am 4bf2ce27: SDK: Enforce GDK_NATIVE_WINDOWS=true for linux scripts

Merge commit '4bf2ce27a00c564daf0831c16769ee1ca259ddc7' into eclair

* commit '4bf2ce27a00c564daf0831c16769ee1ca259ddc7':
  SDK: Enforce GDK_NATIVE_WINDOWS=true for linux scripts