Makefile not getting updated

Question

I have following files-

maze: maze.c
    gcc -o maze createMaze.c findcheese_iter.c maze.c -I.

Even after making changes to createMaze.c when I try running make command in the terminal,it says make: 'maze' is up to date. As a result I am not getting the correct answer.When I run the same code by this way it runs-

gcc createMaze.c maze.c  findcheese_iter.c -o exe

Typo: `createmaze.c` vs `createMaze.c` ; and that might explain everything! — Basile Starynkevitch, Feb 20 '15 at 12:55
No sry it isnt a typo,I wrote it wrong here.I have editted my question — , Feb 20 '15 at 12:56
Your `Makefile` is wrong. See [this one](http://stackoverflow.com/a/20146082/841108) for inspiration (but use `CC` instead of `CXX` etc...) — Basile Starynkevitch, Feb 20 '15 at 12:57

seeppp · Answer 1 · 2015-02-20T13:06:23.310

1

change your makefile to the following:

maze: maze.c createMaze.c findcheese_iter.c
    gcc -o maze createMaze.c findcheese_iter.c maze.c -I.

make will just compile, when the targets right behind the doublepoint changes...

edited Feb 20 '15 at 13:06

answered Feb 20 '15 at 12:59

seeppp

300
3
10

why not put `findcheese_iter.c` also in the dependency list? – Sourav Ghosh Feb 20 '15 at 13:01
While you're very right, I was just trying to make the point of the purpose for the dependency list. – Sourav Ghosh Feb 20 '15 at 13:05

score 0 · Accepted Answer · answered Feb 20 '15 at 13:07

As far as I can tell, your problem is that you have set the dependencies for maze to be only maze.c and when you update createMaze.c you are not updating any of the dependencies.

You should add all the files the output-binary actually depends on, to the depend list.

E.g.:

maze: createMaze.c findcheese_iter.c maze.c
    gcc -o maze createMaze.c findcheese_iter.c maze.c -I.

Makefile not getting updated

2 Answers2