cc/gcc: Set CXX_FOR_BUILD for bare metal and canadian build.
>From 4.8, g++ is used as the default compiler to build the toolchain.
Signed-off-by: Zhenqiang Chen <zhenqiang.chen@linaro.org>
Message-Id: <CACgzC7B-LQvAw3hOYhBA7b7g0H1WtH20gqXM=Y=YFO4FrnZKWQ@mail.gmail.com>
Patchwork-Id: 243590
1 # Options specific to crosstool-NG acting as a backend
5 option env="CT_IS_A_BACKEND"
9 default y if IS_A_BACKEND = "y" || IS_A_BACKEND = "Y"
13 option env="CT_BACKEND_ARCH"
17 option env="CT_BACKEND_KERNEL"
21 option env="CT_BACKEND_LIBC"