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-4.4.4.orig/gcc/config/alpha/alpha.h gcc-4.4.4/gcc/config/alpha/alpha.h
2 --- gcc-4.4.4.orig/gcc/config/alpha/alpha.h 2009-02-20 16:20:38.000000000 +0100
3 +++ gcc-4.4.4/gcc/config/alpha/alpha.h 2010-05-16 19:10:19.000000000 +0200
8 +#define CPP_SPEC "%{!no-ieee:-mieee}"
10 #define WORD_SWITCH_TAKES_ARG(STR) \
11 (!strcmp (STR, "rpath") || DEFAULT_WORD_SWITCH_TAKES_ARG(STR))
13 diff -durN gcc-4.4.4.orig/gcc/config/alpha/alpha.opt gcc-4.4.4/gcc/config/alpha/alpha.opt
14 --- gcc-4.4.4.orig/gcc/config/alpha/alpha.opt 2007-08-02 12:49:31.000000000 +0200
15 +++ gcc-4.4.4/gcc/config/alpha/alpha.opt 2010-05-16 19:10:19.000000000 +0200
17 Request IEEE-conformant math library routines (OSF/1)
20 -Target Report RejectNegative Mask(IEEE)
21 +Target Report Mask(IEEE)
22 Emit IEEE-conformant code, without inexact exceptions