[Zope] Zope 2.5.1 compile on AIX 4.3.3

Anyone seen this one? cc_r -O -I/usr/local/include/python2.1 -I/usr/local/include/python2.1 -DHAVE_CONFIG_H -I../Components/ExtensionClass/src -c ././../Components/ExtensionClass/src/ExtensionClass.c -o ./ExtensionClass.o 1500-030: (I) INFORMATION: subclass_ass_subscript: Additional optimization may be attained by recompiling and specifying MAXMEM option with a value greater than 2048. /usr/local/lib/python2.1/ld_so_aix cc_r -bI:/usr/local/lib/python2.1/python.exp ./ExtensionClass.o -o ./ExtensionClass.so /bin/sh: /usr/local/lib/python2.1/ld_so_aix: not found. make: 1254-004 The error code from the last command is 127.