make.sh: Change execute() so that it can be used outside the namespaces, too

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

make.sh

@@ -652,14 +652,8 @@ lfsmakecommoncheck() {
 }
 
 execute() {
-	# Check if we are running in our namespace
-	if [ -z "${IN_NAMESPACE}" ]; then
-		exiterror "Not running in namespace"
-	fi
-
-	local command=()
-
 	local chroot="false"
+	local command=()
 	local interactive="false"
 	local timer
 
@@ -717,8 +711,11 @@ execute() {
 		[TOOLS_DIR]="${TOOLS_DIR}"
 	)
 
+	local unshare=()
+
 	# Configure a new namespace
-	local unshare=(
+	if [ -n "${IN_NAMESPACE}" ]; then
+		unshare+=(
 			# Create a new cgroup namespace
 			"--cgroup"
 
@@ -743,6 +740,7 @@ execute() {
 			# If unshare is asked to terminate, terminate all child processes
 			"--kill-child"
 		)
+	fi
 
 	while [ $# -gt 0 ]; do
 		case "${1}" in
@@ -848,9 +846,11 @@ execute() {
 	local env
 
 	# Create new namespaces
+	if [ "${#unshare[@]}" -gt 0 ]; then
 		execute+=(
 			"unshare" "${unshare[@]}"
 		)
+	fi
 
 	# Run in chroot?
 	if [ "${chroot}" = "true" ]; then