From db0c30af0b5836ffa75d49890edbbdd39495b373 Mon Sep 17 00:00:00 2001
From: ellson <devnull@localhost>
Date: Fri, 28 Jan 2005 16:07:59 +0000
Subject: [PATCH] avoids one case of the -O2 bug with icc81 and its a
 reasonable optimization.

---
 lib/pathplan/route.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/pathplan/route.c b/lib/pathplan/route.c
index 4633a2811..80892fdb6 100644
--- a/lib/pathplan/route.c
+++ b/lib/pathplan/route.c
@@ -505,9 +505,11 @@ static Pvector_t normv(Pvector_t v)
 {
     double d;
 
-    d = sqrt(v.x * v.x + v.y * v.y);
-    if (d != 0)
+    d = v.x * v.x + v.y * v.y;
+    if (d > 1e-6) {
+	d = sqrt(d);
 	v.x /= d, v.y /= d;
+    }
     return v;
 }
 
-- 
2.40.0