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 # MIPS specific config options
12 This is the -mabi=32 gcc option.
19 This is the -mabi=n32 gcc option.
26 This is the -mabi=64 gcc option.
28 # Not supported on Linux:
29 # o64 : seems related to *BSD
30 # eabi : seems related to bare-metal
36 default "32" if ARCH_mips_o32
37 default "n32" if ARCH_mips_n32
38 default "64" if ARCH_mips_n64