libdl.so.1 =>    /usr/lib/libdl.so.1
        /usr/platform/SUNW,Ultra-5_10/lib/libc_psr.so.1

So apparently it is building a .so file with references correctly resolved.

How do I go about finding out the cause of the failure?