setdevenv.sh: do not use unbound variables

qjk-redlands · Oct 11, 2023 · e41f6fc · e41f6fc
1 parent f3bc13d
commit e41f6fc
Showing 1 changed file with 8 additions and 8 deletions.
diff --git a/scripts/setdevenv.sh b/scripts/setdevenv.sh
@@ -38,30 +38,30 @@ if [[ ! ${PATH} =~ $CUR_DIR/apps ]]; then
 fi
 
 if [[ "$(uname -s)" == "Darwin" ]]; then
-    if [[ ! "${DYLD_LIBRARY_PATH}" =~ $CUR_DIR ]]; then
-        export DYLD_LIBRARY_PATH="$CUR_DIR:$DYLD_LIBRARY_PATH"
+    if [[ ! "${DYLD_LIBRARY_PATH:-}" =~ $CUR_DIR ]]; then
+        export DYLD_LIBRARY_PATH="$CUR_DIR:${DYLD_LIBRARY_PATH:-}"
         echo "Setting DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH"
     fi
 else
-    if [[ ! "${LD_LIBRARY_PATH}" =~ $CUR_DIR ]]; then
-        export LD_LIBRARY_PATH="$CUR_DIR:$LD_LIBRARY_PATH"
+    if [[ ! "${LD_LIBRARY_PATH:-}" =~ $CUR_DIR ]]; then
+        export LD_LIBRARY_PATH="$CUR_DIR:${LD_LIBRARY_PATH:-}"
         echo "Setting LD_LIBRARY_PATH=$LD_LIBRARY_PATH"
     fi
 fi
 
-if [[ ! ${GDAL_DRIVER_PATH} =~ $CUR_DIR/gdalplugins ]]; then
+if [[ ! ${GDAL_DRIVER_PATH:-} =~ $CUR_DIR/gdalplugins ]]; then
     export GDAL_DRIVER_PATH="$CUR_DIR/gdalplugins"
     echo "Setting GDAL_DRIVER_PATH=$GDAL_DRIVER_PATH"
 fi
 
-if [[ ! "${GDAL_DATA}" =~ $GDAL_ROOT/data ]]; then
+if [[ ! "${GDAL_DATA:-}" =~ $GDAL_ROOT/data ]]; then
     export GDAL_DATA="$GDAL_ROOT/data"
     echo "Setting GDAL_DATA=$GDAL_DATA"
 fi
 
 GDAL_PYTHONPATH="$CUR_DIR/swig/python"
-if [[ ! "${PYTHONPATH}" =~ $GDAL_PYTHONPATH ]]; then
-    export PYTHONPATH="$GDAL_PYTHONPATH:$PYTHONPATH"
+if [[ ! "${PYTHONPATH:-}" =~ $GDAL_PYTHONPATH ]]; then
+    export PYTHONPATH="$GDAL_PYTHONPATH:${PYTHONPATH:-}"
     echo "Setting PYTHONPATH=$PYTHONPATH"
 fi
 unset GDAL_PYTHONPATH