For this section consider the following files:

$/*$ libfile$1.$h $*/$

int byn$($int a$,$ int n$)$;

$---$

$/*$ libfile$2.$h $*/$

int by$2($int a$)$;

$---$

$/*$ libfile$1.$cxx $*/$

#include "libfile$1.$h$"$

int byn$($int a$,$ int n$)\{$ return a$*$n; $\}$

$---$

$/*$ libfile$2.$cxx $*/$

#include "libfile$1.$h$"$

#include "libfile$2.$h$"$

int by$2($int a$)\{$ return byn$($a$,2)$; $\}$

int by$3($int a$)\{$ return byn$($a$,3)$; $\}$

Q$2.$ It is desired combine the code in the above files into a static library $($or $$archive$).$

$($a$)$ Which files need to be compiled? $[4]$

$($b$)$ Give the C$++$ compiler command which converts the source file to an object

file. $[2]$

$($c$)$ State the dependencies of each cxx file. $[6]$

$($d$)$ Using make syntax, write down the dependencies and action which will result

in the production of libfile$1.$o$.[5]$

$($e$)$ libfile$1.$h contains only the prototype of the byn function. Why is it included

by libfile$1.$cxx where the function is defined? $[2]$

$($f$)$ Describe a process by which header$-$file dependencies can be generated automatically as compilation progresses. You do not need to give specific commands

to achieve each step you describe.