== DETAILS
For local netplay, it's useful to have your IP address easily
available. This commit makes the Information > Network Information
menu display the Wii U's IP address.
Change summary:
- Fix the logging init to be reentrant to avoid socket consumption
- Add implementation of POSIX `getifaddrs()` and `freeifaddrs()`
to `missing_libc_functions.c`
- Remove compiler directives protecting the code paths that call
`getifaddrs()` from being used in Wii U builds
== TESTING
Have tested locally, successfully get IP address information in
the Information > Network Information.
I think this may also fix NAT traversal. Will need to be tested.
MiniUPNPC 2.0 was a backwards-incompatible change (as .0s tend to be)
but configure detects them the same. This adds support for the changed
functions.
Adding NAT traveral interface to libretro-common, with (currently) a
backend support MiniUPNPC. Sensible future backends would be libupnp and
a direct implementation of PCP/NAT-PMP.
