I'm trying to add some new functions from a c++ library to one of my existing fortran projects. The library compiles and builds fine, but when I go to link I get errors that I don't understand where they come from and am hoping someone else does. Maybe there is some additional system library that I have to add to the linker commands that isn't automatic? Library is built using icc. So why does it think all the std::string functions are undefined as shown in the attached picture.
