Author: Stan Eisenstat
Subject: Re: [Cs223] Deque.c compilation error
Date: Sunday, 29 Mar 2020, 16:23:49

    > Message Posted By: Unknown
    >
    > I have written Deque.c and I am trying to compile it using Makefile that
    > you have provided. I have included "#include "/c/cs223/Hwk4/Deque.h" " in
    > Deque.c but for some reason the program still does not compile and outputs
    > this message:
    >
    > undefined reference to `main'
    > collect2: error: ld returned 1 exit status
    >
    > There is no "main" in my Deque.c since it was not included in protoDeque.c
    > and my Qsort.c does not contain 'main' yet. Is there a way to compile and
    > test Deque.c before starting Qsort.c? Thank you.

To create an executable program one of the object files
must define the main() function.

Hwk4/Makefile includes rules to create an executable
from Deque.o and Hwk4/example.c or Hwk4/testDeque.c,
either of which can be used for testing.

--Stan-