From 26c3065c86a21b63672f844fa1b255596b2c3587 Mon Sep 17 00:00:00 2001
From: Magnus Lundborg <lundborg.magnus@gmail.com>
Date: Wed, 4 Dec 2013 15:53:11 +0100
Subject: Better way to update time of frame set.


diff --git a/src/lib/tng_io.c b/src/lib/tng_io.c
index f8a32cc..c0b3da9 100644
--- a/src/lib/tng_io.c
+++ b/src/lib/tng_io.c
@@ -17647,7 +17647,8 @@ tng_function_status DECLSPECDLLEXPORT tng_util_generic_with_time_write
     {
         return(stat);
     }
-    if(tng_data->current_trajectory_frame_set.first_frame == frame_nr)
+    /* first_frame_time is -1 when it is not yet set. */
+    if(tng_data->current_trajectory_frame_set.first_frame_time < -0.1)
     {
         stat = tng_frame_set_first_frame_time_set(tng_data, time);
     }
-- 
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