bison problems when compiling under win32

Hi - Thanks to whoever sent the link for instructions on how to compile under win32. Now I'm having another problem... bison is set to run bison --output=zend_language_parser.c -v -d -S "%CYGWIN%\share\bison.simple" -p zend zend_language_parser.y but it's giving me command line argument errors... the first one is something about "-S" not being a valid switch. I followed the instructions (I think)... then I went back and deleted everything and tried again to make sure and it still wouldn't work. If anybody can give me a clue on how to fix this I'd really appreciate it! Toby Butzon [ criticism spurs improvement ]