guard against one more absent env-var
@@ -176,7 +176,7 @@ codename="$(awk -F ": " "\$1 == \"Codename\" { print \$2; exit }" "$outputDir/Re
touch_epoch "$targetBase.sources-list-snapshot"
local tarArgs=()
- if [ -n "$qemu" ]; then
+ if [ -n "${qemu:-}" ]; then
tarArgs+=( --exclude="./usr/bin/qemu-*-static" )
fi
