Better way to avoid glibc dependency.

Returns us to something amost identical to the original code.
Sigh.  Timezones are a swamp.

All regression tests pass.

1 files changed, 1 insertions, 1 deletions

diff --git a/timebase.c b/timebase.c
index 2aff11cc..7c790c06 100644
--- a/timebase.c
+++ b/timebase.c
@@ -272,7 +272,7 @@ timestamp_t gpsd_utc_resolve(/*@in@*/struct gps_device_t *session)
      */
     timestamp_t t;
 
-    t = (timestamp_t)timegm(&session->nmea.date) +
+    t = (timestamp_t)mkgmtime(&session->nmea.date) +
 	session->nmea.subseconds;
     session->context->valid &=~ GPS_TIME_VALID;