* We also need to define a USED attribute, so the optimizer doesn't
* inline a static function that we later use in an alias. - ajax
*/
-#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303
+#if (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303) \
+ || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
# define PUBLIC __attribute__((visibility("default")))
# define USED __attribute__((used))
#else