[empathy] Do not use math.h for trunc(). It is useless and it does not build because we don't link with -lm.

[Xavier Claessens <xclaesse src gnome org>]

commit 775ad4a575d720ef964d08e1ab12099da2f3af71
Author: Xavier Claessens <xclaesse gmail com>
Date:   Tue Sep 22 10:14:55 2009 +0200

    Do not use math.h for trunc(). It is useless and it does not build because we don't link with -lm.

 libempathy-gtk/empathy-location-manager.c |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/libempathy-gtk/empathy-location-manager.c b/libempathy-gtk/empathy-location-manager.c
index 2018b5c..17e40aa 100644
--- a/libempathy-gtk/empathy-location-manager.c
+++ b/libempathy-gtk/empathy-location-manager.c
@@ -21,10 +21,6 @@
 
 #include "config.h"
 
-/* Needed for trunc */
-#define _ISOC9X_SOURCE 1
-#define _ISOC99_SOURCE 1
-#include <math.h>
 #include <string.h>
 #include <time.h>
 
@@ -375,7 +371,7 @@ position_changed_cb (GeocluePosition *position,
 
       if (priv->reduce_accuracy)
         /* Truncate at 1 decimal place */
-        longitude = trunc (longitude * 10.0) / 10.0;
+        longitude = ((int) (longitude * 10)) / 10.0;
 
       new_value = tp_g_value_slice_new_double (longitude);
       g_hash_table_insert (priv->location, g_strdup (EMPATHY_LOCATION_LON),
@@ -391,7 +387,7 @@ position_changed_cb (GeocluePosition *position,
     {
       if (priv->reduce_accuracy)
         /* Truncate at 1 decimal place */
-        latitude = trunc (latitude * 10.0) / 10.0;
+        latitude = ((int) (latitude * 10)) / 10.0;
 
       new_value = tp_g_value_slice_new_double (latitude);
       g_hash_table_replace (priv->location, g_strdup (EMPATHY_LOCATION_LAT),