cygwin在./configure报了个warning ，make时有2个error

./confihure时的cygwin warning: MS-DOS style path detected: C:\Users\blue_baby/.gyp Preferred POSIX equivalent is: /cygdrive/c/Users/blue_baby/.gyp CYGWIN environment variable option "nodosfilewarning" turns off this warning. Consult the user's guide for more details about POSIX paths: http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
make时的：/bin/sh: ml.exe: command not found

windows版的不是直接msi安装么？