gcc-5.2: Fix various _FOR_BUILD and related variables

When doing a FOR_BUILD thing, you have to override CFLAGS with
CFLAGS_FOR_BUILD. And if you use C++, you also have to override
CXXFLAGS with CXXFLAGS_FOR_BUILD.
Without this, when building for mingw, you end up trying to use
the mingw headers for a host build.

The same goes for other variables as well, such as CPPFLAGS,
CPP, and GMPINC.

(From OE-Core rev: 85ca40c42950315f2783b98f57df16b261d2826e)

Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-5.2.inc b/meta/recipes-devtools/gcc/gcc-5.2.inc
index f6673e6a35..a6b385ac65 100644
--- a/meta/recipes-devtools/gcc/gcc-5.2.inc
+++ b/meta/recipes-devtools/gcc/gcc-5.2.inc
@@ -73,6 +73,7 @@ SRC_URI = "\
            file://0039-libcc1-fix-libcc1-s-install-path-and-rpath.patch \
            file://0040-nativesdk-gcc-support.patch \
            file://0041-handle-target-sysroot-multilib.patch \
+           file://0042-cxxflags-for-build.patch \
           "
 
 BACKPORTS = ""