From b473523a9c318de7c13d84fdb1eb06a4317ad42e Mon Sep 17 00:00:00 2001
From: "blizzard%redhat.com"
 <blizzard%redhat.com@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Fri, 20 Aug 1999 03:26:54 +0000
Subject: [PATCH] fix xlib timer bug.  this is not part of the build.

git-svn-id: svn://10.0.0.236/trunk@43774 18797224-902f-48f8-a5cc-f745e15eee43
---
 mozilla/widget/timer/src/unix/xlib/nsTimerXlib.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mozilla/widget/timer/src/unix/xlib/nsTimerXlib.cpp b/mozilla/widget/timer/src/unix/xlib/nsTimerXlib.cpp
index f53ae165afb..f5a47355eb1 100644
--- a/mozilla/widget/timer/src/unix/xlib/nsTimerXlib.cpp
+++ b/mozilla/widget/timer/src/unix/xlib/nsTimerXlib.cpp
@@ -271,7 +271,10 @@ int NS_TimeToNextTimeout(struct timeval *aTimer)
       return 1;
     }
     else {
-      aTimer->tv_sec -= timer->mFireTime.tv_sec;
+      if (aTimer->tv_sec < timer->mFireTime.tv_sec)
+        aTimer->tv_sec = timer->mFireTime.tv_sec - aTimer->tv_sec;
+      else 
+        aTimer->tv_sec = 0;
       // handle the overflow case
       if (aTimer->tv_usec < timer->mFireTime.tv_usec) {
         aTimer->tv_usec = timer->mFireTime.tv_usec - aTimer->tv_usec;