Compilation error while using iso_c_binding in Mix-language code.

[D_Q__Y_]

I am trying to use the c_ptr and c_loc of the iso_c_binding module, but a compilation errer is reported: "undefined reference to `iso_c_binding_mp_c_loc_'"

The compile commands I ues are:
ifort -c sub.f90
icc -c main.c
icc main.o sub.o 
And here follows my code.

 module try_ptr
 contains
    subroutine test() bind(c)
    use iso_c_binding,only : c_loc,c_ptr,c_int
    implicit none
    type(c_ptr) :: mptr
    integer(c_int) :: mj(10)
    mptr=c_loc(mj(1))
    return
    end subroutine test
end module try_ptr

#include <stdio.h>
int main()
 {
   printf("test\n");
 }

[Heinz_B_Intel · Accepted solution]

Try:

icc -c main.c

ifort -nofor_main sub.f90 main.o

See description of option '-nofor_main' in compiler guide: It will make sure, the Fortran run time libraries are linked in while expecting  the main program not being  implemented in your Fortran code. This is the structure of your application

[D_Q__Y_]

This works out, thanks.

HeinzB (Intel) wrote:

Try:

icc -c main.c

ifort -nofor_main sub.f90 main.o

See description of option '-nofor_main' in compiler guide: It will make sure, the Fortran run time libraries are linked in while expecting  the main program not being  implemented in your Fortran code. This is the structure of your application