androm3da · August 26, 2016 13:46
diff --git a/bar.c b/bar.c

 int foo(int x);

 int main(int argc, char *argv[])
 {
    return foo(argc) + foo(argc);
 }
diff --git a/foo.c b/foo.c

 int foo(int x)
 {
    return x+x;
 }
diff --git a/Makefile b/Makefile

 all: foo

 foo: foo.o bar.o

 .PHONY: clean all

 clean:
        $(RM) foo foo.o bar.o
diff --git a/sample_run.txt b/sample_run.txt
 $ make && ./foo ; echo $?
 cc    -c -o foo.o foo.c
 cc    -c -o bar.o bar.c
 cc   foo.o bar.o   -o foo
 4
 $ make clean
 rm -f foo foo.o bar.o