What is the official way to deal with string in C++/FORTRAN interop

I'd like to learn the latest improvement in C++/FORTRAN interoperability when it comes to string in particular. The following is my unsuccessful attempt, please help me correct or advise a better solution. My compiler is gcc 4.8.5

In C++

#include <iostream>

extern "C"{
    void SayHello(char*);
}
int main(int argc, char** argv){
    char * name = argv[1];
    SayHello(name);
    return 0;
}

In Fortran

module MyModule

      contains
          subroutine SayHello(people) bind(c,name="SayHello")
              use, intrinsic :: iso_c_binding
              character, dimension(50), intent(in) :: people
              write(*,*) "Hello ", people
          end subroutine
end module MyModule