Fix libgpsd(3) so it's usable when ntpshm_init() has not been called.

While investigating this I discovered that part of a previous cange (moving an
ntpshm_put() call out of the NMEA driver) was incorrect and reverted it.

1 files changed, 2 insertions, 1 deletions

diff --git a/tsip.c b/tsip.c
index 6ca2107f..693f1f58 100644
--- a/tsip.c
+++ b/tsip.c
@@ -192,7 +192,8 @@ static gps_mask_t tsip_analyze(struct gps_device_t *session)
 	    session->gpsdata.sentence_time = gpstime_to_unix((int)s1, f1) - f2;
 
 #ifdef NTPSHM_ENABLE
-	    (void)ntpshm_put(session, session->gpsdata.sentence_time + 0.075);
+	    if (session->context->enable_ntpshm)
+		(void)ntpshm_put(session,session->gpsdata.sentence_time+0.075);
 #endif
 	    mask |= TIME_SET;
 	}