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 Respect environment CPPFLAGS when we run ./configure so we can inject
2 random -D things without having to set CFLAGS/ASFLAGS
4 diff -durN glibc-2.13.orig/Makeconfig glibc-2.13/Makeconfig
5 --- glibc-2.13.orig/Makeconfig 2009-05-09 23:57:56.000000000 +0200
6 +++ glibc-2.13/Makeconfig 2009-11-13 00:49:41.000000000 +0100
8 $(foreach lib,$(libof-$(basename $(@F))) \
9 $(libof-$(<F)) $(libof-$(@F)),$(CPPFLAGS-$(lib))) \
10 $(CPPFLAGS-$(<F)) $(CPPFLAGS-$(@F)) $(CPPFLAGS-$(basename $(@F)))
11 +CPPFLAGS += $(CPPFLAGS-config)
12 override CFLAGS = -std=gnu99 $(gnu89-inline-CFLAGS) \
13 $(filter-out %frame-pointer,$(+cflags)) $(+gccwarn-c) \
14 $(sysdep-CFLAGS) $(CFLAGS-$(suffix $@)) $(CFLAGS-$(<F)) \