[OE-core] [PATCH] gcc-4.8: Fix on-device SDK C++ runtime issue

[Khem Raj]

This fixes the issue where g++ is not able to
find C++ headers when sysroot is '/'

The patch needs to be upstreamed into gcc as well.

[Yocto #4812]

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 meta/recipes-devtools/gcc/gcc-4.8.inc              |    1 +
 .../gcc/gcc-4.8/0040-fix-g++-sysroot.patch         |   40 ++++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 meta/recipes-devtools/gcc/gcc-4.8/0040-fix-g++-sysroot.patch

diff --git a/meta/recipes-devtools/gcc/gcc-4.8.inc b/meta/recipes-devtools/gcc/gcc-4.8.inc
index 3219e0c..dafa241 100644
--- a/meta/recipes-devtools/gcc/gcc-4.8.inc
+++ b/meta/recipes-devtools/gcc/gcc-4.8.inc
@@ -69,6 +69,7 @@ SRC_URI = "${GNU_MIRROR}/gcc/gcc-${PV}/gcc-${PV}.tar.bz2 \
 	   file://0037-gcc-4.8-PR56797.patch \
 	   file://0038-gcc-4.8-build-args.patch \
 	   file://0039-gcc-4.8-PR57717.patch \
+	   file://0040-fix-g++-sysroot.patch \
 	  "
 SRC_URI[md5sum] = "3b2386c114cd74185aa3754b58a79304"
 SRC_URI[sha256sum] = "545b44be3ad9f2c4e90e6880f5c9d4f0a8f0e5f67e1ffb0d45da9fa01bb05813"
diff --git a/meta/recipes-devtools/gcc/gcc-4.8/0040-fix-g++-sysroot.patch b/meta/recipes-devtools/gcc/gcc-4.8/0040-fix-g++-sysroot.patch
new file mode 100644
index 0000000..d50aa5c
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.8/0040-fix-g++-sysroot.patch
@@ -0,0 +1,40 @@
+Portions of
+
+http://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg26013.html
+
+are not upstreamed yet. So lets keep missing pieces.
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem at gmail.com>
+
+Index: gcc-4.8.1/gcc/configure.ac
+===================================================================
+--- gcc-4.8.1.orig/gcc/configure.ac	2013-07-15 15:55:49.488399132 -0700
++++ gcc-4.8.1/gcc/configure.ac	2013-07-15 16:02:31.772406679 -0700
+@@ -148,7 +148,9 @@
+ if test "${with_sysroot+set}" = set; then
+   gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
+   if test "${gcc_gxx_without_sysroot}"; then
+-    gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
++    if test x${with_sysroot} != x/; then
++      gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
++    fi
+     gcc_gxx_include_dir_add_sysroot=1
+   fi
+ fi
+Index: gcc-4.8.1/gcc/configure
+===================================================================
+--- gcc-4.8.1.orig/gcc/configure	2013-07-15 15:55:49.472399132 -0700
++++ gcc-4.8.1/gcc/configure	2013-07-15 16:02:31.780406680 -0700
+@@ -3325,7 +3325,9 @@
+ if test "${with_sysroot+set}" = set; then
+   gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
+   if test "${gcc_gxx_without_sysroot}"; then
+-    gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
++    if test x${with_sysroot} != x/; then
++      gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
++    fi
+     gcc_gxx_include_dir_add_sysroot=1
+   fi
+ fi
-- 
1.7.9.5