Build and Run ============= To build this very simple example, do something like this:: gfortran -c fortmyfunc.f90 gcc -c -std=c++11 myfunc.cpp gfortran fortmyfunc.o myfunc.o -o main -lstdc++ main The``-lstdc++`` is required to link in the c++ standard libraries Running ``main`` should yield something like:: 1 42.000000000000000 0.0000000000000000 1.0000000000000000 2.0000000000000000 3.0000000000000000 4.0000000000000000 5.0000000000000000 6.0000000000000000 7.0000000000000000 8.0000000000000000 9.0000000000000000 10.000000000000000 11.000000000000000 12.000000000000000 13.000000000000000 14.000000000000000 15.000000000000000 16.000000000000000 17.000000000000000 18.000000000000000 19.000000000000000 Compiling on Windows ==================== At the moment, the most reliable mixed compilation seems to be using the mingw-provided gfortran/gcc combination from mingw-get. These are the versions used as of June 20, 2014:: >gfortran --version GNU Fortran (GCC) 4.8.1 Copyright (C) 2013 Free Software Foundation, Inc. >gcc --version gcc (GCC) 4.8.1 Copyright (C) 2013 Free Software Foundation, Inc.