Add protection in case some tool like StuffIt recursively did unpack all included tar files in the source tree.
Add protection in case some tool like StuffIt recursively did unpack
all included tar files in the source tree.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@16707 27541ba8-7e3a-0410-8455-c3a389f83636

bbannier/ROOT,dawehner/root,dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root,dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT