Cmake refuse to build release in external folder

I have fresh git version of CDDA (2016-07-19).
my folder structure:
src

  • !build/cataclysm
  • Cataclysm-DDA

in !build/cataclysm folder I start .r.sh which have:
cmake …/…/Cataclysm-DDA -DCMAKE_BUILD_TYPE=Release

it seems that cmake totally ignore build_type. I’ve try variations:
cmake -DCMAKE_BUILD_TYPE=Release …/…/Cataclysm-DDA
etc.
but in vain.

it seems now I can build release only by make or by manually setting cmake files.
am I wrong?