Date: Wed, 25 Jul 2001 14:32:51 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender: eliz AT is
To: ANW <yellowfurball AT netscape DOT net>
cc: djgpp AT delorie DOT com
Subject: Re: Compile errors: getopt.h: no such file or dir (ENOENT), etc.
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On Wed, 25 Jul 2001, ANW wrote:

> > : ne2k-pci-diag.c:49: getopt.h: No such file or directory (ENOENT)
> > : ne2k-pci-diag.c:56: sys/io.h: No such file or directory (ENOENT)
> > : J:\junk>
> > 
> > DJGPP doesn't have those header files. DJGPP do have getopt() so
> > perhaps you can get away with #including unistd.h as per "info libc a
> > getopt".
> 
> In my installation of DJGPP, I DO have getopt.h and getopt.c residing in
> a directory called
> "g:\djgpp\gnu\filutil4.0\lib", and getopt.h also appears in the
> directory called "g:\djgpp\rsxntdj\include". It seems to me that my
> djgpp is not looking at those two directories. 

It doesn't look there, and it shouldn't: these directories are not part 
of the DJGPP development kit.  filutil4.0 is the ported GNU Fileutils 
package; rsxntdj is the RSXNTDJ package.  These, and others you might 
have on your system, are separate packages.  The headers you see there 
belong to those packages, and to them alone.

By contrast, the header files which you have in your g:\djgpp\include 
directory are part of the DJGPP standard C library.  The compiler looks 
only there, unless instructed differently with the -I command-line 
switch.  It would be wrong for the compiler to take header files from a 
package such as Fileutils, because those headers will certainly be wrong 
for anything _but_ Fileutils.  Here ``wrong'' means that the prototypes 
and macros on those headers might conflict with code in other packages.

In other words, the fact that you see a header file getopt.h does not yet 
mean that the contents of that file is what ne2k-pci-diag expects to find 
in that file.

> But I also see that the file io.h appears in the following three
> directories:
> 
>    g:\djgpp\include
>    g:\djgpp\rsxntdj\include
>    g:\djgpp\rsxntdj\include\emx
> 
> Are these of no help to my compilation?

I don't know.  As the first approximation, I'd suggest to #ifdef away 
both the line which includes getopt.h and the one which includes 
sys/io.h, like this:

#if 0
#include <getopt.h>
#endif

and see if the program compiles.