RIOT-OS/RIOT — pull request #1553 by Jentsch (2014-08-06 15:33:40+00:00)
Title: Fixing unit test build process

The unit tests failing currently on a clean master.

With the additional 'all' dependency it works fine.

To reproduce the error run:
```bash
git checkout master
make -C ./tests/unittests clean test BOARD=native
```