typedef problem

Hello, I have 3 header files and 1 .c file.

The .c file #includes both header files.

In the 2 header files, there are extern definitions of of a struct:

header1.h:

Code:

---

#include "types.h"

extern struct a
{
    mytype a;
    ....
} myStructA;

---

header2.h:

Code:

---

#include "types.h"

extern struct b
{
      mytype b;
      .....
} myStructB

---

types.h

Code:

---

typedef int mytype;

---

mycfile.c

Code:

---

#include "header1.h"
#include "header2.h"

struct myStructA;
struct myStructB;

int main()
{
  ....
}

---

My issue is that gcc keeps complaining about a redefinition of typedef mytype. I understand what this means since I #include types.h in both headers. I need to do this since both headers use mytype in their stucts. Is there any way around this?

Use inclusion guards.

if it is microsoft, you can use
#pragma once

That pragma does not work very well for inclusion guards.
And the struct shouldn't be "extern" either. It's a declaration.