Thread: linking .o from another directory with makefile

Originally Posted by GReaper

Where do you call make from? File names have to be relative to the makefiles position.

I'm calling make from the getanumber dir.

Originally Posted by GReaper

So, obviously, getch.o( and everything else not in that directory ), need to be prefixed with the relative or absolute path, eg:
../mainop/getch.o

Sorry, I didn't understand. You mean I need to include all the .c? but I just need the .o of getch.c since the getanumber.c only use two functions from this source. Hum, the header calc.h declares the functions of getch.c and the others functions that are inside mainop directory. Still, I'd like to compile getch only.

I tried some variations but it didn't work. gcc -I ../mainop -o maingetanumber getanumber.o -include ../mainop/getch.o -Wall -pedantic

Code:

 
  maingetanumber : getanumber.o getch.o
    gcc -include ../mainop/getch.o -o maingetanumber getanumber.o -Wall -pedantic

getanumber.o : getanumber.c
    gcc -I ../headers -c getanumber.c

Code:

 
  maingetanumber : getanumber.o getch.o
     gcc -I ../mainop -o maingetanumber getanumber.o ../mainop/getch.o -Wall -pedantic
 
 getanumber.o : getanumber.c
     gcc -I ../headers -c getanumber.c

Code:

gcc -I ../mainop -o maingetanumber getanumber.o -include ../mainop/getch.o -Wall -pedantic