slu_ddefs.h et al. declaring BLAS functions

[wo80]

I'm currently trying to use SuperLU in a C++ project and I'm getting the following error (Visual Studio):

slu_ddefs.h(270,12): error C2733: 'dgemv_': you cannot overload a function with 'extern "C"' linkage

The problem is that the SuperLU declaration

extern int dgemv_(char *, int *, int *, double *, double *, int *,
                  double *, int *, double *, double *, int *);

doesn't match the declaration used in the C++ code

extern void dgemv_(const char*, const int *, const int *, 
                   const double *, const double *, const int *,
                   const double *, const int *, const double *,
                   double *y, const int *);

Same problem with c, s and z variants.

IMHO, the best solution would be to not have those BLAS functions in the public headers at all. Why should SuperLU be responsible for providing these?