COMPILER_VERSION — Compiler version stringCOMPILER_VERSION returns a string with the name and the
version of the compiler.
     ISO_FORTRAN_ENV
     STR = COMPILER_VERSION()
                  use iso_fortran_env
             print '(4a)', 'This file was compiled by ', &
                           compiler_version(), ' using the the options ', &
                           compiler_options()
             end