Latest Zigbee Mesh Source code

You can download Z-Stack Mesh from http://www.ti.com/tool/z-stack

tool/zstack has an exe file. I am looking for the source code which I can compile with my app.

I have seen older and later versions of Zstack source code mentioned on this forum, but on extensive search of the site, could not find the link for Zstack mesh source.
Any way, if we compile the examples and load on the CC2530, will the Zstack be automatically linked / included, and will the examples work correctly, or do we need the Zstack source to compile and link with the examples?
I need to make a single-chip Zstack solution with my app, including Zstack on a single chip. Whether Zstack is binary or source does not make a difference to me, but it should be included when I make my app and load on the CC2530.