[cs631apue] Confusing with header files

[yluo4]

On 09/23/2013 11:47 PM, kwang9 wrote:
> Dear all,
> 
> I have these files,
> 
> common.h:
> #include <sys/types.h>
> #include <sys/stat.h>
> #include <unistd.h>
> ...
> 
> print.h:
> #include "common.h"
> ...
> 
> print.c:
> ...
> ...S_IFMT...
> ...
> 
> It compiles fine on my Mac, while ERROR! on linux-lab:
> error: ‘S_IFMT’ undeclared (first use in this function)
> 
> Could anyone tell my why please...
> 
> Sincerely,
> Kai
> 
> 
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Do you include "print.h" in print.c?