From 649fd9ecc0bbf1ea75cdc0b5e6b1a14146bf0dc9 Mon Sep 17 00:00:00 2001
From: Yi Zhang <starain.zhang@gmail.com>
Date: Mon, 15 Feb 2021 17:56:26 -0800
Subject: [PATCH] Check QEMU_BIN is not empty for cleanup_chroot, when building
 for same arch, QEMU_BIN would not be set, the condition fallsback to
 /usr/bin, which is executable

---
 lib.sh.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib.sh.in b/lib.sh.in
index 636d22c..e165d52 100644
--- a/lib.sh.in
+++ b/lib.sh.in
@@ -136,7 +136,7 @@ cleanup_chroot() {
     umount_pseudofs
 
     # If a QEMU binary was copied in, remove that as well
-    if [ -x "$ROOTFS/usr/bin/$QEMU_BIN" ] ; then
+    if [ -n "$QEMU_BIN" ] && [ -x "$ROOTFS/usr/bin/$QEMU_BIN" ] ; then
         rm "$ROOTFS/usr/bin/$QEMU_BIN"
     fi
 }