add support for glib < 2.12

Copy the iso8601 function from glib to support versions less than 2.12.

1 files changed, 25 insertions, 2 deletions

diff --git a/src/ck-session.c b/src/ck-session.c
index bc3c07b..44eaa2f 100644
--- a/src/ck-session.c
+++ b/src/ck-session.c
@@ -301,6 +301,29 @@ ck_session_get_idle_hint (CkSession *session,
         return TRUE;
 }
 
+#if GLIB_CHECK_VERSION(2,12,0)
+#define _g_time_val_to_iso8601(t) g_time_val_to_iso8601(t)
+#else
+/* copied from GLib */
+static gchar *
+_g_time_val_to_iso8601 (GTimeVal *time_)
+{
+  gchar *retval;
+
+  g_return_val_if_fail (time_->tv_usec >= 0 && time_->tv_usec < G_USEC_PER_SEC, NULL);
+
+#define ISO_8601_LEN 	21
+#define ISO_8601_FORMAT "%Y-%m-%dT%H:%M:%SZ"
+  retval = g_new0 (gchar, ISO_8601_LEN + 1);
+
+  strftime (retval, ISO_8601_LEN,
+	    ISO_8601_FORMAT,
+	    gmtime (&(time_->tv_sec)));
+
+  return retval;
+}
+#endif
+
 gboolean
 ck_session_get_idle_since_hint (CkSession *session,
                                 char     **iso8601_datetime,
@@ -312,7 +335,7 @@ ck_session_get_idle_since_hint (CkSession *session,
 
         date_str = NULL;
         if (session->priv->idle_hint) {
-                date_str = g_time_val_to_iso8601 (&session->priv->idle_since_hint);
+                date_str = _g_time_val_to_iso8601 (&session->priv->idle_since_hint);
         }
 
         if (iso8601_datetime != NULL) {
@@ -474,7 +497,7 @@ ck_session_get_creation_time (CkSession      *session,
         g_return_val_if_fail (CK_IS_SESSION (session), FALSE);
 
         if (iso8601_datetime != NULL) {
-                *iso8601_datetime = g_time_val_to_iso8601 (&session->priv->creation_time);
+                *iso8601_datetime = _g_time_val_to_iso8601 (&session->priv->creation_time);
         }
 
         return TRUE;