+ /* Set the time zone to US Eastern time with the 2012 rules. This
+ should disable any leap second support. Otherwise, there will be
+ a problem with glibc on sites that default to leap seconds; see
+ <http://bugs.gnu.org/12206>. */
+ setenv ("TZ", "EST5EDT,M3.2.0,M11.1.0", 1);
+
+ gmtoff = gmt_offset (ref_time);