I'm trying to get the release22-maint branch to build on SCO Open Server 5. When setup.py fails to import an extention but the .c file compiles, how do you track down why it failed?

Ie. (lines formated for readability)

case $MAKEFLAGS in \ *-s*) CC='cc' LDSHARED='cc -G -Kpic -Ki486 -belf -Wl,-Bexport' \ OPT='-DNDEBUG -O -Ki486 -DSCO5' ./python \ -E /opt/src/utils/python/python-2.2.2/src/setup.py -q build;; \ *) CC='cc' LDSHARED='cc -G -Kpic -Ki486 -belf -Wl,-Bexport' \ OPT='-DNDEBUG -O -Ki486 -DSCO5' ./python \ -E /opt/src/utils/python/python-2.2.2/src/setup.py build;; \ esac running build running build_ext building 'struct' extension [snip] building 'pwd' extension cc -DNDEBUG -O -Ki486 -DSCO5 -Kpic -dy -Bdynamic -I. \ -I/opt/src/utils/python/python-2.2.2/src/./Include \ -I/usr/local/include -IInclude/ \ -c /opt/src/utils/python/python-2.2.2/src/Modules/pwdmodule.c \ -o build/temp.sco_sv-3.2-i386-2.2/pwdmodule.o cc -G -Kpic -Ki486 -belf -Wl,-Bexport \ build/temp.sco_sv-3.2-i386-2.2/pwdmodule.o -L/usr/local/lib \ -o build/lib.sco_sv-3.2-i386-2.2/pwd.so WARNING: removing "pwd" since importing it failed