The GNU compiler kit uses a machine$-$independent register transfer language, RTL$,$as an intermediate language. The kit includes translators from several high$-$level languages $($such as C$,$C$++,$Pascal$)$into RTL$,$and translators from RTL into several machine codes $($such as Alpha, PPC$,$and SPARC$).$It also includes an RTL 'optimiser', i$.$e$.,$a program that translates RTL into more efficient RTL$.$All of these translators are expressed in C$.$a$)$Show how you would install these translators on a SPARC machine, given a C compiler for the SPARC. Now show how you would use these translators to: b$)$Compile a program P$,$expressed in Pascal, into SPARC machine code; c$)$Compile the same program, but using the RTL optimiser to generate more efficient object code; d$)$Cross$-$compile a program Q$,$expressed in C$++,$into PP machine code;e$)$Draw tombstones to represent the above components.