From Gerri: Make sure that XROOTD_PRIVATE_INCLUDE_DIR is not undefined.
From Gerri:
Make sure that XROOTD_PRIVATE_INCLUDE_DIR is not undefined.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@49077 27541ba8-7e3a-0410-8455-c3a389f83636

bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT