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 Correctly check for g++ existence.
3 Copyright 2007 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
4 Licensed to you as dmalloc-5.5.2 is.
6 diff -dur dmalloc-5.5.2.orig/configure dmalloc-5.5.2/configure
7 --- dmalloc-5.5.2.orig/configure 2007-05-18 11:40:31.000000000 +0200
8 +++ dmalloc-5.5.2/configure 2007-05-18 11:42:02.000000000 +0200
12 # see if we actually have a CXX program
13 -if test "$ac_cv_prog_CXX" = "" -o ! -x "$ac_cv_prog_CXX"; then
14 +if test "$ac_cv_prog_CXX" = "" -o ! -x `which "$ac_cv_prog_CXX"`; then
15 { echo "$as_me:$LINENO: WARNING: could not find C++ compiler $ac_cv_prog_CXX" >&5
16 echo "$as_me: WARNING: could not find C++ compiler $ac_cv_prog_CXX" >&2;}