I have some fortran routines that I'd like to call from C. I'm having trouble finding how to create a shared libarary and how to link to that library from C.
You might like to check the thread from anuraag in this forum. Then, see the Fortran User's Guide, "Libraries" and "Mixing C and Fortran" sections, and also the man pages for ld for how to use -shared to create a shared object.
