Create and populate OS/2 EMX port build directory:

PC/os2emx/
    Makefile
    README.os2emx
    config.c
    dlfcn.c            // libdl emulation code for loadable extensions
    dlfcn.h
    dllentry.c         // DLL initialisation routine for Python DLL
    getpath.c
    pyconfig.h
    python23.def       // Python DLL symbol export definitions
    pythonpm.c         // console-less PM interpreter wrapper