gcc-runtime.inc: Add CPP support for x86-64-x32 tune

Using the following setup (as specified in yocto sample code):

MACHINE = "qemux86-64"
require conf/multilib.conf
MULTILIBS = "multilib:libx32"
DEFAULTTUNE_virtclass-multilib-libx32 = "x86-64-x32"

We fail to compile simple CPP programs because CPP cannot
find relevant header files, looking for them in a non-existing place.
To fix this, we create a symlink of the name CPP expects and point it to
the corresponding existing directory.

[YOCTO#10354]
[YOCTO#10380]

(From OE-Core rev: 9f9be229040f4f9a523a1e25afd78d5c3f4efc23)

Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-runtime.inc b/meta/recipes-devtools/gcc/gcc-runtime.inc
index 321a6deda4..15252f1a40 100644
--- a/meta/recipes-devtools/gcc/gcc-runtime.inc
+++ b/meta/recipes-devtools/gcc/gcc-runtime.inc
@@ -95,6 +95,14 @@ do_install_append_class-target () {
                         ln -s ${TARGET_SYS} ${D}${includedir}/c++/${BINV}/${TARGET_ARCH}${TARGET_VENDOR}-linux
                 fi
         fi
+        if [ "${TARGET_OS}" = "linux-gnux32" ]; then
+                if [ "${MULTILIBS}" != "" ]; then
+                        mkdir ${D}${includedir}/c++/${BINV}/${TARGET_ARCH}-poky-linux
+                        ln -s ../${TARGET_SYS} ${D}${includedir}/c++/${BINV}/${TARGET_ARCH}-poky-linux/x32
+                else
+                        ln -s ${TARGET_SYS} ${D}${includedir}/c++/${BINV}/${TARGET_ARCH}${TARGET_VENDOR}-linux
+                fi
+        fi
 
         if [ "${TCLIBC}" != "glibc" ]; then
                 case "${TARGET_OS}" in