The -fno-strict-aliasing flag was added to fix compilation warnings when
building Node.js with GCC <= 4.4

process.send() should be synchronous, it should block until the message
has been sent in full, but it wasn't after the second-to-last libuv
upgrade because of commit libuv/libuv@393c1c5 ("unix: set non-block
mode in uv_{pipe,tcp,udp}_open"), which made its way into io.js in
commit 07bd05b ("deps: update libuv to 1.2.1").

Commit libuv/libuv@b36d4ff ("unix: implement uv_stream_set_blocking()")
as landed in io.js in commit 9681fca ("deps: update libuv to 1.4.0")
makes it possible to restore the synchronous behavior again and that's
precisely what this commit does.

The same line of reasoning applies to `net.Socket({ fd: 1 })`: creating
a socket object from a stdio file descriptor, like the `process.stdout`
getter does, should put the file descriptor in blocking mode for
compatibility reasons.

PR-URL: nodejs/node#774
Reviewed-by: Trevor Norris <trev.norris@gmail.com>

Float patch to fix pipe on Windows. Original commit message:

  win: fix pipe blocking writes

  In the code path for pipe blocking writes, WriteFile is already
  posting a completion packet to the I/O completion port.
  POST_COMPLETION_FOR_REQ was causing the same request to get
  returned twice by GetCompletionStatusEx.
  Also on the same code path, we were waiting on the wrong event.

  We need to update queued_bytes and write_queue_size when a
  blocking write request completes asynchronously.

Ref: libuv/libuv#238

Float patch to fix setsockopt for multicast on Solaris and derivatives.
Original commit message:

  solaris: fix setsockopt for multicast options

  On Solaris and derivatives such as SmartOS, the length of socket options
  for multicast and ttl options is not always sizeof(char).

  This fixes the udp_options and udp_options6 tests.

Ref: libuv/libuv#243

Original commit message:

  darwin: fix size calculation in select() fallback

  Apple's `fd_set` stores its bits in an array of 32-bit integers, which
  means `FD_ISSET()` may read out of bounds if we allocate storage at
  byte granularity. There's also a chance that the `select()` call could
  corrupt the heap, although I didn't investigate that.

  This issue was discovered by LLVM's AddressSanitizer which caught
  `FD_ISSET()` trying to read out of bounds.

Ref: libuv/libuv#241

Because we are floating several patches on top of libuv, make that
apparent in the version number.