Index: toolchain/binutils/Makefile
===================================================================
--- toolchain/binutils/Makefile	(revision 21035)
+++ toolchain/binutils/Makefile	(working copy)
@@ -49,12 +49,9 @@
 		--disable-multilib \
 		--disable-werror \
 		--disable-nls \
-		$(if $(CONFIG_GCC_VERSION_4_4), \
-		  --with-ppl=$(REAL_STAGING_DIR_HOST) \
-		  --with-cloog=$(REAL_STAGING_DIR_HOST) \
-		) \
+		$(GRAPHITE_CONFIGURE) \
 		$(SOFT_FLOAT_CONFIG_OPTION) \
-		$(call qstrip,$(CONFIG_EXTRA_BINUTILS_CONFIG_OPTIONS)) \
+		$(call qstrip,$(CONFIG_EXTRA_BINUTILS_CONFIG_OPTIONS)) 
 
 ifneq ($(CONFIG_SSP_SUPPORT),)
   BINUTILS_CONFIGURE+= \
Index: toolchain/gcc/patches/4.5.0/910-mbsd_multi.patch
===================================================================
--- toolchain/gcc/patches/4.5.0/910-mbsd_multi.patch	(revision 21035)
+++ toolchain/gcc/patches/4.5.0/910-mbsd_multi.patch	(working copy)
@@ -29,6 +29,16 @@
  static void set_Wimplicit (int);
  static void handle_OPT_d (const char *);
  static void set_std_cxx98 (int);
+@@ -454,6 +457,9 @@
+       enable_warning_as_error ("implicit-function-declaration", value, CL_C | CL_ObjC); 
+       break;
+ 
++    case OPT_Werror_maybe_reset:
++      break;
++
+     case OPT_Wformat:
+       set_Wformat (value);
+       break;
 @@ -690,6 +701,12 @@
        flag_exceptions = value;
        break;
@@ -138,7 +148,7 @@
  ; On SVR4 targets, it also controls whether or not to emit a
 --- a/gcc/opts.c
 +++ b/gcc/opts.c
-@@ -891,8 +891,6 @@
+@@ -896,8 +896,6 @@
    flag_schedule_insns_after_reload = opt2;
  #endif
    flag_regmove = opt2;
@@ -147,25 +157,24 @@
    flag_reorder_blocks = opt2;
    flag_reorder_functions = opt2;
    flag_tree_vrp = opt2;
-@@ -912,6 +910,9 @@
+@@ -922,6 +919,8 @@
  
    /* -O3 optimizations.  */
    opt3 = (optimize >= 3);
 +  flag_strict_aliasing = opt3;
 +  flag_strict_overflow = opt3;
-+  flag_delete_null_pointer_checks = opt3;
    flag_predictive_commoning = opt3;
    flag_inline_functions = opt3;
    flag_unswitch_loops = opt3;
-@@ -1638,6 +1639,17 @@
+@@ -1601,6 +1601,17 @@
        enable_warning_as_error (arg, value, lang_mask);
        break;
  
 +    case OPT_Werror_maybe_reset:
 +      {
-+       char *ev = getenv ("GCC_NO_WERROR");
-+       if ((ev != NULL) && (*ev != '0'))
-+         warnings_are_errors = 0;
++	char *ev = getenv ("GCC_NO_WERROR");
++	if ((ev != NULL) && (*ev != '0'))
++	  warnings_are_errors = 0;
 +      }
 +      break;
 +
@@ -173,8 +182,8 @@
 +      break;
 +
      case OPT_Wlarger_than_:
-       /* This form corresponds to -Wlarger-than-.
- 	 Kept for backward compatibility.
+       /* This form corresponds to -Wlarger-than-. 
+          Kept for backward compatibility.
 --- a/gcc/doc/cppopts.texi
 +++ b/gcc/doc/cppopts.texi
 @@ -164,6 +164,11 @@
@@ -232,15 +241,6 @@
  
