warnings in compile.log

[Chaffra Affouda]

I am seeing the following warnings when compiling with instant. But the swig interface seems to be implemented correctly. Any way to make them disappear?

C:\msys64\mingw64\include\dolfin\la\LinearAlgebraObject.h(37) : Warning 520: Derived class 'LinearAlgebraObject' of 'dolfin::Variable' is not similarly marked as a smart pointer.

C:\msys64\mingw64\include\dolfin\function\Function.h(64) : Warning 402: Base class 'Hierarchical< Function >' is incomplete.

C:\msys64\mingw64\include\dolfin\swig\function\pre.i(206) : Warning 402: Only forward declaration 'Hierarchical< Function >' was found.

C:\msys64\mingw64\include\dolfin\function\Function.h(66) : Warning 520: Derived class 'Function' of 'dolfin::GenericFunction' is not similarly marked as a smart pointer.

C:\msys64\mingw64\include\dolfin\function\Function.h(66) : Warning 520: Derived class 'Function' of 'ufc::function' is not similarly marked as a smart pointer.

C:\msys64\mingw64\include\dolfin\function\Function.h(66) : Warning 520: Derived class 'Function' of 'dolfin::Variable' is not similarly marked as a smart pointer.

C:\msys64\mingw64\include\dolfin\function\FunctionSpace.h(53) : Warning 402: Base class 'Hierarchical< FunctionSpace >' is incomplete.

C:\msys64\mingw64\include\dolfin\swig\function\pre.i(205) : Warning 402: Only forward declaration 'Hierarchical< FunctionSpace >' was found.