gcc_4.5.0: import a missing patch from gcc_4.3.3

[BUGID #208]

Thanks to Edwin Zhai for reproducing issue and narrowing it down to the
segmentation fault in the floorf function of libstdc++-v3

And

Thanks to RP for pointing out that this is a known issue with the fix
already in the gcc 4.3.3 recipe

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Richard Purdie <richard@openedhand.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/meta/packages/gcc/gcc-4.5.0/optional_libstdc.patch b/meta/packages/gcc/gcc-4.5.0/optional_libstdc.patch
new file mode 100644
index 0000000000..0f74353a1f
--- /dev/null
+++ b/meta/packages/gcc/gcc-4.5.0/optional_libstdc.patch
@@ -0,0 +1,23 @@
+gcc-runtime builds libstdc++ separately from gcc-cross-*. Its configure tests using g++ 
+will not run correctly since my default the linker will try and link against libstdc++
+which shouldn't exist yet. We need an option to disable the automatically added -lstdc++
+option whilst leaving -lc, -lgcc and other automatic library dependencies. This patch 
+adds such an option which only disables the -lstdc++ linkage.
+
+A "standard" gcc build uses xgcc and hence avoids this. We should ask upstream how to 
+do this officially, the likely answer is don't build libstdc++ separately.
+
+RP 29/6/10
+
+Index: gcc-4.3.3/gcc/cp/g++spec.c
+===================================================================
+--- gcc-4.3.3.orig/gcc/cp/g++spec.c     2010-06-29 00:06:03.901695025 +0100
++++ gcc-4.3.3/gcc/cp/g++spec.c  2010-06-29 00:06:58.800325439 +0100
+@@ -131,6 +131,7 @@
+       if (argv[i][0] == '-')
+        {
+          if (strcmp (argv[i], "-nostdlib") == 0
++             || strcmp (argv[i], "-nostdlib++") == 0
+              || strcmp (argv[i], "-nodefaultlibs") == 0)
+            {
+              library = -1;