Fix the case where neither vc nor sdk script exist or, vc doesn't work and sdk doesn't exist.
Fix the case where neither vc nor sdk script exist or, vc doesn't work and sdk doesn't exist.



git-svn-id: 7892167f69f80ee5d3024affce49f20c74bcb41d@4665 fdb21ef1-2011-0410-befe-b5e4ea1792b1

azverkan/scons,azverkan/scons,azverkan/scons,azverkan/scons,azverkan/scons