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 diff -durN glibc-2.6.1.orig/glibc-ports-2.6.1/sysdeps/unix/sysv/linux/arm/nptl/sysdep-cancel.h glibc-2.6.1/glibc-ports-2.6.1/sysdeps/unix/sysv/linux/arm/nptl/sysdep-cancel.h
2 --- glibc-2.6.1.orig/glibc-ports-2.6.1/sysdeps/unix/sysv/linux/arm/nptl/sysdep-cancel.h 2005-11-16 20:22:59.000000000 +0100
3 +++ glibc-2.6.1/glibc-ports-2.6.1/sysdeps/unix/sysv/linux/arm/nptl/sysdep-cancel.h 2007-09-06 13:53:16.000000000 +0200
5 # define NO_CANCELLATION 1
10 +# define RTLD_SINGLE_THREAD_P \
11 + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
12 + header.multiple_threads) == 0, 1)