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A4: main.o testA4.o helper.o miscFunctions.o queueFunctions.o headerA4.h
    gcc -Wall -std=c99 main.o testA4.o helper.o miscFunctions.o queueFunctions.o

main.o: main.c headerA4.h
    gcc -Wall -std=c99 -c main.c -o main.o

testA4.o: testA4.c headerA4.h
    gcc -Wall -std=c99 -c testA4.c -o testA4.o

helper.o: helper.c headerA4.h
    gcc -Wall -std=c99 -c helper.c -o helper.o

miscFunctions.o: miscFunctions.c headerA4.h
    gcc -Wall -std=c99 -c miscFunctions.c -o miscFunctions.o

queueFunctions.o: queueFunctions.c headerA4.h
    gcc -Wall -std=c99 -c queueFunctions.c -o queueFunctions.o

clean:
    rm *.o

This is my make file but when I compile it this happens-

zali05@ginny:~/A4$ make
gcc -Wall -std=c99 main.o testA4.o helper.o miscFunctions.o queueFunctions.o
zali05@ginny:~/A4$ A4
bash: A4: command not found
zali05@ginny:~/A4$ A4:
bash: A4:: command not found
zali05@ginny:~/A4$ ./A4
bash: ./A4: No such file or directory
zali05@ginny:~/A4$ ./a.out
Begining A4 Program Testing...
Creating Initial List...
Enter a username:

It works with ./a.out

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1 Answer 1

Reset to default
4

The link/load command is missing the -o A4 option. You might want to write it as -o $@. Similarly, you might write the object list in the command as $^, causing GNU make to copy the dependency list. (Alas, not all makes have this feature.)

Make will also provide a pattern for the compiles. You could set CFLAGS and optionally CC and omit all the compile commands.

Also, you misformated the first line of your makefile when posting here.

Just to provide a complete result, if I were writing this makefile (and not using automake or makedepend (use one!), and targeting to not be GNU make specific), I would probably write:

A4_OBJS = main.o testA4.o helper.o miscFunctions.o queueFunctions.o 

CC = gcc
CFLAGS = -Wall -std=c99

A4 : ${A4_OBJS}
        ${CC} ${CFLAGS} ${LDFLAGS} -o $@ ${A4_OBJS}

main.o : main.c headerA4.h
testA4.o : testA4.c headerA4.h
helper.o : helper.c headerA4.h
miscFunctions.o : miscFunctions.c headerA4.h
queueFunctions.o : queueFunctions.c headerA4.h

clean :
        rm *.o A4
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4
  • 1
    A link to some source on make's $@, $^ and such could be useful, if you have one at hand. Commented Apr 7, 2021 at 14:54
  • 1
    @ilkkachu Gnu make manual at: gnu.org/software/make/manual Automatic variables at: gnu.org/software/make/manual/html_node/… Commented Apr 7, 2021 at 17:51
  • Thank You!!! :D Commented Apr 8, 2021 at 22:31
  • @ZainAli: you are quite welcome. If this is a good answer for you, you might want to "accept" it. (You should read the tour at unix.stackexchange.com/tour for more information (and your first badge).) Commented Apr 8, 2021 at 23:58

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