am 729503c2: am 848a2bc4: Merge "MinGW/Cygwin requires open() in O_BINARY mode." into gingerbread

Merge commit '729503c280e0d5b2621a8b7a6c93dd20fe1f5d0f'

* commit '729503c280e0d5b2621a8b7a6c93dd20fe1f5d0f':
  MinGW/Cygwin requires open() in O_BINARY mode.