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: ../../dev/crosstool-NG/ct-ng.trunk/patches/strace/4.5.17/150-undef-CTL_PROC.patch
2 -= BEGIN original header =-
3 diff -dur strace-4.5.16.orig/system.c strace-4.5.16/system.c
4 -= END original header =-
5 diff -durN strace-4.5.17.orig/system.c strace-4.5.17/system.c
6 --- strace-4.5.17.orig/system.c 2007-01-17 00:22:36.000000000 +0100
7 +++ strace-4.5.17/system.c 2008-10-24 21:30:13.000000000 +0200
9 { CTL_KERN, "CTL_KERN" },
11 { CTL_NET, "CTL_NET" },
13 { CTL_PROC, "CTL_PROC" },
16 { CTL_DEBUG, "CTL_DEBUG" },
17 { CTL_DEV, "CTL_DEV" },