Linking IMSL libraries using C or STDCALL calling conventions?

[nuke]

Under Project | Properties dialog box in Fortran | External Procedures

when I set the Calling Convention to "Default" everything compiles fine, but LoadLibrary(...) fails from my C code. When I use "STDCALL, REFERENCE" or "C, REFERENCE", then the linker cannot find the IMSL libraries (because the linker appears to be translating the names).

In the exported function, I use

!DEC$ ATTRIBUTES C, DLLEXPORT::Clust

(and I've tried with STDCALL, too) and in the function that uses the IMSL libraries (MDA), I have tried both the static and DLL header files

INCLUDE 'link_f90_static.h'

or

INCLUDE 'link_f90_dll.h'

and it gives me the following error while linking.

CLUS2.obj : error LNK2019: unresolved external symbol _LINDS@20 referenced in function _MDA

Any ideas?

[Steven_L_Intel1]

I am confused as to what you are trying to do.

First, the IMSL routines use the compiler's default calling convention - for ifort, that's C, by reference (but not the same as your saying C, REFERENCE, as that lowercases the names! Nevertheless, if you use the IMSL modules in 9.0, you'll always get the right convention, and I would recommend this.

Your specifying an ATTRIBUTES directive for Clust affects only that name - it doesn't affect routines called from within Clust.

As for LoadLibrary, that itself doesn't do anything with routine names, just DLL file names. It's GetProcAddress that cares about the name, and then you will want to have declared the procedure pointer with __stdcall if that's what you'll be using.