[parrot/parrot] 38eef0: [core] fix atomic/gcc_x86.h --without-threads

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/parrot/parrot
  Commit: 38eef0895b95c4da4fbaa0b7a44b5362f4b78198
      https://github.com/parrot/parrot/commit/38eef0895b95c4da4fbaa0b7a44b5362f4b78198
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2015-01-21 (Wed, 21 Jan 2015)

  Changed paths:
    M include/parrot/atomic.h
    M include/parrot/atomic/gcc_x86.h

  Log Message:
  -----------
  [core] fix atomic/gcc_x86.h --without-threads

atomic.h already provides these fallback declarations