I am using cygwin and Visual Studio 2015 (update 1) along with Java 1.8 (release 74) in order to build the native code on Windows 10 64 bit (Home edition). It keeps failing on the libffi code build. I have tried various solutions suggested on the Internet, but none worked. I also tried using ant -DUSE_MVC=true to no avail. Is there some "verbose" switch I can turn on so I can see exactly why it fails (and attach it to this issue as well...)