Re: testing for fortran 90 modules

[Rhys Ulerich]

> One of the simplest extensions is an intrinsic module called iso_fortran_env
> which can be included in a fortran program with the use statement.
> The test code would look like this,
>
> program test
> use iso_fortran_env
> write(*,*) 'hello'
> end program

As a nit, I'd use "use, intrinsic :: iso_fortran_env" as it forces
selection of an intrinsic module.  Though unlikely, your version could
be tripped up by the presence of another module named iso_fortran_env.

- Rhys