Using find_package, we have identified the correct libraries to link to. As in the previous recipe, we need to make sure that our program can correctly call the functions they define. As in Chapter 3, Detecting External Libraries and Programs, Recipe 4, Detecting the BLAS and LAPACK math libraries, we face the problem of compiler-dependent name mangling of symbols. We use the FortranCInterface CMake module to check the compatibility of the selected C and C++ compilers with the Fortran compiler. We also use the FortranCInterface_HEADER function to generate a header file with macros to take care of name mangling of Fortran subroutines. This was achieved with the following code:
FortranCInterface_HEADER( fc_mangle.h MACRO_NAMESPACE ...