  @item -fsplit-wide-types
  @opindex fsplit-wide-types
-@@ -5844,7 +5860,7 @@
- @option{-fno-delete-null-pointer-checks} to disable this optimization
- for programs which depend on that behavior.
- 
--Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
-+Enabled at levels @option{-O3}.
- 
- @item -fexpensive-optimizations
- @opindex fexpensive-optimizations
 --- a/gcc/java/jvspec.c
 +++ b/gcc/java/jvspec.c
 @@ -670,6 +670,7 @@
Index: toolchain/gcc/Config.in
===================================================================
--- toolchain/gcc/Config.in	(revision 21035)
+++ toolchain/gcc/Config.in	(working copy)
@@ -67,8 +69,14 @@
 config GCC_USE_GRAPHITE
 	bool
 	prompt "Compile in support for the new Graphite framework in GCC 4.4+" if TOOLCHAINOPTS
-	depends GCC_VERSION_4_4_1 || GCC_VERSION_4_4_2 || GCC_VERSION_4_4_3
+	depends GCC_VERSION_4_4 || GCC_VERSION_4_5
 
+config GCC_USE_SYSTEM_PPL_CLOOG
+	bool
+	prompt "Use the system versions of PPL and CLooG
+	depends GCC_USE_GRAPHITE
+	default n
+
 config EXTRA_GCC_CONFIG_OPTIONS
 	string
 	prompt "Additional gcc configure options" if TOOLCHAINOPTS
Index: toolchain/gcc/Makefile
===================================================================
--- toolchain/gcc/Makefile	(revision 21035)
+++ toolchain/gcc/Makefile	(working copy)
@@ -96,6 +96,7 @@
 		--disable-libmudflap \
 		--disable-multilib \
 		--disable-nls \
+		$(GRAPHITE_CONFIGURE) \
 		$(if $(CONFIG_GCC_USE_GRAPHITE),--with-host-libstdcxx=-lstdc++) \
 		$(SOFT_FLOAT_CONFIG_OPTION) \
 		$(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \
@@ -103,7 +104,7 @@
 		$(if $(CONFIG_GCC_VERSION_LLVM),--enable-llvm=$(BUILD_DIR_BASE)/host/llvm) \
 		$(if $(CONFIG_GCC_VERSION_4_3_3_CS)$(CONFIG_GCC_VERSION_4_4_1_CS)$(CONFIG_GCC_VERSION_4_4_3_CS),--enable-poison-system-directories)
 
-ifneq ($(CONFIG_GCC_VERSION_4_3)$(CONFIG_GCC_VERSION_4_4),)
+ifneq ($(CONFIG_GCC_VERSION_4_3)$(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),)
   GCC_BUILD_TARGET_LIBGCC:=y
   GCC_CONFIGURE+= \
 		--with-gmp=$(TOPDIR)/staging_dir/host \
@@ -164,8 +165,13 @@
 		--enable-languages=$(TARGET_LANGUAGES) \
 		--enable-shared \
 		--enable-threads \
-		--with-slibdir=$(TOOLCHAIN_DIR)/lib \
+		--with-slibdir=$(TOOLCHAIN_DIR)/lib 
 
+ifneq ($(CONFIG_GCC_VERSION_4_5),)
+  GCC_CONFIGURE_STAGE2+= \
+		--enable-lto
+endif
+
 ifneq ($(CONFIG_TLS_SUPPORT),)
   GCC_CONFIGURE_STAGE2+= \
 		--enable-tls
Index: tools/Makefile
===================================================================
--- tools/Makefile	(revision 21035)
+++ tools/Makefile	(working copy)
@@ -11,10 +11,8 @@
 # subdirectories to descend into
 tools-y :=
 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
-ifeq ($(CONFIG_GCC_VERSION_4_5),y)
-tools-$(CONFIG_GCC_VERSION_4_5) += gmp mpfr mpc
-else
-tools-$(CONFIG_GCC_VERSION_4_3)$(CONFIG_GCC_VERSION_4_4) += gmp mpfr
+tools-$(CONFIG_GCC_VERSION_4_3)$(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5) += gmp mpfr
+tools-$(CONFIG_GCC_VERSION_4_5) += mpc
 endif
 endif
 tools-y += m4 autoconf automake bison pkg-config sed mklibs
@@ -32,8 +30,10 @@
 tools-$(CONFIG_CCACHE) += ccache
 
 ifdef CONFIG_GCC_USE_GRAPHITE
-  tools-y += ppl cloog
-  $(curdir)/cloog/compile := $(curdir)/ppl/install
+  ifeq ($(CONFIG_GCC_USE_SYSTEM_PPL_CLOOG),)
+	tools-y += ppl cloog
+	$(curdir)/cloog/compile := $(curdir)/ppl/install
+  endif
 endif
 
 # builddir dependencies