From 62027f1b47ada22a910d02d7eb953d2e6a45bf84 Mon Sep 17 00:00:00 2001
From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Thu, 6 Jun 2013 16:30:37 +0200
Subject: [PATCH] Fix rounding in UTI_AddDoubleToTimeval with negative
 increments

---
 util.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/util.c b/util.c
index 3ae06d8..aedabeb 100644
--- a/util.c
+++ b/util.c
@@ -135,7 +135,8 @@ UTI_AddDoubleToTimeval(struct timeval *start,
      is too marginal here. */
 
   int_part = (long) increment;
-  frac_part = (long) (0.5 + 1.0e6 * (increment - (double)int_part));
+  increment = (increment - int_part) * 1.0e6;
+  frac_part = (long) (increment > 0.0 ? increment + 0.5 : increment - 0.5);
 
   end->tv_sec  = int_part  + start->tv_sec;
   end->tv_usec = frac_part + start->tv_usec;