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+CMP0007
+-------
+
+list command no longer ignores empty elements.
+
+This policy determines whether the list command will ignore empty
+elements in the list. CMake 2.4 and below list commands ignored all
+empty elements in the list. For example, a;b;;c would have length 3
+and not 4. The OLD behavior for this policy is to ignore empty list
+elements. The NEW behavior for this policy is to correctly count
+empty elements in a list.
+
+This policy was introduced in CMake version 2.6.0. CMake version
+|release| warns when the policy is not set and uses OLD behavior. Use
+the cmake_policy command to set it to OLD or NEW explicitly.