wrapper: pass runtime settings down here

Previously we set these variables in the generated config, but that meant
things did not adapt on the fly to changing behavior.  So if you tried to
move the code from one user to another, you'd have to regenerate things.
Instead, just detect it from the active env.  This makes things a little
more robust as well.

BUG=24614250
TEST=building packages works w/out errors

Change-Id: I563fef50d9e15c19769b570e33e8688d425521ec
1 file changed
tree: 64d20c412dc4ca78c2346a73cd58e2e95fd8415d
  1. .gitignore
  2. etc/
  3. setup_board
  4. usr/
  5. wrapper.py