In other words, the "No Makefile" problem was a 'short between the ears'. Thanks for the explanation.
There's only one make on the system (GNU v.4.2.1). It's from an RPM built by Bull as part of their freeware offerings and was probably built using IBM's XLC. Could that matter? I know some perl modules must be built with gcc and require a perl and some dependencies also be built with gcc (IO::Socket::SSL), which is why I need to build perl myself. I didn't think it would matter with make, though.
make links to make_32. make_64 exists but won't load because libgmp and libgcc can't be loaded - I haven't explored why yet. Is it possible I need to be using a 64 bit version of make? Not necessarily as a solution to the bad "w" flag - that doesn't seem relevant - just as a rule when building 64 bit applications?