diff --git a/asctime.c b/asctime.c
index 172a65b..48811a0 100644
--- a/asctime.c
+++ b/asctime.c
@@ -23,7 +23,8 @@ static char	elsieid[] = "%W%";
 /*
 ** Some systems only handle "%.2d"; others only handle "%02d";
 ** "%02.2d" makes (most) everybody happy.
-** At least some versions of gcc warn about the %02.2d; ignore the warning.
+** At least some versions of gcc warn about the %02.2d;
+** we conditionalize below to avoid the warning.
 */
 /*
 ** All years associated with 32-bit time_t values are exactly four digits long;
@@ -37,14 +38,22 @@ static char	elsieid[] = "%W%";
 ** The ISO C 1999 and POSIX 1003.1-2004 standards prohibit padding the year,
 ** but many implementations pad anyway; most likely the standards are buggy.
 */
+#ifdef __GNUC__
+#define ASCTIME_FMT	"%.3s %.3s%3d %2.2d:%2.2d:%2.2d %-4s\n"
+#else /* !defined __GNUC__ */
 #define ASCTIME_FMT	"%.3s %.3s%3d %02.2d:%02.2d:%02.2d %-4s\n"
+#endif /* !defined __GNUC__ */
 /*
 ** For years that are more than four digits we put extra spaces before the year
 ** so that code trying to overwrite the newline won't end up overwriting
 ** a digit within a year and truncating the year (operating on the assumption
 ** that no output is better than wrong output).
 */
+#ifdef __GNUC__
+#define ASCTIME_FMT_B	"%.3s %.3s%3d %2.2d:%2.2d:%2.2d     %s\n"
+#else /* !defined __GNUC__ */
 #define ASCTIME_FMT_B	"%.3s %.3s%3d %02.2d:%02.2d:%02.2d     %s\n"
+#endif /* !defined __GNUC__ */
 
 #define STD_ASCTIME_BUF_SIZE	26
 /*