extern void *memmove(void *, const void *, size_t);
# endif // __cplusplus
-# define SG_COMPILER_STR "Sun compiler version " SG_STRINGIZE(__SUNPRO_CC)
+# if !defined( __GNUC__ )
+# define SG_COMPILER_STR "Sun compiler version " SG_STRINGIZE(__SUNPRO_CC)
+# endif
#endif // sun