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-rw-r--r--include/my_time.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/my_time.h b/include/my_time.h
index 14726d3a01d..3c8f4274409 100644
--- a/include/my_time.h
+++ b/include/my_time.h
@@ -30,7 +30,13 @@ extern uchar days_in_month[];
/*
Portable time_t replacement.
- Should be signed and hold seconds for 1902-2038 range.
+ Should be signed and hold seconds for 1902 -- 2038-01-19 range
+ i.e at least a 32bit variable
+
+ Using the system built in time_t is not an option as
+ we rely on the above requirements in the time functions
+
+ For example QNX has an unsigned time_t type
*/
typedef long my_time_t;