Static Linking in Fortran

I've developed a module written in C++ that manages the licenses for my company's product. To prevent DLL replacement, it is our goal to staticall开发者_高级运维y link the DLL in the solution. This is very easy to do in C++ but proving to be a bit problematic for part of our codebase that is written in Fortran.

I realize that this could possibly vary from compiler to compiler (We use Intel Fortran 9.1), but is there any universal way to implement static linking of a C++ DLL within Fortran?

To get static linking, the usual way is not to use DLL but simple libraries instead (*.lib). This has nothing to do with programming languages : it just depends on the operating system.

Building a library is also simpler than building a DLL. On Unix, a library has the suffix .a whereas a DLL has a suffix .so (for shared object).

Nevertheless, it is often possible to link a DLL statically but this is obtained by a specific option passed to the linker. For instance on Unix, with many compiler suites, the option is either -static or -Bstatic. Look at the keyword "static" in your programming manual of your compilers.

If you have access to the source, just compile it to object files and link them into your Fortran project. ISO_C_BINDING should work on many compilers.