postgres
diff --git a/‎src/backend/utils/adt/timestamp.c
Copy file name to clipboardExpand all lines: src/backend/utils/adt/timestamp.c
+3Lines changed: 3 additions & 0 deletions b/‎src/backend/utils/adt/timestamp.c
Copy file name to clipboardExpand all lines: src/backend/utils/adt/timestamp.c
+3Lines changed: 3 additions & 0 deletions
diff --git a/‎src/timezone/localtime.c
Copy file name to clipboardExpand all lines: src/timezone/localtime.c
+6-5Lines changed: 6 additions & 5 deletions b/‎src/timezone/localtime.c
Copy file name to clipboardExpand all lines: src/timezone/localtime.c
+6-5Lines changed: 6 additions & 5 deletions
@@ -2008,6 +2008,9 @@ GetEpochTime(struct pg_tm *tm)
 
 	t0 = pg_gmtime(&epoch);
 
+	if (t0 == NULL)
+		elog(ERROR, "could not convert epoch to timestamp: %m");
+
 	tm->tm_year = t0->tm_year;
 	tm->tm_mon = t0->tm_mon;
 	tm->tm_mday = t0->tm_mday;
 
@@ -1328,13 +1328,14 @@ gmtsub(pg_time_t const *timep, int32 offset, struct pg_tm *tmp)
 	struct pg_tm *result;
 
 	/* GMT timezone state data is kept here */
-	static struct state gmtmem;
-	static bool gmt_is_set = false;
-#define gmtptr		(&gmtmem)
+	static struct state *gmtptr = NULL;
 
-	if (!gmt_is_set)
+	if (gmtptr == NULL)
 	{
-		gmt_is_set = true;
+		/* Allocate on first use */
+		gmtptr = (struct state *) malloc(sizeof(struct state));
+		if (gmtptr == NULL)
+			return NULL;		/* errno should be set by malloc */
 		gmtload(gmtptr);
 	}
 	result = timesub(timep, offset, gmtptr, tmp);