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-rw-r--r--newlib/libc/time/mktime.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/newlib/libc/time/mktime.c b/newlib/libc/time/mktime.c
index 431eca568..80478dae9 100644
--- a/newlib/libc/time/mktime.c
+++ b/newlib/libc/time/mktime.c
@@ -48,9 +48,9 @@ ANSI C requires <<mktime>>.
#include <stdlib.h>
#include <time.h>
-#define _SEC_IN_MINUTE 60
-#define _SEC_IN_HOUR 3600
-#define _SEC_IN_DAY 86400
+#define _SEC_IN_MINUTE 60L
+#define _SEC_IN_HOUR 3600L
+#define _SEC_IN_DAY 86400L
static _CONST int DAYS_IN_MONTH[12] =
{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};