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 http://sourceware.org/ml/libc-alpha/2002-10/msg00392.html
3 diff -durN glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/mips/fpu_control.h glibc-2.10.1/glibc-ports-2.10.1/sysdeps/mips/fpu_control.h
4 --- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/mips/fpu_control.h 2009-05-16 10:36:20.000000000 +0200
5 +++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/mips/fpu_control.h 2009-11-13 00:51:31.000000000 +0100
8 #define _FPU_RC_DOWN 0x3
10 -#define _FPU_RESERVED 0xfe3c0000 /* Reserved bits in cw */
11 +#define _FPU_RESERVED 0xfebc0000 /* Reserved bits in cw */
14 /* The fdlibm code requires strict IEEE double precision arithmetic,
15 diff -durN glibc-2.10.1.orig/ports/sysdeps/mips/fpu_control.h glibc-2.10.1/ports/sysdeps/mips/fpu_control.h