From 8dc2b2d55625fabf26497a153c892af1d86a3f00 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Aug 16 2020 18:03:57 +0000
Subject: build system: ccenv: ccenv_find_tool(): further accommodate legacy shells.


---

diff --git a/sofort/ccenv/ccenv.sh b/sofort/ccenv/ccenv.sh
index a376eb7..b8a9219 100644
--- a/sofort/ccenv/ccenv.sh
+++ b/sofort/ccenv/ccenv.sh
@@ -122,7 +122,9 @@ ccenv_find_tool()
 {
 	if [ -z "$ccenv_prefixes" ]; then
 		for ccenv_candidate in $(printf '%s' "$ccenv_candidates"); do
-			if [ -z ${@:-} ]; then
+			ccenv_cmd_args="${@:-}"
+
+			if [ -z "$ccenv_cmd_args" ]; then
 				if command -v "$ccenv_candidate" > /dev/null; then
 					ccenv_tool="$ccenv_candidate"
 					return 0