One of the reason libretroshare dependend on Qt on Android
and in particular in networking module is the lack of
`getifaddrs` with API level < 24, we included Android
Gingerbread internal implementation so this dependency can be avoided
at compile time.
The code depending on Qt has been placed under `#if` and can be enabled
at compile time by appending `DEFINES+=LIBRETROSHARE_ANDROID_IFADDRS_QT`
to `qmake` command line.
