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?

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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.

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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.