15.3 Unix/Windows Portability
Unix and Windows are very different operating systems, with very
different APIs and functionality. However, it is possible to write
programs which run on both Unix and Windows, with significant extra work
and some sacrifice in functionality. For more information on how
GNU Autotools can help you write programs which run on both Unix and
Windows, see 25. Using GNU Autotools with Cygnus Cygwin.