Node: Interoperating with C and C++, Up: Other Languages

Tools and advice for interoperating with C and C++

The following discussion assumes that you are running g77 in f2c compatibility mode, i.e. not using -fno-f2c. It provides some advice about quick and simple techniques for linking Fortran and C (or C++), the most common requirement. For the full story consult the description of code generation. See Debugging and Interfacing.

When linking Fortran and C, it's usually best to use g77 to do the linking so that the correct libraries are included (including the maths one). If you're linking with C++ you will want to add -lstdc++, -lg++ or whatever. If you need to use another driver program (or ld directly), you can find out what linkage options g77 passes by running g77 -v.