Re: [PATCH 0/1] MR1015: wpcap: use UNIX 98/BSD 4.4 sockaddr header

[Jinoh Kang (＠iamahuman)]

Jinoh Kang (@iamahuman) commented about dlls/wpcap/unixlib.h:
> struct sockaddr_hdr
>  {
> - unsigned short sa_family;
> - unsigned char sa_len;
> - unsigned char sa_family;

We should check BSD variants instead, like this:

```
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__APPLE__)
```

Another option would be to check the existence of `sa_len` in `struct sockaddr` via autoconf, but glibc doesn't seem to do that.