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 --- glibc-2.12.1/sysdeps/unix/sysv/linux/kernel-features.h 2010-07-27 14:34:39.000000000 +0300
2 +++ glibc-2.12.1/sysdeps/unix/sysv/linux/kernel-features.h.new 2011-03-10 18:54:37.686795979 +0200
4 the code. On PPC they were introduced in 2.6.17-rc1,
5 on SH in 2.6.19-rc1. */
6 #if __LINUX_KERNEL_VERSION >= 0x020611 \
7 - && (!defined __sh__ || __LINUX_KERNEL_VERSION >= 0x020613)
8 + && (!defined __sh__ || __LINUX_KERNEL_VERSION >= 0x020613) \
9 + && (!defined __alpha__)
10 # define __ASSUME_ATFCTS 1