-#ifndef TIME64_CONFIG_H
-# define TIME64_CONFIG_H
+#ifndef PERL_TIME64_CONFIG_H_
+# define PERL_TIME64_CONFIG_H_
/* Configuration
-------------
#define SYSTEM_GMTIME_MAX CAT2(GMTIME_MAX,.0)
#define SYSTEM_GMTIME_MIN CAT2(GMTIME_MIN,.0)
-#endif /* TIME64_CONFIG_H */
+#endif /* PERL_TIME64_CONFIG_H_ */