Makefile

In makefile the comment begins with the character

• /*

• //

• #

• $

In the makefile the target and dependencies are separated by the character

• -

• :

• @

• :=

Which one of the following provides all prerequisites in the makefile?

• $^

• $@

• $?

• $*

CLEAN = rm

LIBRARY = libutil

RM:

[tab]$(CLEAN) *.o *.out $(LIBRARY) core

What is CLEAN in above example

• Variable

• Prerequisite

• Target

• Both 1 and 3

CC = gcc

SRC := test1.c

SRC := test2.c

SRC := test3.c

Test : $(SRC)

[tab] $(CC) $^ -o $@

• gcc test1.c -o Test

• gcc test1.c test2.c test3.c

• gcc test1.c test2.c test3.c -o test

• None of the above

Which of the following is a phony target in below makefile

# Define required macros here

SHELL = /bin/sh

OBJS = main.o factorial.o hello.o

CFLAG = -Wall -g

CC = gcc

INCLUDE =

LIBS = -lm

clean:${OBJ}

[tab]${CC} ${CFLAGS} ${INCLUDES} $^ -o $@

hello:

[tab]rm -f *.o core *.core

.cpp.o:

[tab]${CC} ${CFLAGS} ${INCLUDES} -c $<

• hello

• clean

• .cpp.o

• None of the above

Which one of the following is used for the target file-name in the make-file?

• @

• $

• $@

• @$

If we want to execute the make-file by just giving the "make" command, make-file should be named as:

• Make file

• makefile

• MAKEFILE

• Both 1 and 2

Point out the error in below makefile

# Define required macros here

SHELL = /bin/sh

OBJS = main.o factorial.o hello.o

CFLAG = -Wall -g

CC = gcc

INCLUDE =

LIBS = -lm

clean:${OBJ}

[tab]${CC} ${CFLAGS} -I ${INCLUDES} $@ -o $^

hello:

[tab]rm -f *.o core *.core

.cpp.o:

[tab]${CC} ${CFLAGS} ${INCLUDES} -c $<

• clean:${OBJ}

• [tab]${CC} ${CFLAGS} -I ${INCLUDES} $@ -o $^

• [tab]${CC} ${CFLAGS} ${INCLUDES} -c $<

• No Error

output of below makefile when make command is executed.

.PHONY: all say_hello generate clean

all: say_hello generate

say_hello:

[tab]@echo "Hello World"

generate:

[tab]@echo "Creating empty text files..."

[tab]touch file-{1..10}.txt

clean:

[tab]@echo "Cleaning up..."

[tab]rm *.txt

• Creating empty text files...

  touch file-{1..10}.txt

• Hello World

  Creating empty text files...

  touch file-{1..10}.txt

• Cleaning up...

• Hello World

  Creating empty text files...

  touch file-{1..10}.txt

  Cleaning up...