get_compiler_id Function

function get_compiler_id(compiler) result(id)
    character(len=*), intent(in) :: compiler
    integer(kind=compiler_enum) :: id

    character(len=:), allocatable :: full_command, full_command_parts(:), command, output
    integer :: stat, io

    ! Check whether we are dealing with an MPI compiler wrapper first
    if (check_compiler(compiler, "mpifort") &
        & .or. check_compiler(compiler, "mpif90") &
        & .or. check_compiler(compiler, "mpif77")) then
        output = get_temp_filename()
        call run(compiler//" -show > "//output//" 2>&1", &
            & echo=.false., exitstat=stat)
        if (stat == 0) then
            open(file=output, newunit=io, iostat=stat)
            if (stat == 0) call getline(io, full_command, stat)
            close(io, iostat=stat)

            ! If we get a command from the wrapper, we will try to identify it
            call split(full_command, full_command_parts, delimiters=' ')
            if(size(full_command_parts) > 0)then
               command = trim(full_command_parts(1))
            endif
            if (allocated(command)) then
                id = get_id(command)
                if (id /= id_unknown) return
            end if
        end if
    end if

    id = get_id(compiler)

end function get_compiler_id