* src/atomic_ops.h (AO_compiler_barrier): Add parentheses and cast to
void.
/* FIXME - We dont know how to do this. This is a guess. */
/* And probably a bad one. */
static volatile int AO_barrier_dummy;
-# define AO_compiler_barrier() AO_barrier_dummy = AO_barrier_dummy
+# define AO_compiler_barrier() (void)(AO_barrier_dummy = AO_barrier_dummy)
# endif
#else
/* We conjecture that the following usually gives us the right */