From 6a9b3de0bbee56e1061b2cdee07d8fd339f5820a Mon Sep 17 00:00:00 2001
From: liuhaitao <liuhaitao@xiaomi.com>
Date: Tue, 26 May 2020 19:58:49 +0800
Subject: [PATCH] tools/testbuild.sh: fix testbuild.sh called without -e option
 fail issue

As in https://github.com/apache/incubator-nuttx/issues/1114 discuss, let
EXTRA_FLAGS="EXTRAFLAGS=" defaultly to avoid testbuild.sh called without
-e option fail issue. It also works well with -e "-Wno-cpp -Werror".

Signed-off-by: liuhaitao <liuhaitao@xiaomi.com>
---
 tools/testbuild.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testbuild.sh b/tools/testbuild.sh
index 91efb5354e..e49267ba6f 100755
--- a/tools/testbuild.sh
+++ b/tools/testbuild.sh
@@ -39,7 +39,7 @@ progname=$0
 fail=0
 APPSDIR=$WD/../apps
 MAKE_FLAGS=-k
-EXTRA_FLAGS=
+EXTRA_FLAGS="EXTRAFLAGS="
 MAKE=make
 unset testfile
 unset HOPTION
@@ -89,7 +89,7 @@ while [ ! -z "$1" ]; do
     ;;
   -e )
     shift
-    EXTRA_FLAGS="EXTRAFLAGS=$1"
+    EXTRA_FLAGS+="$1"
     ;;
   -x )
     MAKE_FLAGS='--silent --no-print-directory'