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education/software development/ECE1400/Chapter 15 Exercises.md
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@ -59,7 +59,8 @@ main.o: main.c f1.h
f1.o: f1.c f1.h
gcc -c f1.c
f2.o
f2.o: f1.o f2.c f2.h
gcc -c f2.c f1.o
```
---
@ -67,8 +68,12 @@ f2.o
> **6.** The following questions refer to the program described in Exercise 5.
> (a). Which files need to be compiled when the program is built for the first time?
`f1.c`, `f1.h`, `f2.c`, `f2.h`, `main.c`, `main.h`
> (b). If `f1.c` is changed after the program has been built, which files need to be recompiled?
All dependents of `f1.c` and `f1.c`, in this case `f1.c`, `main.c`, and `f2.c` (including header files).
> (c). If `f1.h` is changed after the program has been built, which files need to be recompiled?
> (d). If `f2.h` is changed after the program has been built, which files need to be recompiled?