Message 264280 - Python tracker

HAVE_GETHOSTBYNAME_R is defined on android API 21, but importing the _socket module fails with:

    ImportError: dlopen failed: cannot locate symbol "gethostbyaddr_r" referenced by "_socket.cpython-36m-i386-linux-gnu.so"

Patch attached.
The patch does not take into account the fact that this may be fixed in future versions of android.