This fixes some issues with using boost's asio (which wrongly assumes _BSD_SOURCE implies that these things are available) following our change from -isystem to --sysroot. Test: Manual, check that we can build when using cfsetspeed on ICS. Bug: https://github.com/android-ndk/ndk/issues/302 Change-Id: Iab50221e4864f9a09a8fb00691252170eb6e8d09