On Fri, Jul 25, 2008 at 3:16 AM, jpff <jpff@codemist.co.uk> wrote:
> ....Really this belongs on the csound-dev list but as it started
> here....
>
> In remote.c the code reads
> #ifdef LINUX
> #include <linux/if.h>
> #include <arpa/inet.h>
> #endif
> #include <net/if.h>
>
> and this works on SuSE, Debian and Fedora (at least).  However on
> gentoo the file <linux/if.h> is frankly incomprensible
>
> #ifndef _LINUX_IF_H
> # include <net/if.h>
> # define _LINUX_IF_H
> #endif
>
> #ifndef _LINUX_IF_H
> #define _LINUX_IF_H

my if.h does not have:

#ifndef _LINUX_IF_H
# include <net/if.h>
# define _LINUX_IF_H
#endif

but it does have:

#ifndef _NET_IF_H
#define _NET_IF_H	1

but that's the only place it shows up on if.h. It's not used in the
rest of the file.

> .....
>
> So as _LINUX_IF_H is not set it reads <net/if.h>, and then sets the
> variable so it ignores the rest of the file.
> I really suspect that the first #ifndef should use _NET_IF_H but it
> does not.  I cannot see how one can use thee headers.

Why would it ignore the rest of the file? It only defines
'_LINUX_IF_H', and nothing more. there is no else after the
definition.

It looks like '#ifdef __USE_MISC' is the culprit as struct ifreq is
included in this #define. I don't know what __USE_MISC is.

brad