Ok, so I got some time today.

I don't think crosscompiling is even necessary, everybody has an android device lying around that he can mess with right?
Well, it has to be a rooted Android device. (google can help you here.)
You need about 3Gb of free space on it to install LinuxDeploy, and configure a Debian jessie armhf linux. (Google here also)
Then install Connectbot and ssh into the linux that is now running on your handheld.
From here, follow the Mreadme.txt from
https://github.com/SpatariuMihail/kcolivas/blob/S9-bmm/Mreadme.txt And bonus: you can also compile the original Bmminer from Bitmain:
https://github.com/SpatariuMihail/bmminer-bitmaintech/blob/mymods/readme.txtThis is the best I can do for now.
DISCLAIMER, I have not tested the actual functionality of cgminer/bmminer from the above. I am NOT responsible for any harm, defects, downtime or whatever you can think of.
I am arround for questions, and help you as best as I can.
Regards,
Mihail