collectd-tg: Remove use of NAN.

This broke the build under Solaris, once again *sigh*.

collectd-tg.c: In function ‘dtime’:
collectd-tg.c:108:12: error: ‘NAN’ undeclared (first use in this function)
     return NAN;
            ^

diff --git a/src/collectd-tg.c b/src/collectd-tg.c
index 760162c..80473e0 100644 (file)
--- a/src/collectd-tg.c
+++ b/src/collectd-tg.c
@@ -105,7 +105,7 @@ static double dtime (void) /* {{{ */
   struct timespec ts = { 0 };
 
   if (clock_gettime (CLOCK_MONOTONIC, &ts) != 0)
-    return NAN;
+    perror ("clock_gettime");
 
   return ((double) ts.tv_sec) + (((double) ts.tv_nsec) / 1e9);
 } /* }}} double dtime */