https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785736#M29953 Which version of IVF first included the ISO_C_BINDING module? Can it be retrofitted to 11.0.072?<BR /><EDIT><BR />Looking in the IVF install directory, I see the file iso_c_binding.f90, implying that indeed the module is present. But 'use iso_C_binding' gives an error:<BR /><BR />Error in opening the compiled module file. Check INCLUDE paths. [ISO_C_BINDING]<BR /><BR />What am I missing?<BR /><BR />Thanks.</EDIT> Tue, 16 Nov 2010 02:48:22 GMT gib 2010-11-16T02:48:22Z https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785736#M29953 Which version of IVF first included the ISO_C_BINDING module? Can it be retrofitted to 11.0.072?<BR /><EDIT><BR />Looking in the IVF install directory, I see the file iso_c_binding.f90, implying that indeed the module is present. But 'use iso_C_binding' gives an error:<BR /><BR />Error in opening the compiled module file. Check INCLUDE paths. [ISO_C_BINDING]<BR /><BR />What am I missing?<BR /><BR />Thanks.</EDIT> Tue, 16 Nov 2010 02:48:22 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785736#M29953 gib 2010-11-16T02:48:22Z https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785737#M29954 Well, I found the answer (RTFM). This is what is needed:<BR /><BR />use, intrinsic :: ISO_C_binding<BR /><BR /> Tue, 16 Nov 2010 06:33:59 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785737#M29954 gib 2010-11-16T06:33:59Z https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785738#M29955 USE ISO_C_binding<BR /><BR />should have worked. This has been in the product since 10.0. Of course, adding the INTRINSIC is a good idea regardless. Wed, 17 Nov 2010 00:24:19 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785738#M29955 Steven_L_Intel1 2010-11-17T00:24:19Z https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785739#M29956 Beats me Steve. The code compiled with the simple USE statement on 11.0.075, but gave that error on 11.0.072. I can't imagine what else could have been the problem - certainly no INCLUDE directories needed to be set. Wed, 17 Nov 2010 01:54:32 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785739#M29956 gib 2010-11-17T01:54:32Z https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785740#M29957 Do you have an ISO_C_BINDING.mod file in your Debug or Release folder or in any include path? Wed, 17 Nov 2010 19:56:05 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/ISO-C-BINDING/m-p/785740#M29957 Steven_L_Intel1 2010-11-17T19:56:05Z