Build without Cygwin

Hi.
Since NDK 7 (but it was really possible only with 7b which corrected a bug in ndk-buil.cmd), it is possible to build cocos2d-x without Cygwin.
I’ve created a small (and incomplete) batch file to test with the HelloWorld example.
But, it always compile cocos2d-x library before the project. If I want to start a full clean for the project HelloWorld, it also cleans the built library.
Is it possible to build the lib and the example independently?
(I don’t want to use Eclipse)