my %module = ( darwin => 'Mac', MacOS => 'Mac', MSWin32 => 'Win32', os2 => 'OS2', VMS => 'VMS', epoc => 'Epoc', NetWare => 'Win32', # Yes, File::Spec::Win32 works on NetWare. symbian => 'Win32', # Yes, File::Spec::Win32 works on symbian. dos => 'OS2', # Yes, File::Spec::OS2 works on DJGPP. cygwin => 'Cygwin');