From 74bdff4e79ef76be86133f35b58945469ca8c8c7 Mon Sep 17 00:00:00 2001
From: Ilya Zverev <zverik@textual.ru>
Date: Wed, 27 Dec 2017 19:02:03 +0300
Subject: [PATCH] [generator] Fix unbound OSC error

---
 tools/unix/generate_planet.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/unix/generate_planet.sh b/tools/unix/generate_planet.sh
index d4ed0628af..d21e13f592 100755
--- a/tools/unix/generate_planet.sh
+++ b/tools/unix/generate_planet.sh
@@ -359,7 +359,7 @@ if [ "$MODE" == "coast" ]; then
     if [ -n "$OPT_UPDATE" ]; then
       log "STATUS" "Step 1: Updating the planet file $PLANET"
       PLANET_ABS="$(cd "$(dirname "$PLANET")"; pwd)/$(basename "$PLANET")"
-      OSC_ABS="$(cd "$(dirname "$OSC")"; pwd)/$(basename "$OSC")"
+      [ -n "${OSC-}" ] && OSC_ABS="$(cd "$(dirname "${OSC-}")"; pwd)/$(basename "${OSC-}")"
       (
         cd "$OSMCTOOLS" # osmupdate requires osmconvert in a current directory
         ./osmupdate --drop-author --drop-version --out-o5m -v "$PLANET_ABS" "$PLANET_ABS.new.o5m"