Link errors with /warn:interfaces

I have started getting link errors when I have /warn:interfaces turned on. All the errors are of the form

 error LNK2019: unresolved external symbol __imp_XXXX referenced in function YYYY

The link error occurs when building a C++ dll using the .lib file from the Fortran build. I haven't been able to find any work round other than turning off /warn:interfaces. Does anyone know why I'm getting this error or how to fix it so that I can use /warn:interfaces. This is with VS2010 + Intel(R) Visual Fortran Compiler XE 14.0.1.139 [Intel(R) 64]

Thanks,

Simon