diff --git a/fortran.h b/fortran.h
new file mode 100644
index 0000000..29bf853
--- /dev/null
+++ b/fortran.h
@@ -0,0 +1,7 @@
+#ifdef FORTRAN_
+#define FORNAME(x) x##_
+#else
+#define FORNAME(x) x
+#endif
+
+#define FORTRAN_INT long