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/configure gcc-4.2.1/libstdc++-v3/configure
2 --- gcc-4.2.1.orig/libstdc++-v3/configure 2007-08-03 20:30:21.000000000 +0200
3 +++ gcc-4.2.1/libstdc++-v3/configure 2007-08-03 20:33:56.000000000 +0200
5 cat >>conftest.$ac_ext <<_ACEOF
9 +#error ugly hack to make sure configure test fails here for cross until uClibc supports the complex funcs