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 CT_LOCAL_TARBALLS_DIR="${HOME}/src"
8 CT_BINUTILS_V_2_20_1a=y
9 CT_BINUTILS_FOR_TARGET=y
15 CT_LIBC_UCLIBC_V_0_9_30_2=y
16 CT_LIBC_UCLIBC_CONFIG_FILE="${CT_LIB_DIR}/samples/${CT_TARGET}/${CT_LIBC}-${CT_LIBC_VERSION}.config"