diff --git a/util/crossgcc/patches/acpica-unix-20110922_no_unused_variables.patch b/util/crossgcc/patches/acpica-unix-20110922_no_unused_variables.patch
deleted file mode 100644
index 1edcb7ff72..0000000000
--- a/util/crossgcc/patches/acpica-unix-20110922_no_unused_variables.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-diff -x '*.o' -ur acpica-unix-20110922.orig//compiler/aslcompiler.l acpica-unix-20110922/compiler/aslcompiler.l
---- acpica-unix-20110922.orig//compiler/aslcompiler.l	2011-10-28 23:24:17.333274002 +0200
-+++ acpica-unix-20110922/compiler/aslcompiler.l	2011-10-28 23:24:56.669274001 +0200
-@@ -550,7 +550,6 @@
-     void)
- {
-     ASL_FILE_NODE           *Fnode;
--    FILE                    *InputFile = NULL;
- 
- 
-     Fnode = InputStack;
-@@ -569,7 +568,6 @@
-     /* Update the top-of-stack */
- 
-     InputStack = Fnode->Next;
--    InputFile = Fnode->File;
- 
-     /* Reset global line counter and filename */
- 
-diff -x '*.o' -ur acpica-unix-20110922.orig//os_specific/service_layers/osunixxf.c acpica-unix-20110922/os_specific/service_layers/osunixxf.c
---- acpica-unix-20110922.orig//os_specific/service_layers/osunixxf.c	2011-10-28 23:24:17.345274002 +0200
-+++ acpica-unix-20110922/os_specific/service_layers/osunixxf.c	2011-10-28 23:56:13.629274002 +0200
-@@ -349,7 +349,6 @@
-     const char              *Fmt,
-     va_list                 Args)
- {
--    INT32                   Count = 0;
-     UINT8                   Flags;
- 
- 
-@@ -362,7 +361,7 @@
-         {
-             /* Output file is open, send the output there */
- 
--            Count = vfprintf (AcpiGbl_DebugFile, Fmt, Args);
-+            vfprintf (AcpiGbl_DebugFile, Fmt, Args);
-         }
-         else
-         {
-@@ -374,7 +373,7 @@
- 
-     if (Flags & ACPI_DB_CONSOLE_OUTPUT)
-     {
--        Count = vfprintf (AcpiGbl_OutputFile, Fmt, Args);
-+        vfprintf (AcpiGbl_OutputFile, Fmt, Args);
-     }
- }
- 
diff --git a/util/crossgcc/patches/acpica-unix-20110922_unknown_warnings.patch b/util/crossgcc/patches/acpica-unix-20120420_unknown_warnings.patch
similarity index 65%
rename from util/crossgcc/patches/acpica-unix-20110922_unknown_warnings.patch
rename to util/crossgcc/patches/acpica-unix-20120420_unknown_warnings.patch
index f53be92e62..2aea0b2c9f 100644
--- a/util/crossgcc/patches/acpica-unix-20110922_unknown_warnings.patch
+++ b/util/crossgcc/patches/acpica-unix-20120420_unknown_warnings.patch
@@ -1,6 +1,6 @@
---- acpica-unix-20110922/compiler/Makefile	2011-09-22 08:59:34.000000000 -0700
-+++ acpica-unix-20110922/compiler/Makefile	2011-10-11 23:47:29.000000000 -0700
-@@ -245,15 +245,11 @@
+--- acpica-unix-20120420/source/compiler/Makefile	2012-04-21 04:02:33.000000000 +0800
++++ acpica-unix-20120420/source/compiler/Makefile	2012-08-08 16:30:14.000000000 +0800
+@@ -261,15 +261,11 @@
      -Waggregate-return \
      -Wchar-subscripts \
      -Wempty-body \
diff --git a/util/crossgcc/patches/binutils-2.21.1_no-bfd-doc.patch b/util/crossgcc/patches/binutils-2.22_no-bfd-doc.patch
similarity index 64%
rename from util/crossgcc/patches/binutils-2.21.1_no-bfd-doc.patch
rename to util/crossgcc/patches/binutils-2.22_no-bfd-doc.patch
index 4fb9e21d84..23f6fa5add 100644
--- a/util/crossgcc/patches/binutils-2.21.1_no-bfd-doc.patch
+++ b/util/crossgcc/patches/binutils-2.22_no-bfd-doc.patch
@@ -1,5 +1,5 @@
---- binutils-2.21.1/bfd/Makefile.in	2011-06-27 01:57:12.000000000 -0700
-+++ binutils-2.21.1/bfd/Makefile.in	2011-10-11 21:59:15.000000000 -0700
+--- binutils-2.22/bfd/Makefile.in	2011-06-27 01:57:12.000000000 -0700
++++ binutils-2.22/bfd/Makefile.in	2011-10-11 21:59:15.000000000 -0700
 @@ -323,7 +323,7 @@
  RELEASE = y
  INCDIR = $(srcdir)/../include