Hi,

I am having the same problem (unresolved external symbol _ISO_C_BINDING_mp_C_LOC) but I am using version 10.0.025.
I tried using /Zl flag but without success.
I mention that I am constructing a DLL library which this code.
Any advice?

Thanks,
Rak

Цитата:

newfortranuser wrote:

Hi again.

I am using IVF 11.1.060. I have Composer XE, but there are some
unrelated regressions already reported and blocking me from adopting it
yet. I need a solution for 11.1.060 which has passed our acceptance
testing.

If my main C++ application links with my Fortran static F.LIB, the C_LOC in my F.LIB works great.

But if my C++ DLL links with F.LIB, then I have a problem:

unresolved external symbol _ISO_C_BINDING_mp_C_LOC

So as suggested a few years ago in this forum by Steve Lionel, I built iso_c_binding.f90 from source and linked my C++ DLL with both my F.LIB and iso_c_binding.OBJ. The link completes without error. I have not tested runtime behavior yet.

Questions:

1. Does this sound right?
2. If this is the right/best solution for IVF 11.1.060?
3. What is the earliest release of IVF in which this issue is resolved?

Thanks!

You also need to link with ifmodintr.lib if you're not linking from Fortran and/or you specified /Zl.

Thanks Steve.

There is no file ifmodintr in my installation path: C:\Program Files (x86)\Intel\Compiler\Fortran\10.0.025\IA32\Lib.

I did a text search in all the library files for C_LOC and I found it in libifcoremt.lib. I used this library and the linker does not complain now. Still have to test the functionality.

Rak

Цитата:

Steve Lionel (Intel) wrote:

You also need to link with ifmodintr.lib if you're not linking from Fortran and/or you specified /Zl.

I forget which version we moved that routine to the new library - thought it was 11.1. If you find it in libifcoremt, then use that.