TENTREDEF

Message        This <definition or tentative definition> of "<name>"
               is redefining the <definition or tentative
               definition> on <location>.  This is not allowed in
               C++.  <compiler__declare_tent_redef1>.

Description    C will allow a tentative definition to be redefined
               later in the compilation unit.  C++ does not have the
               concept of a tentative definition.  Therefore this
               redefinition is invalid in C++.

User Action    Either remove the previous tentative definition, or
               modify it to match the later redefinition.