From a1fc4b5ead6e6e4165288987122d0d735a1740cc Mon Sep 17 00:00:00 2001
From: Gilles Peskine <Gilles.Peskine@arm.com>
Date: Sun, 6 Jan 2019 20:15:26 +0000
Subject: [PATCH] all.sh: fix MAKEFLAGS setting

MAKEFLAGS was set to -j if it was already set, instead of being set if
not previously set as intended. So now all.sh will do parallel builds
if invoked without MAKEFLAGS in the environment.
---
 tests/scripts/all.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 89d3774f03..5fdb1412db 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -122,7 +122,7 @@ pre_initialize_variables () {
     : ${ARMC6_BIN_DIR:=/usr/bin}
 
     # if MAKEFLAGS is not set add the -j option to speed up invocations of make
-    if [ -n "${MAKEFLAGS+set}" ]; then
+    if [ -z "${MAKEFLAGS+set}" ]; then
         export MAKEFLAGS="-j"
     fi
 }