From 6ed93e577609c7d827cd6fc1b97c46498016df5d Mon Sep 17 00:00:00 2001
From: robertl <robertl@f51c46e8-681c-474f-0cfe-069cfd0219fb>
Date: Sat, 16 Jul 2005 16:45:24 +0000
Subject: [PATCH] Don't write negative alts.

---
 gpsbabel/gpsutil.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gpsbabel/gpsutil.c b/gpsbabel/gpsutil.c
index ae648d093..27d55563b 100644
--- a/gpsbabel/gpsutil.c
+++ b/gpsbabel/gpsutil.c
@@ -124,7 +124,8 @@ gpsutil_disp(const waypoint *wpt)
 		lat < 0.0 ? 'S' : 'N',
 		fabs(lon),
 		lon < 0.0 ? 'W' : 'E',
-		wpt->altitude == unknown_alt ? 0 : wpt->altitude,
+		((wpt->altitude == unknown_alt) || 
+		 (wpt->altitude < 0.0)) ? 0 : wpt->altitude,
 		'm', 
 		wpt->description ? tdesc : "",
 		icon_token);
-- 
2.30.2