[Olivier Guilyardi] >On 12/17/2009 01:03 PM, Tim Blechmann wrote: >>> +#if defined(__APPLE__) >>> +#include <libkern/OSAtomic.h> >>> +#define MEMORY_BARRIER() OSMemoryBarrier() >>> +#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) >>> +#define MEMORY_BARRIER() __sync_synchronize() >>> +#else >>> +#warning SMP Danger: memory barriers are not supported on this system >>> +#endif
I may be wrong but if neither __APPLE__ nor __GNUC__ >= 4.1 are true shouldn't MEMORY_BARRIER() at least be an empty define to keep cpp happy? After all, your #warning statement seems to indicate you don't want compilation to fail. Cheers, Tim _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
