diff --git a/script/setup_env.sh b/script/setup_env.sh
index 512e69b6a9f0f29984abc3b403b70747f9c85d5d..287ddb2647b352356e32064d19a9e6be7f3e29be 100755
--- a/script/setup_env.sh
+++ b/script/setup_env.sh
@@ -133,6 +133,8 @@ function find_aarch64-qnx-gnu-gcc() {
 		
 		toolchain_echo_var_yellow QNX_HOST
 		toolchain_echo_var_yellow QNX_TARGET
+		
+		CXX_OPTIONS_0="-D__EXT"
 	fi
 	return
 }
@@ -204,6 +206,7 @@ if [ "$0" != "${BASH_SOURCE[0]}" ] ; then
 	unset TOOLCHAIN_CMAKE
 	
 	unset find_info
+	unset CXX_OPTIONS_0
 	find_aarch64-linux-gnu-gcc
 	find_aarch64-qnx-gnu-gcc
 
@@ -263,6 +266,8 @@ if [ "$0" != "${BASH_SOURCE[0]}" ] ; then
 		export GCC_TARGET=${gcc_target}
 		export GCC_VERSION=${gcc_version}
 		export GCC_TARGET_TAG=${gcc_target_tag}
+		
+		export CXX="${GCC_PREFIX}g++ ${CXX_OPTIONS_0}"
 	
 		toolchain_info