
1.  Place '#include <os2undef.h>' at the top of your OS/2 header
    os2def.h or place it at the beginning of all your programs.
2.  You will be using your old OS/2 headers (as modified) together
    with os2port.lib to help get your build environment problems
    under control.
3.  The prototypes of the OS/2 functions are included for your
    edification.
    
4.  These files were tested with Charles Petzold's head.exe program in 
    Chapter 14 of 'Programming the OS/2 Presentation Manager'
    (Microsoft Press).
