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 gcc-4.2.1.orig/libstdc++-v3/include/ext/rope gcc-4.2.1/libstdc++-v3/include/ext/rope
2 --- gcc-4.2.1.orig/libstdc++-v3/include/ext/rope 2006-10-17 13:56:21.000000000 +0200
3 +++ gcc-4.2.1/libstdc++-v3/include/ext/rope 2007-08-03 20:34:23.000000000 +0200
5 #include <bits/allocator.h>
6 #include <ext/hash_fun.h>
8 +/* cope w/ index defined as macro, SuSv3 proposal */
12 # define __GC_CONST const
14 diff -durN gcc-4.2.1.orig/libstdc++-v3/include/ext/ropeimpl.h gcc-4.2.1/libstdc++-v3/include/ext/ropeimpl.h
15 --- gcc-4.2.1.orig/libstdc++-v3/include/ext/ropeimpl.h 2006-10-17 13:56:21.000000000 +0200
16 +++ gcc-4.2.1/libstdc++-v3/include/ext/ropeimpl.h 2007-08-03 20:34:23.000000000 +0200
18 #include <ext/memory> // For uninitialized_copy_n
19 #include <ext/numeric> // For power
21 +/* cope w/ index defined as macro, SuSv3 proposal */
24 _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)