# else
# define _GLAPI_EXPORT __declspec(dllimport)
# endif
-# elif defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
+# elif defined(__GNUC__)
# define _GLAPI_EXPORT __attribute__((visibility("default")))
# else
# define _GLAPI_EXPORT