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-rw-r--r--time/mktime.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/time/mktime.c b/time/mktime.c
index 652a0f2d4a..61b230833e 100644
--- a/time/mktime.c
+++ b/time/mktime.c
@@ -121,7 +121,7 @@ verify (long_int_is_wide_enough, INT_MAX == INT_MAX * (long_int) 2 / 2);
 #define TYPE_MAXIMUM(t) \
   ((t) (! TYPE_SIGNED (t) \
 	? (t) -1 \
-	: ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
+	: ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
 
 #ifndef TIME_T_MIN
 # define TIME_T_MIN TYPE_MINIMUM (time_t)