Build with newer ndk?

[danielcjacobs]

I'm trying to follow these steps but with a newer ndk (e.g. r23b), but it definitely requires doing some things differently. Currently stuck on:

repo forall -c git checkout ndk-r13-release

Tried to change to ndk-r23b, but it doesn't work. Seems to work for about half the repos, but for 10 of them it says ndk-r23b did not match any files known to git The latest version that I can get this command to work with is r21e.

Do I need repo for this? I've never used this tool before, so debugging is quite confusing.