From 33d26e8a74ddddfc54c3f864196986d8d3926e9e Mon Sep 17 00:00:00 2001
From: robertl <robertl@f51c46e8-681c-474f-0cfe-069cfd0219fb>
Date: Sat, 31 Jul 2004 17:00:36 +0000
Subject: [PATCH] Write unknown alts as zero.

---
 gpsbabel/garmin.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gpsbabel/garmin.c b/gpsbabel/garmin.c
index 26e425f67..b2c22b026 100644
--- a/gpsbabel/garmin.c
+++ b/gpsbabel/garmin.c
@@ -464,7 +464,9 @@ waypoint_write(void)
 			icon = d103_icon_number_from_symbol(wpt->icon_descr);
 		}
 		way[i]->smbl = icon;
-		if (wpt->altitude != unknown_alt) {
+		if (wpt->altitude == unknown_alt) {
+			way[i]->alt = 0;
+		} else {
 			way[i]->alt = wpt->altitude;
 		}
 		i++;
-- 
2.30.2