Hi Dave,

The current atomic operations preprocessing is as follows.

#if defined(__SUNPRO_C)
#if defined (__SunOS_5_9)
// Atomic Operations are for Solaris 10 and above
#else
#include <sys/atomic.h>
#define __EIF_SUNPRO_C_ATOMOPS__
#endif
#endif

Does the Sun Studio C compiler on Linux include atomic.h?  The fix may be as simple as changing <sys/atomic.h> to just <atomic.h>.