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@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