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 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/uclibc/90_all_304-index_macro.patch
2 diff -durN gcc-4.3.1.orig/libstdc++-v3/include/ext/rope gcc-4.3.1/libstdc++-v3/include/ext/rope
3 --- gcc-4.3.1.orig/libstdc++-v3/include/ext/rope 2008-01-31 19:44:55.000000000 +0100
4 +++ gcc-4.3.1/libstdc++-v3/include/ext/rope 2008-06-10 14:59:02.000000000 +0200
7 #include <tr1/functional>
9 +/* cope w/ index defined as macro, SuSv3 proposal */
13 # define __GC_CONST const
15 diff -durN gcc-4.3.1.orig/libstdc++-v3/include/ext/ropeimpl.h gcc-4.3.1/libstdc++-v3/include/ext/ropeimpl.h
16 --- gcc-4.3.1.orig/libstdc++-v3/include/ext/ropeimpl.h 2007-05-04 17:06:46.000000000 +0200
17 +++ gcc-4.3.1/libstdc++-v3/include/ext/ropeimpl.h 2008-06-10 14:59:02.000000000 +0200
19 #include <ext/memory> // For uninitialized_copy_n
20 #include <ext/numeric> // For power
22 +/* cope w/ index defined as macro, SuSv3 proposal */
25 _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)