ws2_32/socket.c: Fix compile for linux systems without net/ipx.h

[Felix Janda]

Bruno Jesus wrote:
> On Fri, Jun 13, 2014 at 2:14 PM, Felix Janda <felix.janda at posteo.de> wrote:
> > ...
> > Not defining HAS_IPX would also fix the compilation but I don't see
> > why one has to disable IPX because of 2 ipx specific constants not
> > declared in linux/ipx.h. (The 2 constants are also declared in an
> > kernel header not exported to userspace.)
> >
> > I'm not sure what's the best solution. I guess that one of the main
> > remaining uses of IPX in linux is to play old network games in wine.
> > Other possible solutions are for musl to include a netipx/ipx.h
> > header (unlikely, the headers are tried to be kept as clean as
> > possible) or declare the constants in sys/socket.h (maybe) or for
> > the kernel to include the constants in linux/ipx.h.
> 
> If the system does not #define the required variables to support IPX
> then I don't think it's right to manually define then and assume they
> will work. I'll download it and give it a try later.

The constants are only used for the [sg]etsockopt() system calls.
They are hardcoded in the linux kernel.

As stated above I'm open to alternative solutions than the patch.

Thanks for trying to reproduce the problem.

Felix