cc/gcc: Apply CT_CC_GCC_DISABLE_PCH to do_cc_core.
Otherwise, users have to input --disable-libstdcxx-pch option
when building bare-metal CANADIAN C++ compiler.
Reviewed-by: Michael Hope
Signed-off-by: Zhenqiang Chen <zhenqiang.chen@linaro.org>
(transplanted from e3e1c9d45bddfbfb433ee9d583faf42fa31f50c0)
1 # Overall toolchain configuration: paths, jobs, etc...
3 # Allow unconditional usage of tristates
8 menu "Paths and misc options"
10 source "config/global/ct-behave.in"
11 source "config/global/paths.in"
12 source "config/global/download.in"
13 source "config/global/extract.in"
14 source "config/global/build-behave.in"
15 source "config/global/logging.in"