On Wed, Dec 11, 2013 at 09:07:38PM +0100, Marin Ramesa wrote: > On 11.12.2013 18:02:50, Richard Braun wrote: > > On Wed, Dec 11, 2013 at 05:30:43PM +0100, Marin Ramesa wrote: > > > - ipc_mqueue_t mqueue; > > > + ipc_mqueue_t mqueue = mqueue; /* Quiet GCC warning. */ > > > > Don't do that. Instead, tweak simple_unlock and similar functions > > this way : > > > > #define simple_unlock(l) ((void)(l)) > > Then I have to define decl_simple_lock_data() which means we end up > with a lot of unused locks. And simple_lock_try() needs to always > suceed with the value TRUE which means locks can't be initialized to > zero. > > It seems the best solution is to use #ifs for MACH_SLOCKS to declare > and set these unused variables.
GCC allows empty structures as an extension. -- Richard Braun
