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)
5 prompt "libelf version"
6 # Don't remove next line
7 # CT_INSERT_VERSION_BELOW
13 config LIBELF_V_0_8_12
21 # Don't remove next line
22 # CT_INSERT_VERSION_STRING_BELOW
23 default "0.8.13" if LIBELF_V_0_8_13
24 default "0.8.12" if LIBELF_V_0_8_12